terofox api609 resilient seated butterfly valve (rev.00)
TRANSCRIPT
25F, No.758, Zhongming S. Rd., South Dist., Taichung City 402, Taiwan (R.O.C.) Tel: +886-4-22655306Fax: +886-4-22650723 Email: [email protected]: www.terofox.com
CT201605 BALL-VALVES 500
Resilient Seated Butterfly Valves
Terofox ValvesIntegrated Corporation
PRODUCTSCOPEAPI 607 Fire Safe Ball Valve
API 608 Metal Ball Valve
BS 6364 Cryogenic Ball Valve
ISO 15848 Fugitive Emission
High Pressure Ball Valve
V-port Control Ball Valve
Automation Control Ball Valve
Multi-way Ball Valve
Sanitary Ball Valve
API 6D Trunnion Mounted Ball Valve
API 594 Dual Plate Check Valve
API 600 Gate, Globe & Check Valve
API 602 Gate, Globe & Check Valve
API 603 Gate, Globe & Check Valve
API 609 Resil ient Seated Butterfly Valve
High Performance Butterfly Valve
INDEXCompany Profile
Product Quality Assurance
Terofox Model Selection
Features & Standards
Applications
Specification
Comparison Table for Valves
Products
BFV-700 seriesWafer Type Concentric Resilient Seated Series Butterfly Valve
Installation PrecautionBolt Installation Data MaintenanceTroubleshooting
Installation & Maintenance
01 02
BFV-701 seriesLug Type Concentric Resilient Seated Series Butterfly Valve
BFV-702V seriesDouble Flange Type Concentric Resilient Seated Series Butterfly Valve
BFV-703 seriesU-section Type Concentric Resilient Seated Series Butterfly Valve
T series2-PC PTFE Lining Concentric Series Butterfly Valve
D seriesDovetail Type (Soft Back Seat) Concentric Resilient Seated Series Butterfly Valve
03
04
05
06
06
07
09
10
27
www.terofox.com
Torque Table CV value & CurveMedium & Material Applicable
Technical Reference 24
Business With Integrity,UncompromisingQuality & Service
Terofox Concentric Butterfly Valve
e are a Taiwanese Valves Manufacturer based in Taichung City, Taiwan. Our dedicated team of Engineers and Quality Assurance personnel is working on our behalf at all points of manufacturing. Therefore we are able to work closely, making sure that all our customers’ needs and concerns are consistently and professionally monitored on ongoing basis. There are two production lines both between Taichung, Taiwan and Zhongshan, China. We also own a production factory with a foundry (certificated by EU PED Equipment Pressure of TÜV Germany & ISO 9001:2000 of DNV GL Assurance. )
Terofox adopts philosophy of “supplying quality first”. ISO-9001 certified production units, high-quality materials, internally recognized designs, precise execution, and dedicated services all come together to customer satisfaction towards Terofox. The foundation stone of strict quality control is “Terofox Quality Assurance Program” in which encloses standardized quality control procedures and guides, in accordance with ISO 9001 and other Directives.
Advancing pattern designs is the addition to the absolute quality maintenance. Terofox team is determined to propose best possible solutions at an efficient cost. Persisting long-term business relationships, Terofox seeks whatis best for customers.
In order to satisfy variety of requirements, we have applied for certificates such as ISO 9001, CE ( PED 97/23/EC ), API607 6th Edition Fire Safe Approved for floating and trunnion mounted ball valve, ABS PDA certificate, TA-Luft, ISO15848 for Fugitive Emission applications, AD-2000, as well as foundry approvals: DNV, BV, LR certifications.
Our mission is to assist our customers in obtaining the best possible solutions to their requirements and needs, at the most advantageous prices, without compromising on delivery or quality. With this in mind, we believe in developing long terms relationships, based on mutual trust and honesty.
• API608 Floating Stainless Steel Ball valve • API6D Trunnion Ball valves.• API 594 Dual plate check valves.• Concentric Butterfly Valves (Pins and Pinless / PTFE lining )
But our main focus is our “Special Product Line” in Taiwan that includes:• Sanitary Valves.• BS6364 Cryogenic Valves: Used in the transmission of extreme low temperature services.• Special Alloy Valves: Some of the Materials we offer are Alloy 20, Monel, Hastelloy, Duplex/ Super Duplex Stainles Steel, Titanium and more.• Dead-man Return Ball Valves: Spring Return Handle that decreases the Torque for easier use.• Fugitive Emission ISO15848-1 certified : Safety is a trend nowadays, our low emission valve meets ISO15848-1 for eliminating fugitive emission• API607 6th Edition / ISO10497:2010 Fire Safe Approval ball valves - Flange Ball valves ( TF-20FS, TF-20DFS ), Trunnion Mounted Ball Valve ( TF-40FS, TF-44FS ) and high performance Ball Valve (EB-321DFS), Wafer Type Ball Valve ( TF-10MFS)
Terofox Highlights at a Glance:
ISO 9001 certified manufacturing facilitiesDesigns adherence to internationally recognized standards- API 609- ASME B16.34- EN593 (BS5163)- MSS-SP-67- EN1092100 % Q.C- All valves undergo pressure testing to 110% of rated pressure to assure bubble-tight shut off. Material Traceability - Every order will be delivered with a EN10204 3.1 mill certificate without charge.- Positive Material Identification verifies material traceability certificates.
www.terofox.com03 04
Product Quality Assurance
Company Pro�leW
Terofox provides one stop service in diversity of valves’ procurement and ODM & OEM manufacturing, all our products and quality management procedures are in accordance with ISO 9001. Our wide range of products includes:
Small in size and light in weight. Easy installation and maintenance. Simple and compact construction,
quick 90 degrees on-off operation.
Minimized operating torque, energy-saving.
Bubble-tight shut-off for bidirectional service to 15 Bar on sizes 2”-12” (50mm-300mm) and to 10 Bar
on sizes 14”-24” (350mm-600mm). Wide selection of materials, applicable for various medium.
Long service life: standing the test of tens of thousands opening/closing operations.
Flow curve tending to straight line. Excellent regulation performance
www.terofox.com05 06
Features & StandardsTerofox Model Selection
Applications
*1 Standard seat design of PTFE lining type is not phenolic back seat, please see page 20 for further information.
BFV-7 + +
DISCPin design disc
Pinless design disc
Slim-disc
PTFE lining disc
PTFE lining Slim-disc
BODY1-pc design body
2-pc design body
Phenolic back seat *1
Dovetail seat
Vulcanized seat
OPERATIONDouble acting pneumatic actuator
Spring return pneumatic actuator
Electric actuator
Wafer type
Lug type
Double flange type
U-Section type
U-Section ( taper threaded ) type
Universal type
DA
SR
EL
D
V
T
0
1
2
3
4
0
1
2
3
3L
4
Terofox products are used in a wide range of industries including:
Air Separation EquipmentChemicalEvacuation DeviceHVACMiningOil Refining IndustryPharmaceuticalPulp & Paper
SeawaterSugar/EthanolUltrapure WaterBeverageDesalinationFood ProcessingIrrigationMarine
Power Plant Petroleum Refining & OilfieldPower/ FgdSteel ProductionTextileWater & Wastewater Treatment Equipment
SEAT
END CONNECTION
BFV-700 series
BFV-701 series
BFV-702V series
BFV-703 series
T series
D series
Wafer Type Concentric Resilient Seated Butterfly Valve Series
Lug Type Concentric Resilient Seated Butterfly Valve Series
Double Flange Type Concentric Resilient Seated Butterfly Valve Series
U-Section Type Concentric Resilient Seated Butterfly Valve Series
PTFE Lining Concentric Butterfly Valve Series
Dovetail Type (Soft Back Seat) Concentric Resilient Seated Butterfly Valve Series
According to sleeve type (refer to page 26) for reference.
Fig No.
WorkingTemperature
End Connection Rating
ANSI Class 125 / 150
DIN PN 10 / 16
JIS 10K
Valve Design
Top Flange
Face to Face
API 609, ASME B16.34, EN 593, MSS SP-67
ISO 5211
API 609, ISO 5752, EN 558, ASME B16.10.
PressureTesting
Shell testing
LPC testing (low pressure closure testing)
2” ~ 20” (DN 50 ~ DN 600) 15 / 24 Bar
22” ~ 40” (DN 550 ~ DN 1000) 15 Bar
2” ~ 40” (DN 50 ~ DN 1000) 6 Bar
www.terofox.com07 08
Speci�cation Speci�cation
Square Stem (STD): suitable to actuator assembling for sizes 2”~24”.Double Key stem: Be applicable for sizes over 24”.
Top mounting complies with ISO 5211, suitable toactuator assembling. Nameplate (with material info) on the side of mounting pad.
Square stem Double Keyed stem
Top Mounting
Disc
Stem
Pin Design Disc: Common design for concentric butterfly valve. Disc-to-stem connection depends on pins. (STD)Pinless Design Disc: Complete isolation between stem and media, providing longer service time.Slim Disc: Providing a much higher CV and greater pressure recovery, and also complete isolation between stem and medium.Lining Disc: PTFE lining provides corrosion resistance
Pin design disc
Pinless design disc
Slim-disc
Lining disc
Seat
Operation
Dovetail seat
Phenolic Back Seat (STD): Elastomer is supported by hard phenolic backing and can be replaceable easilyDovetail Seat / Soft Back Seat: Complete isolation of flowing medium from the body. Installation must be between two flanges to make seat subject to distortion.Vulcanized Seat: Vulcanization to the entire body interior prevents distortion (creep) during valve operation. Irreplaceable.
Cast iron lever with 9 positions notch plate, aluminum and stainless steel lever is available for option.
Manual gear operator featuring reducing open/close torque. The main function is to saving strength, secondary wormgear is available.
Pneumatic ActuatorElectronic ActuatorOverride Gear BoxLimit Switch BoxSolenoidPositioner
Actuators & Accessories
Vulcanized seat
Phenolic back seat
SEAT: Terofox standard phenolicback seat can be replaceable easily, and dovetail seat and vulcanized seat for option.
DISC: Three types for options, providing additional coating or lining for different specific application.
PIN: Fixing disc and stem, and pinless available upon request.
WAFER / LUG BODY: Cast iron, ductile iron and carbon steel body with epoxy powder coating. 1-pc design body to be fabricated easily ; 2-pc design specifically for PTFE lining type
NECK: Extended neck design in all valve sizes allows 2” of piping insulation and provides easy access for mounting actuators
STEM: Stem size and structure are in compliance with ISO 5211 (excluding double D stem). 1-pc design stem and 2-pc design stem to suit different disc type.
O-RING: Designed to be seated in a groove and compressed during assembly between stem and body, creating a seal at the interface.
Figure 01. BFV-700 / BFV-701 Explode View
STEM BUSHING: The bushing assures correct interaction between the upper stem and the lower stem while ensures the smooth running of the stem.1./
6./
7./
8./
2./
3./
4./
5./
2
6
7
7
1
1
8
4
5
3
www.terofox.com11 12
BFV-700Wafer Type Concentric Resilient
Seated Butterfly Valve
SIZE
DIMENSIONS AND WEIGHT
DN50 2"
DN65 2-1/2"
DN80 3"
DN100 4"
A B L H1ØJ NxØP R°
140
150
158
176
80
89
114
ØD
78.8
104
52.6
64.3
95
120.7
139.7
152.4
190.5 45
DN125 5"
DN150 6"
190 127 215.9
212
123.3
155.7139 241.3
235
265
305
203
175
242
202.4
250.4
301.5
45
32
45
32
45
32
32
32
32
298.5
362.0
431.8
4xØ20
4xØ23
4xØ26
4xØ20
4xØ20
4xØ20
30
45
90
30
45
90
45
90
8"
10"
12"
DN200
DN250
DN300
unit:mm
295
350
400
30
30
45
43
46
46
52
56
56
60
68
78
ØJ NxØP R°125
145
160
180 45
210
240
295
355
410
4xØ18
4xØ18
4xØ26
*4xØ18
4xØ18
4xØ18
4xØ22
4xØ22
4xØ26
30
45
90
30
45
90
30
45
4xØ26
4xØ23
4xØ23
4xØ23
4xØ23
4xØ23
NxØP R°ØJ125
145
160
180
210
240
4xØ18
4xØ18
*4xØ18
4xØ18
4xØ18
4xØ22
45
45
90
45
90
45
Weight(kg)
CL150 PN10 PN16
14
3.2
21
3.6
32
3.8
5.3
6.6
8.2
R°
ØD
L
B
A
H1
ØJ
NxØP
Figure 02. BFV-700 Cross-sectional
www.terofox.com13 14
CONNECTION DIMENSIONS
Outer Diameter of flange (ØG) Diameter of center Circle (ØJ) Number and Diameter of bolt Holes (NxØP)
2” ~ 2-1/2” (DN 50 ~ DN 65) 3” (DN 80)
4” ~ 14” (DN 100 ~ DN350)
16” ~24” (DN 400 ~ DN600)
28” ~40” (DN 700 ~ DN 1000)
Wafer Type Shape against Size
506580
100125150200250300350400450500600
DN 150LB PN 10 PN 16 JIS 10K 150LB PN 10 PN 16 JIS 10K 150LB PN 10 PN 16 JIS 10K150180190230255280345405485535595635700815
165185200220250285340405460520580640715840
165185200220250285340405460520580640715840
155175185210250280330400445490560620675745
120.7139.7152.4190.5215.9241.3298.5362
431.8476.3539.8577.9635
749.3
125145160180210240295350400460515565620725
125145160180210240295355410470525585650770
120140150175210240290355400445510565620730
4-194-194-198-198-228-228-22
12-2612-2612-2916-2916-3220-3220-35
4-184-188-188-188-188-238-23
12-2312-2316-2316-2620-2620-2620-30
4-184-188-188-188-188-23
12-2312-2612-2616-2616-3020-3020-3320-36
4-194-198-198-198-238-23
12-2312-2516-2516-2516-2720-2720-2724-33
≧16"
R°
L
ØD
B
A
ØJ
NxØP
SIZE
DIMENSIONS AND WEIGHT
A B LØJ NxØP R°
ØD
unit:mm
ØJ NxØP R°NxØP R°ØJWeight(kg)
CL150 PN10 PN16
8"
10"
12"
14"
DN200
DN250
DN300
DN350
DN400 16"
DN450 18"
DN500 20"
6"DN150
DN600 24"
235
265
305
363
400
422
480
212
562
203
175
242
267
309
328
361
139
459
202.4
333.5
250.4
301.5
389.6
440.5
491.6
155.7
592.5
298.5
362.0
431.8
476.3
539.8
577.9
635.0
241.3
749.3
4xØ26
4xØ23
4xØ26
4xØ29
4xØ29
4xØ32
4xØ32
4xØ23
4xØ35
30
30
30
45
22.5
18
22.5
45
18
60
68
78
78
102
114
127
56
154
22.5
18
18
18
30
30
45
22.5
30
525
585
650
770
240
295
355
410
470
4xØ30
4xØ30
4xØ33
4xØ36
4xØ26
4xØ22
4xØ22
4xØ26
4xØ26
114
11.1
163
21
215
28
42
50
96
18
18
18
22.5
30
30
22.5
45
45
515
565
620
725
295
350
400
460
240
4xØ26
4xØ26
4xØ26
4xØ30
4xØ23
4xØ23
4xØ23
4xØ23
4xØ22
www.terofox.com15 16
≧16"
R°
L
ØDA
B
ØJ NxM
SIZE
DIMENSIONS AND WEIGHT
A B LØJ NxØP R°
ØD
unit:mm
ØJ NxØP R°NxØP R°ØJWeight(kg)
CL150 PN10 PN16
8"
10"
12"
14"
DN200
DN250
DN300
DN350
DN400 16"
DN450 18"
DN500 20"
6"DN150
DN600 24"
235
265
305
363
400
422
480
212
562
203
175
242
267
309
328
361
139
459
202.4
333.5
250.4
301.5
389.6
440.5
491.6
155.7
592.5
298.5
362.0
431.8
476.3
539.8
577.9
635.0
241.3
749.3
30
30
30
45
22.5
18
22.5
45
18
60
68
78
78
102
114
127
56
154
22.5
18
18
18
30
30
45
22.5
30
525
585
650
770
240
295
355
410
470
18
18
18
22.5
30
30
22.5
45
45
515
565
620
725
295
350
400
460
240
135
15.2
221
26
285
34
52
60
10616x1-1/8"-7
UNC-2B20x1-1/8"-7
UNC-2B
20x1-1/4"-7UNC-2B
8x3/4"-10UNC-2B
8x3/4"-10UNC-2B
12x7/8"-9UNC-2B
12x7/8"-9UNC-2B
16x1" -8UNC-2B
12x1"-8UNC-2B
16xM27
20xM27
20xM30
20xM33
8xM20
12xM20
12xM24
12xM24
16xM24
16xM24
20xM24
20xM24
20xM27
8xM20
12xM20
12xM20
16xM20
8xM20
19
4.2
27
4.7
42
5.2
9
10.9
12.3
°R
ØD
L
H1
B
A
ØJ
NxM
BFV-701Lug type concentric resilient seated
butterfly valve
SIZE
DIMENSIONS AND WEIGHT
DN50 2"
DN65 2-1/2"
DN80 3"
DN100 4"
A B L H1ØJ NxM R°
140
150
158
176
80
89
114
ØD
78.8
104
52.6
64.3
95
120.7
139.7
152.4
190.5 45
DN125 5"
DN150 6"
190 127 215.9
212
123.3
155.7139 241.3
235
265
305
203
175
242
202.4
250.4
301.5
45
32
45
32
45
32
32
32
32
298.5
362.0
431.8
30
45
90
30
45
90
45
90
8"
10"
12"
DN200
DN250
DN300
unit:mm
295
350
400
30
30
45
43
46
46
52
56
56
60
68
78
ØJ NxM R°125
145
160
180 45
210
240
295
355
410
30
45
90
30
45
90
30
45
NxM R°ØJ125
145
160
180
210
240
45
45
90
45
90
45
Weight(kg)
CL150 PN10 PN16
4x5/8"-11UNC-2B
4X5/8"-11UNC-2B
4X5/8"-11UNC-2B
8X5/8"-11UNC-2B
8x3/4"-10UNC-2B
8x3/4"-10UNC-2B
12x7/8"-9UNC-2B
12x7/8"-9UNC-2B
8x3/4"-10UNC-2B
8xM20
12xM20
12xM20
4xM16
*4xM16
8xM16
8xM16
8xM20
8xM16
4xM16
*4xM16
8xM16
8xM16
8xM20
12xM20
12xM24
12xM24
8xM16
Figure 03. BFV-701 Cross-sectional
www.terofox.com17 18
ProductsDouble Flange Type Concentric Resilient Seated Series Butterfly Valve.
BFV-702V series (BFV-702V / 712V / 722V)
Valve design in compliance with API609.
Face to face in accordance with EN558 series13.
Vulcanized seat is Terofox standard for double flange type.
Size range: DN50~DN2000.
Working Pressure
Resilient seated + Metal disc2”~12” (DN50~DN300)
14”~24” (DN350~DN600)
230 psi (16 Bar)
150 psi (10 Bar)
Parts and material
Cast iron
Ductile Iron
Carbon Steel
Stainless Steel
Body
Disc
Stem
Seat
A126 Class B.
A536, A395 …
WCB,LCB …
CF8M, CF8, CF3M …
For other materials, please consult Terofox for your specific application
BIDIRECTIONAL BUBBLE-TIGHT SHUT-OFF (Closed position)
245 psi (16 Bar)Body
Part name Material
C95400, C95500, C95800 …
A536 Nickel plated
A536 Nickel plated
WCB Nickel plated
CF8M, CF8, CF3M …
2507, 2205 …
Aluminum Bronze
Coated Ductile Iron
Nylon Coated Ductile Iron
Carbon Steel
Stainless Steel
Duplex Stainless Steel
410 Stainless Steel
431 Stainless Steel
304 Stainless Steel
316 Stainless Steel
NR
NBR (BUNA-N)
EPDM
NEOPRENE
CSM (HYPALON)
FKM (VITON)
PTFE
Figure 04. BFV-702V Cross-sectional
2” ~ 2-1/2” (DN 50 ~ DN 65)
3” ~ 8” (DN 80 ~ DN 200)
10” ~ 12” (DN 250 ~ DN 300)
14” (DN350) 16” ~24” (DN 400 ~ DN600)
Lug Type Shapeagainst Size
www.terofox.com19 20
BFV-73T0 / BFV-73T1 / BFV-73T3 PTFE Lining Concentric Butterfly Valves.BFV-74T0 / BFV-74T1 / BFV-74T3 PTFE Lining Concentric Butterfly Valves With Slim-Disc.
T series
Valve design in compliance with API609 / EN 593.
Face to face in accordance with API 609 category A / EN 558 series20.
Size Range : DN50~DN900
Figure 06. BFV-74T3 Exploded View
U-Section Type Concentric Resilient Seated Series Butterfly Valve
BFV-703 series
U-section type design in compliance with EN 593.
Face to face in accordance with API 609 category A / EN 558 series20.
Size range : DN50~DN2000
Figure 05. BFV-703
PTFE seats and encapsulated discs are molded from pure virgin PTFE material
(thickness 3mm) providing optimum protection against permeation of the line media
and excellent corrosion resistance.
www.terofox.com21 22
Figure 07. BFV-74T3 Cross-sectional
DISC: The PTFE lining disc has 3 mm minimum
thickness of pure, virgin PTFE encapsulated
over Stainless Steel.
SEAT DESIGN: The seat design reduces seating unseating
torque-and minimizes wear on the contacting
parts. Curvatures machined into the inner
seat area minimize contact forces between
the disc and seat as the disc approaches, or
opens from, the closed position. This unique
seat geometry permits lower torques and
reduces seat wear.
FLANGE LOCATING HOLES: Locating holes in the wafer version provide
quick and precise alignment during valve
installation eliminating disc interference with
adjacent pipe I.D.
BODY: 2-pc wafer design or lug style; epoxy coated.
NECK: An extended neck design in all valve sizes
allows 2” of piping insulation and provides
easy access for mounting actuators.
TOP STEM BUSHING: A top stem bushing, retained by a stainless steel
ring, is provided to absorb actuator side thrusts
and is acetal as standard or PTFE as an option.
The bushing assures the correct interaction
between the upper shaft and the lower shaft
while ensures the smooth running of the shaft.
SEAL CAPSULE(SECONDARY SEAL): This seal capsule fully isolates the valve body and
stem from the line media. The Seal Capsule is made
of a virgin PTFE enclosing the internal energizer.
The capsule fits into grooves machined in the upper
and lower disc hubs. When compressed between the
disc and seat during assembly, the capsule becomes
energized, exerting both upward and downward
pressure on disc and seat surfaces.
PRIMARY SEAL: The primary seal is achieved by an interference fit
between the extra wide disc hubs and contoured seat.
Disc spring, two sets for a group, is a state of
compressive deformation in the body. It will impose
elastic force on the press sleeve, compact the O-ring
and seat, improve axial sealing, then provided the
bearing stress for the seat and disc, to cover the
shortage of elasticity about PTFE seat.
1./
7./
8./
9./
2./
3./
4./
5./
SEAT ENERGIZER: A resilient seat energizer extends completely
around the seat, including the disc hub; and
provides uniform force sufficient for bubble
tight shut off.
6./
1
5
6
7
8
9
3
4
2
Dovetail Type (Soft Back Seat) Concentric Resilient Seated Series Butterfly Valve.
D series (BFV-700D / 701D ; BFV-710D / 711D)
Valve design in compliance with API609 / EN 593.
Face to face in accordance with API 609 category A / EN 558 series20.
Size range : DN50~DN600
Parts and material
Cast iron
Ductile Iron
Carbon Steel
Stainless Steel
Body
Disc
Stem
Seat
A126 Class B.
A536, A395 …
WCB,LCB …
CF8M, CF8, CF3M …
For other materials, please consult Terofox for your specific application
Part name Material
C95400, C95500, C95800 …
A536 Nickel plated
A536 Nickel plated
WCB Nickel plated
CF8M, CF8, CF3M …
2507, 2205 …
Aluminum Bronze
Coated Ductile Iron
Nylon Coated Ductile Iron
Carbon Steel
Stainless Steel
Duplex Stainless Steel
410 Stainless Steel
431 Stainless Steel
304 Stainless Steel
316 Stainless Steel
NR
NBR (BUNA-N)
EPDM
NEOPRENE
CSM (HYPALON)
FKM (VITON)
2”2-1/2”
3”4”5”6”8”10”12”14”16”18”20”24”
(inch) (mm) ΔP 6 bar ΔP 10 bar ΔP 16 bar ΔP 6 bar ΔP 10 bar ΔP 16 bar506580
100125150200250300350400450500600
121421355590
16527441052672296812912018
1316233961
100183304455584802107514312242
1418244266
109204343521663899120115202443
1417244174
1582043625507891083145119363026
1519274682
1752274026118771203161221513362
1522295390
20525244470810301388189824513941
SEAT: Soft back seat design as known as dovetail type seat which completely encapsulates and isolates the body isolating line medium and no flange gaskets required. Dynamics of seat based on being installed between two flanges, making seat subject to distortion during installation.
DISC: Standard disc (with pin) and pinless disc both available for soft back seat. Pinless disc are operated in specific and stem and seal as picture. If it is standard disc, then the standard stem and seal would be the same as page 11.
WAFER / LUG BODY: 1-pc design body easy assembly andmaintenance. Cast iron, ductile iron and carbon steel body with epoxy powder coating.
Figure 08. BFV-710D Explode View
1./
2./
3./
STEM: Specific stem design for pinless disc, which can fix stem and body without pin.
4./
SEAL RING: Seal ring here is specific for soft back seat, in order to strengthen the seal between stem and body.
5./
www.terofox.com23 24
Technical ReferenceTorque (value based on pins design)
Table 01. Torque Value (N.m) at Diacritical Working Pressure within Water and Air
Gear box data
Size Air fluidWater fluid
Ø
G
C
ACLOSE
OPE
N
B
n-M
D
E F
D1
ValveSize
2”~6”
8”~10”
12”~14”
45
63
78
128
179
200
105
150
164
92
115/125
14/150
57
89/102
10/125
36
46
46
A B C D D1 E F ØG n-M
unit:mm
OutputTorque
GearRatio
Diameter of stem position
(Max.)28
34
36
226
313
307
4-M6
4-M12/M10
4-M12/M10
150
300
300
150
500
1200
24:1
32:1
50:1
Ø20
Ø28
Ø35
1
1
4
5
3
2
www.terofox.com25 26
2”2-1/2”
3”4”5”6”8”
10”12”14”16”18”20”24”
(inch) (mm) 10°506580
100125150200250300350400450500600
0.10.20.30.50.8234568111422
20°581217294589
151234338464615971
1,222
30°122022366195
188320495715983
1,3021,6742,587
40°24373978
133205408694
1,0721,5492,1302,8223,6285,605
50°456570
139237366727
1,2371,9112,7613,7975,0286,4659,989
60°6498
116230392605
1,2022,0473,1624,5686,2828,320
10,69816,528
70°90
144183364620958
1,9033,2405,0057,2309,942
13,16816,93126,157
80°125204275546930
1,4372,8544,8597,507
10,84414,91319,75225,39639,236
90°135220302600
1,0221,5793,1365,3408,25011,91716,38821,70527,90843,116
Technical ReferenceCV (value based on pins design)
Table 02. CV Value chart (Flow in GPM at 1PSI P at Diacritical)
Material Applicable for Medium
Size Disc Opening Angles
GASOLINE
FRESH WATER
SEA WATER
STEAM
HYDROCHLORIC ACID (10%)
SULFURIC ACID (30%)
NITRIC ACID (10%)
SODIUM HYDROXIDE (30%)
ALCOHOL
×
○
◎
○
◎
○
×
◎
×
◎
○
○
×
○
△
×
◎
○
×
◎
◎
◎
◎
○
○
◎
◎
○
○
◎
○
◎
◎
×
○
×
◎
○
○
△
○
△
△
×
○
×
○
◎
○
◎
◎
○
◎
×
Medium Temperature -10 ~ 85˚C -10 ~ 80˚C -10~120˚C -5~90˚C -10~200˚C -10~135˚C
Material
CV
va
lue
0%0 10
0,0%10,0%
20,0%30,7%
40,14%
50,24%
60,39%
70,61%
80,91%
90,100%
20 30 40 50 60 70 80 90
10%
20%
30%
40%
50%
60%
70%
80%
90%
100%
Disc opening degree (˚)
NR NBR EPDM CR FKM CSM
◎ EXCELLENCE RESISTANT ○ GOOD RESISTANT △ CONDITIONALLY RESISTANT × NOT RECOMMENDED
For more application corrosion data, visit www.terofox.com/material.aspx.For reference only
543210
543210
543210
4
3
2
1
0
543210
543210
NR NBR EPDM
CR(Chloroprene Rubber) CSM(Hypalon) VITON(FKM)
MECHANICALSTRENGTH
ABRASIONRESISTANCE
OILRESISTANCE
ELEMENTRESISTANCE
ACID ANDBASE
RESISTANCE
HIGHTEMPERATURERESISTANCE
LOWTEMPERATURERESISTANCE
FIRERESISTANCE
MECHANICALSTRENGTH
ABRASIONRESISTANCE
OILRESISTANCE
ELEMENTRESISTANCE
ACID ANDBASE
RESISTANCE
HIGHTEMPERATURERESISTANCE
LOWTEMPERATURERESISTANCE
FIRERESISTANCE
MECHANICALSTRENGTH
ABRASIONRESISTANCE
OILRESISTANCE
ELEMENTRESISTANCE
ACID ANDBASE
RESISTANCE
HIGHTEMPERATURERESISTANCE
LOWTEMPERATURERESISTANCE
FIRERESISTANCE
MECHANICALSTRENGTH
ABRASIONRESISTANCE
OILRESISTANCE
ELEMENTRESISTANCE
ACID ANDBASE
RESISTANCE
HIGHTEMPERATURERESISTANCE
LOWTEMPERATURERESISTANCE
FIRERESISTANCE
MECHANICALSTRENGTH
ABRASIONRESISTANCE
OILRESISTANCE
ELEMENTRESISTANCE
ACID ANDBASE
RESISTANCE
HIGHTEMPERATURERESISTANCE
LOWTEMPERATURERESISTANCE
FIRERESISTANCE
MECHANICALSTRENGTH
ABRASIONRESISTANCE
OILRESISTANCE
ELEMENTRESISTANCE
ACID ANDBASE
RESISTANCE
HIGHTEMPERATURERESISTANCE
LOWTEMPERATURERESISTANCE
FIRERESISTANCE
Figure 09. Flange Faces
STEP 01CLEAN FACES!
Must make sure the pipe flange faces are clean. Any foreign material such as scars, welding slag, metal chips, etc., can damage the seat or disc and make disc blocked.
www.terofox.com27 28
Figure 11. Disc Position
Figure 10. Flanges Distance
Figure 12. Bolts Tighten Sequence
STEP 02LEAVE ENOUGH SPACE!
Leave a space between flanges so that valve can be easily inserted or removed, and avoiding damaging the seat.
STEP 03OPEN COMPLETELY!
Place the valve between the flanges and center it, and then span the valve body with all flange bolts, but do not tighten the bolts. Carefully open the disc to the full open position, making sure the disc does not hit the pipe. Assembling the butterfly vales in closed position would deform the seat.
STEP 04TIGHTEN BOLTS EQUALLY!
Tighten bolts gradually till flanges are in contact with valve body, and must tighten equally in sequence as Figure 21.
Installation & Maintenance
Terofox butterfly valves allow installation at any angle on the pipeline.
Installation Precaution
1.The valve shall be installed in proper position to ensure convenient operation, maintenance, and
replacement
2.In case of negligence in medium flow direction in pipe line, valve design allows installation in
double way.
3.Before/OFF installation, the butterfly valve should be stored in warehouse. Proper storage prevents
the valve from moisture while stored; the disc is suggested to be kept open at an angle of 15 degree.
4.Prior to installation, the following processes should be completed:
(1)Pay extra attention to check if the valve operation condition is in line with the technical
specification and requirements.
(2)Clean the disc sealing area and body sealing thoroughly. Disc should remain closed before
cleaning.
(3)Make sure the handle is firmly connected to the flange and stem.
5.As mounting the butterfly valve on pipeline, the load for tightening connection bolts should be
uniformed.
6.After installation, the disc must be opened in the case of the in-line strength pressure test being
carried out.
7.After commissioning, the valve should be examined regularly. Suggested regular checkups:
(1)Whether the valve seat and ‘O’ sealing ring have been damaged.
(2)Check the sealing effects of the disc sealing area.
(3)After the valve was examined and assembled, no scuffing happens at the time of on-off rotation.
(4)After the valve was examined and assembled, the sealing test should be carried out as the
introduction.
(5)After each examination, detailed records should be filed for future reference.
CORRECT! WRONG!
CORRECT! WRONG!
CORRECT! WRONG!
Figure 14. Unnecessary Gaskets
Figure 13. Incorrectiy Welding
Figure 15. Flange Rating
NOTEWELDING BEFORE INSTALLED!
Do not weld flanges near by the installed butterfly valve, so that must weld the pipe before installation or remove the valve before welding. Lastly must clean carefully the welding slag to avoid damaging the seat.
NOTEDO NOT USE GASKETS!
The installation of a gasket between the flange and the sleeve results in an excessive deformation of the latter; this has the effect of preventing the closure of the disc, or block if it is already in the closed position.
NOTEDO NOT USE UNSUITABLE FLANGES!
The installation of unsuitable flanges would jam the disc or create turbulences in the pipe.
www.terofox.com29 30
Figure 17. Without Flange in the End Figure 18. With A Flange in the End
NOTEHORIZONTAL AXIS INSTALLATION!
It would be better to install big size butterfly valve with the stem horizontally. In case of used in services with powders or muddy fluids, valve must be installed with the stem in horizontal position to allow sediments to flow easily at opening.
NOTEEND PIPING INSTALLATION !
When valve installed at the end of piping:
Normally for Dovetailseat type and Vulcanizedseat type, we caninstalling withoutend flange.
Installing with a blind flange in the end to secure tightness at max pressure ( 16 bar )and all types butterfly valves.
Vertical axis installing for general installation.
Horizontal axis installing for particular fluids or big size valves.
CORRECT!
WRONG!
WRONG!
WRONG!
Figure 16. Installation Axis
www.terofox.com31 32
50
65
80
100
125
150
200
250
300
350
400
450
500
600
4
4
8
8
8
8
8
12
12
16
16
20
20
20
4
4
8
8
8
8
12
12
12
16
16
20
20
20
130
140
140
150
150
165
175
185
195
195
220
250
290
324
130
140
140
150
150
165
175
185
195
195
220
250
290
324
4 x 2
4 x 2
8 x 2
8 x 2
8 x 2
8 x 2
8 x 2
12 x 2
12 x 2
16 x 2
16 x 2
20 x 2
20 x 2
20 x 2
4 x 2
4 x 2
8 x 2
8 x 2
8 x 2
8 x 2
12 x 2
12 x 2
12 x 2
16 x 2
16 x 2
20 x 2
20 x 2
20 x 2
M16 x 40
M16 x 45
M16 x 45
M16 x 50
M16 x 50
M20 x 50
M20 x 55
M20 x 60
M20 x 65
M20 x 65
M24 x 75
M24 x 80
M24 x 90
M27 x 100
M16 x 40
M16 x 45
M16 x 45
M16 x 50
M16 x 50
M20 x 50
M20 x 55
M24 x 60
M24 x 65
M24 x 65
M27 x 75
M27 x 80
M30 x 90
M33 x 100
M16 x 110
M16 x 120
M16 x 120
M16 x 130
M16 x 130
M20 x 140
M20 x 150
M20 x 160
M20 x 170
M20 x 170
M24 x 190
M24 x 220
M24 x 260
M27 x 290
M16 x 110
M16 x 120
M16 x 120
M16 x 130
M16 x 130
M20 x 140
M20 x 150
M24 x 160
M24 x 170
M24 x 170
M27 x 190
M27 x 220
M30 x 260
M33 x 290
(inch) Qty Dia x L1 Qty Dia x L1 Qty Dia x L1Length Qty Dia x L1 Length
Stud Bolt for Type of wafer valve Hexagon Heed Bolt for Type of Lug Stud Bolt for Type of wafer valve Hexagon Heed Bolt for Type of Lug
Bolts & Nuts Selection
MaintenanceEN 1092-1 PN10/16 ISO7005 PN10/16
ASME B 16.5 150LB JIS B2220 10K
SizePN 10 PN 16
50
65
80
100
125
150
200
250
300
350
400
450
500
600
4
4
8
8
8
8
8
12
12
16
16
20
20
20
4
4
8
8
8
8
12
12
16
16
16
20
20
24
130
140
140
150
150
165
175
185
195
195
220
250
290
324
130
140
140
150
150
165
175
185
195
195
220
250
290
324
4 x 2
4 x 2
4 x 2
8 x 2
8 x 2
8 x 2
8 x 2
12 x 2
12 x 2
12 x 2
16 x 2
16 x 2
20 x 2
20 x 2
4 x 2
4 x 2
8 x 2
8 x 2
8 x 2
8 x 2
12 x 2
12 x 2
16 x 2
16 x 2
16 x 2
20 x 2
20 x 2
24 x 2
M16 x 40
M16 x 45
M16 x 45
M16 x 50
M16 x 50
M20 x 50
M20 x 55
M22 x 60
M22 x 65
M22 x 65
M24 x 75
M24 x 80
M24 x 90
M33 x 100
5/8” x 110
5/8” x 120
5/8” x 120
3/4” x 130
3/4” x 130
3/4” x 140
3/4” x 150
7/8” x 160
7/8” x 170
1” x 170
1” x 190
9/8” x 220
9/8” x 260
5/4” x 290
5/8” x 40
5/8” x 45
5/8” x 45
3/4” x 50
3/4” x 50
3/4” x 50
3/4” x 55
7/8” x 60
7/8” x 65
1” x 65
1” x 75
9/8” x 80
9/8” x 90
5/4” x 100
M16 x 110
M16 x 120
M16 x 120
M16 x 130
M16 x 130
M20 x 140
M20 x 150
M22 x 160
M22 x 170
M22 x 170
M24 x 190
M24 x 220
M24 x 260
M30 x 290
(inch) Qty Dia x L1 Qty Dia x L1 Qty Dia x L1Length Qty Dia x L1 Length
Stud Bolt for Type of wafer valve Hexagon Heed Bolt for Type of Lug Stud Bolt for Type of wafer valve Hexagon Heed Bolt for Type of LugSize
150 LB 10 K
1. Before the maintenance, always advise the maintenance personnel that the proper eye, head and whole
body protection always be utilized.
2. Before the maintenance, always make sure the pressure is released safely by partly opening the valve.
3. Prior to the maintenance, flush the butterfly valves and the pipe lines attached and make sure that no
(dangerous) residues are left.
4. Ensure that the installation, together with pressure containing parts in depressurized and secured.
5. It is impossible to predict the frequency of the maintenance interval. The maintenance interval is dependent
upon several factors which are not foreseeable by the manufacturer.
6. Operate the valve from fully open to fully close to assure its operation. Or always check the direction mark
on the lever or gear box operation.
7. Check flange bolting for any evidence of loose and make adjustment if necessary.
8. Inspect the valve and the surrounding area for previous or existing leakage at flange faces or shaft
connections.
9. Check piping and/or wiring to actuators and related equipment for looseness and correct as needed.
The following periodic preventative maintenance practices are recommended for all center line butterfly valves.
Figure 19. Bolt Connection of Wafer / Lug Type Butterfly Valve
2 Thread pitch x 2 + Nut width x 2+ Washer width x 2+ Flang width x 2+ Valve face-to-face = Length
Washer width + Flang width+ Min. Bolt Engagement Equal to Bolt Diameter= L1
Nut width
Washer width
Flang width
Valve face-to-face
www.terofox.com33 34
Any further questions, please contacts our service center [email protected] or
call us at+886-4-2265-5306
Troubleshooting
PROBLEMS SOLUTIONS
Leakagefrom stem
Leakage from seat(internal leak)when closed
The disc doesnot move
The valve does notrespond to
input signals.(if the valve operated
by actuators.)
Hard to openthe valve
The valveflow is low.
Check whether the seats are damaged.Find if the stem O-rings are damaged.Check whether any deviation between the valve and the pipe flange.
Check whether the disc can open and close fully.Check whether the operator and the disc act synchronously.If you suspect any damage to disc or seat, disassemble the valve. Visually check disc and seat for damages, and replace them if any damage is found.
Check the air pressure supplied to the valve and the condition of the filter regulator.Check the operations of accessories such as solenoid valve and air operated valve.Disassemble the valve and check whether there are any foreign obstructions in disc and seat.Check the design temperature and actual line temperature.Remove the actuator and try to operate the actuator only.
Check the air pressure supplied to the valve.Check the voltage of the solenoid valve.Apply the correct air pressure to the actuator to see whether it works properly or leaks. (If it leaks, fasten the cylinder cover bolts.)
Disassemble the valve and check whether there are any foreign obstructions, and remove them if found.Clean and grease actuator if actuator parts are corroded.
Check whether there are any foreign obstruction in the upstream pipe.Check whether the valve operates with the maximum stroke.