type nz/nzos - emerson · type nz/nzos pressure regulator 33 1. introduction type nz is a...

Type NZ/NZOSPressure Regulator Manual

V2016.07

D10

3764

X01

2

Type NZ/NZOS Pressure Regulator

22

Contents

1. Introduction ..................................................................................................3

2. Features and Benefits .....................................................................................3

3. Specifications ................................................................................................3

4. Principle of Operation ....................................................................................4

5. Dimensions and Weight .................................................................................6

6. Installation ....................................................................................................7

7. Operation ......................................................................................................8

8. Maintenance ................................................................................................10

9. Ordering Guide ............................................................................................11

! WARNING

Failure to follow the instructions in this manual in selection, installation, operation and maintenance of this equipment could result in an explosion, fire and/or chemical contamination causing property damage and personal injury or death.

Jeon Regulators must be installed, operated and maintained in accordance with federal, state and local codes, rules and regulations and by strictly following instructions by Emerson Process Management Asia Pacific Pte Ltd, Regulator Technologies.

Installation, operation and maintenance procedures performed by non-qualified personnel may result in an unsafe operation, resulting in equipment damage or personal injury. Use qualified personnel when installing, operating and maintaining Type NZ Regulator.


33

1. IntroductionType NZ is a pilot-operated pressure regulator designed for high pressure transmission, power plant skids, city gate stations, large capacity gas distribution systems, CNG stations, industrial skids and commercial installations. It provides accurate and reliable pressure control throughout the flow range. This regulator may be used with natural gas, LP-Gas and other non-corrosive gases.

Type NZOS is Type NZ with an integral slam-shut device, which can provide either overpressure protection or overpressure and underpressure protection by completely shutting off the flow of gas to the downstream system

2. Features and Benefits

3. SpecificationsNZ SeriesMaximum Inlet Pressure: 102 bar / 1479 psigOutlet Pressure Range: 0.1 to 65 bar / 1.45 to 942 psigMinimum Operating Differential Pressure: For DN 25 and 50 / 1 and 2 in. body sizes only: 0.5 bar / 7.25 psig For DN 80 and 100 / 3 and 4 in. body sizes only: 1.2 bar / 17.4 psig For DN 150 / 6 in. body size only: 1.5 bar / 21.8 psigMaximum Operating Differential Pressure: For DN 25, 50, 80, 100 and 150 / 1, 2, 3, 4 and 6 in. body sizes:

40 bar / 580 psig

NZOS SeriesMaximum Inlet Pressure: 51 bar / 740 psigOutlet Pressure Range: 0.1 to 40 bar / 1.45 to 580 psigMinimum Operating Differential Pressure: For DN 25 and 50 / 1 and 2 in. body sizes only: 0.5 bar / 7.25 psig For DN 80 and 100 / 3 and 4 in. body sizes only: 1.2 bar / 17.4 psiMaximum Operating Differential Pressure: For DN 25, 50, 80, 100 and 150 / 1, 2, 3, 4 and 6 in. body sizes:

40 bar / 580 psig

Flow Coefficient: See Table 1

Accuracy Class (Regulating Device): Up to AC 1

Response Time: ≤ 1 second

• Regulator with Integral Strength — Provides maximum safety with all parts rated for maximum pressure.

• Two Path Control Design — Faster response and better accuracy.

• Patented Pilot Design — Reduces the possibility of freezing and blockage, hence increasing uptime.

• Bubble Tight Shut-off — Safe and reliable shut off with no gas leakage downstream.

• Unique Seat Design — Better protection for soft parts, reducing frequency of service.

• Top Entry — Allows the regulator to be maintained in-line, hence reducing the maintenance time significantly.

• Suitable for Monitor and Active Configuration — Provides one additional level of safety in operation.

• Option of Silencer — Ensures that the noise generated remains within permissible limits.

• Option of Travel Indicator — Indicates regulator operation and approximate opening in real time.

• Option of Integral Slam-shut Device — Type NZOS with an integral slam-shut device for overpressure or overpressure and underpressure protection.

• Option of Linear transducer — Connected with indicator, represent valve opening position and correct operating information.

• Option of Stainless Steel Fitting

• Option of Cg: 200 for DN 25 size

Accuracy Class (Slam Shut): Up to AG 1

Lockup Pressure Class: Up to SG 5

Temperature Capability: -20 to 65°C / -4 to 149°F

Body Size:NZ Series: DN 25, 50, 80, 100 and 150 / 1, 2, 3, 4 and 6 in.NZOS Series: DN 25, 50, 80 and 100 / 1, 2, 3 and 4 in.

End Connection:NZ Series: ANSI 150, ANSI 300 and ANSI 600NZOS Series: ANSI 150 and ANSI 300. Specifications of slam-shut device per Type JEQ Manual.Materials of Construction

Main ValveBody: Cast SteelBonnet and Casing: Forged steelDiaphragm and Disk: Nitrile (NBR)Sleeve and Stem: Stainless steel

Pilot Body: Carbon steelSpring Case: Cast steelDiaphragm and Rubber Disk: Nitrile (NBR)Alternate materials available on request

Table 1. Types NZ and NZOS Flow Coefficient

TYPEFLOW

COEFFICIENTWIThOUT SILENCER WITh SILENCER

DN 25 / 1 In. DN 50 / 2 In. DN 80 / 3 In. DN 100 / 4 In. DN 150 / 6 In. DN 25 / 1 In. DN 50 / 2 In. DN 80 / 3 In. DN 100 / 4 In. DN 150 / 6 In.

NZCg 200 500 1845 4400 7505 14,650 200 470 1600 3670 6120 11,420

C1 30 34 35 33 32 28 30 36 35 33 32 29

NZOSCg 200 500 1770 4200 7410

- - - -200 470 1550 3600 5810

- - - -C1 30 34 34 34 33 30 32 35 33 34


44

Capacity Information

The capacities at outlet pressure settings at any inlet pressure can be calculated using the formulas below:

a) For sub-critical pressure drops (Pi - Po ) ≤ 0.5 (Pi ) :

13.57 Pi 3417 Pi - Po Q = ___________________ • Cg •

_____ • sin (_______ _________ ) deg √d(tu + 273) 2 C1 √ Pi

b) For critical pressure drops (Pi - Po ) > 0.5 (Pi ) :

13.57 Pi Q = ___________________ • Cg •

______

√d(tu + 273) 2

where:

Q = Flow rate, SCMH

Pi = Inlet pressure, Absolute bar (i.e., Gauge Pressure Pu + Atmospheric Pressure Pb)

Po = Outlet pressure, Absolute bar (i.e., Gauge Pressure Pd + Atmospheric Pressure Pb)

Cg = Flow coefficient

d = Relative Density of gas, refer to Table 2

tu = Temperature of gas at inlet, °C

C1 and Cg: Refer to Table 1

4. Principle of OperationType NZ pilot-operated pressure regulator uses inlet pressure as the operating medium and reduces it through pilot operation to load the actuator diaphragm. The loading pressure can regulate the outlet pressure by moving the sleeve towards or away from the seat.Any change in the outlet pressure can alter the balance of the outlet pressure and the control spring in the second stage of pilot. The pilot diaphragm is between the outlet pressure chamber and the spring. When outlet pressure decreases, the spring pushes the diaphragm downwards. The diaphragm moves the pilot disk away from the orifice increasing the loading pressure. The loading pressure pushes the main diaphragm up, increasing the distance between the seat and the sleeve. This movement allows more flow to pass through the main valve’s orifice. When the outlet pressure increases, the pilot reduces the loading pressure, moving the sleeve closer to the seat. The flow rate passing through the main valve decreases and maintains the desired pressure at the outlet.

Pressure from the system is sensed through control line into the manometric sensing device (BMS). The device will transmit the pressure fluctuations to the mechanism box (BM). If these fluctuations reach the set pressure of the sensing device, it will activate the tripping mechanism in the BM and cause the valve to slam shut. After Type NZOS has closed, it must be manually reset before it can be put back in service. To reset the power stage, use the handle hanging outside the BM and rotate it clockwise slowly.

Monitoring SystemsMonitoring regulation is overpressure protection by containment; therefore, there is no relief valve to continuously vent gas to the atmosphere. When the working regulator fails to control the pressure, a monitor regulator installed in series, which has been sensing the downstream and control pressure, goes into operation to maintain the downstream pressure at a slightly higher than normal pressure. During an overpressure situation, monitoring keeps the fluid gas in line. Also, testing is relatively easy and safe. To perform a periodic test on a monitoring regulator, increase the outlet set pressure of the working regulator and watch the outlet pre ssure to determine if the monitoring regulator takes over at the appropriate outlet pressure.

GAS RELATIVE DENSITY “d”

Air 1

Natural gas 0.6

Butane gas 2.01

Propane gas 1.53

Nitrogen 0.97

Table 2. Relative Density of Gas

Figure 1. Type NZ Operational Schematic Figure 2. Type NZOS Operational Schematic

INLET PRESSURE INLET PRESSURE

OUTLET PRESSURE OUTLET PRESSURE

LOADING PRESSURE LOADING PRESSURE

PILOT SUPPLY PRESSURE PILOT SUPPLY PRESSURE

ATMOSPhERIC PRESSURE ATMOSPhERIC PRESSURE

TYPE JP PILOT:L – LOADINGB – SENSINGS – SUPPLY


TYPE JP PILOT

TYPE NZ MAIN VALVE

BL

S

BL

S


55

Figure 3. Schematic for Type NZ Monitor with Type JPLC or JPHC Pilot

Figure 4. Schematic for Type NZ Monitor with Type JPLO or JPHO Pilot

INLET PRESSURE

OUTLET PRESSURE

LOADING PRESSURE

PILOT SUPPLY PRESSURE

ATMOSPhERIC PRESSURE

TYPE JP PILOT:L – LOADINGA – BALANCERB – SENSINGS – SUPPLY

INLET PRESSURE

OUTLET PRESSURE

LOADING PRESSURE

PILOT SUPPLY PRESSURE



Wide-Open Monitoring SystemsThere are two types of wide-open monitoring systems: upstream and downstream. The difference between upstream and downstream monitoring is that the functions of the regulators are reversed. Systems can be changed from upstream to downstream monitoring and vice-versa, by simply reversing the setpoints of the two regulators. The decision to use either an upstream or downstream monitoring system is largely a matter of personal preference or company policy.In normal operation of a wide-open configuration, the working regulator controls the system’s outlet pressure. With a higher outlet pressure setting, the monitor regulator senses a pressure lower than its setpoint and tries to increase outlet pressure by going wide-open. If the working regulator fails, the monitoring regulator assumes control and holds the outlet pressure at its outlet pressure setting.

Working Monitoring SystemsIn a working monitoring system, the upstream regulator requires two pilots and it is always the monitoring regulator. The additional pilot permits the monitoring regulator to act as a series regulator to control an intermediate pressure during normal operation. In this way, both units are always operating and can be easily checked for proper operation.In normal operation, the working regulator controls the outlet pressure of the system. The monitoring regulator’s working pilot controls the intermediate pressure and the monitoring pilot senses the system’s outlet pressure. If the working regulator fails, the monitoring pilot will sense the increase in outlet pressure and take control.

TYPE NZ MONITOR

TYPE JPLC/JPHC PILOT

AL

B

S

L B

S

TYPE JPLO/JPHO PILOT

TYPE NZ WORKING

TYPE NZ MONITOR

TYPE JPLO/JPHO PILOTTYPE JPLO/JPHO PILOT

L

S

B L

S

B

TYPE NZ WORKING

WORKER PILOT

MONITOR REGULATOR WORKING REGULATOR

MONITOR PILOT

TYPE NZ WORKING MONITOR SYSTEM OPERATIONAL SChEMATIC

WORKING REGULATOR

WORKER PILOT

MONITOR PILOT

MONITOR REGULATOR

TYPE NZOS WORKING MONITOR SYSTEM OPERATIONAL SChEMATICPILOT SUPPLY PRESSURE


INTERMEDIATE PRESSURE

INLET PRESSURE

OUTLET PRESSURE

LOADING PRESSURE


66

W

D 22 / 0.9 EE E

140 / 5.5

h

h

LE

LL

LE

SINGLE REGULATOR MONITOR REGULATOR OF WORKING MONITOR SYSTEM

5. Dimensions and Weight

Figure 5. Type NZ Regulator Dimensions

Figure 6. Type NZOS Regulator Dimensions

mm / In.

Table 3. Type NZ Regulator Dimensions and Weight

Table 4. Type NZOS Regulator Dimensions and Weight

MAIN VALVE BODY SIZE END

CONNECTIONWEIGhT L LE

W(Single

Regulator)

W(Monitor

Regulator)

h (Without indicator)

h (With indicator)

h (With

transducer)

DN In. kg lbs mm In. mm In. mm In. mm In. mm In. mm In. mm In.

25 1

ANSI 150 31 68 184 7.2 290 11.4 400 15.7 470 18.5 284 11.2 352 13.9 527 20.8

ANSI 300 32 71 197 7.8 290 11.4 400 15.7 470 18.5 292 11.5 360 14.2 535 21.1

ANSI 600 42 93 210 8.3 310 12.2 420 16.5 490 19.4 292 11.5 360 14.2 535 21.1

50 2

ANSI 150 41 90 254 10.0 290 11.4 400 15.7 470 18.5 317 12.5 385 15.2 560 22.1

ANSI 300 44 97 267 10.5 290 11.4 400 15.7 470 18.5 324 12.8 392 15.4 567 22.3

ANSI 600 55 121 286 11.3 310 12.2 420 16.5 490 19.4 324 12.8 392 15.4 567 22.3

80 3

ANSI 150 76 168 298 11.7 360 14.2 470 18.5 540 21.3 402 15.8 480 18.9 645 25.4

ANSI 300 81 179 317 12.5 360 14.2 470 18.5 540 21.3 411 16.2 489 19.3 654 25.8

ANSI 600 101 223 337 13.3 382 15.0 492 19.4 562 22.1 411 16.2 489 19.3 654 25.8

100 4

ANSI 150 102 225 352 13.9 360 14.2 470 18.5 540 21.3 466 18.3 544 21.4 709 27.9

ANSI 300 110 243 368 14.5 360 14.2 470 18.5 540 21.3 479 18.9 557 21.9 722 28.5

ANSI 600 135 298 394 15.5 382 15.0 492 19.4 562 22.1 489 19.3 567 22.3 732 28.5

150 6

ANSI 150 204 450 451 17.8 470 18.5 580 22.8 650 25.6 595 23.4 673 26.5 838 33

ANSI 300 222 489 473 18.6 470 18.5 580 22.8 650 25.6 614 24.2 692 27.2 857 33.8

ANSI 600 307 677 508 20.0 500 19.7 610 24.0 690 27.2 633 24.9 711 28.0 876 34.5

VALVE BODY SIZE PRESSURE

RATEWEIGhT L LE

W(Single

Regulator)

W(Monitor

Regulator)

h (Without Indicator)

h (With Indicator)

h (With Travel Transducer) D E

DN NPS kg lbs mm In. mm In. mm In. mm In. mm In. mm In. mm In.

25 1ANSI 150 51 113 184 7.2

290 11.4 400 15.7 470 18.5

562 22 630 24.8 770 30.3

Refer to Type JEQ manual

Refer to Type JEQ manual

ANSI 300 52 115 197 7.8

50 2ANSI 150 72 159 254 10.0

656 25.83 724 28.5 803 31.6ANSI 300 75 165 267 10.5

80 3ANSI 150 110 243 298 11.7

360 14.2 470 18.5 540 21.3

803 31.6 871 34.3 888 35ANSI 300 115 254 317 12.5

100 4ANSI 150 152 335 352 13.9

896 35.3 964 38 952 37.5ANSI 300 160 353 368 14.5

Note: All the weight in above table is for the NZOS Series with single manometric device type A (Φ162 / Diaphragm).


77

Note: Ensure that Type NZ and NZOS regulators are installed with the actuator on top. Installing in reverse position with the actuator below the pipeline level is strictly prohibited.

Inlet gas must be preheated to an appropriate temperature if the gas temperature after pressure regulator is expected to drop below 0°C / 32°F.

Before installing Type NZ, clean the pipeline system. Remove or isolate the regulator when the pipeline is undergoing pressure test or purging to avoid damage to the regulator.

1. Verify the pressure in the pipeline will be within the maximum pressure stated on the regulator nameplate.

2. Make sure that the flow direction of the pipeline matches the arrow stamped on the regulator.

Install a Filter and Slam Shut Valve and an Isolation Valve on the upstream of Type NZ regulator. The outlet pressure sensing point should be positioned at the outlet pipe of Type NZ regulator at a suitable distance, greater than 5 times of the diameter of the outlet pipe (DN). When outlet pressure is at or above 0.5 bar / 7.25 psig, gas velocity should not exceed 50 m/s. When outlet pressure is below 0.5 bar / 7.25 psig, gas velocity should not exceed 25 m/s. Refer to Figure 7.

Install a filter and isolation valve on the upstream of Type NZOS regulator. The outlet pressure sensing point should be positioned at the outlet pipe of Type NZOS regulator at a suitable distance, greater than 5 times of the diameter of the outlet pipe (DN). When outlet pressure is at or above 0.5 bar / 7.25 psig, gas velocity should not exceed 50 m/s. When outlet pressure is below 0.5 bar / 7.25 psig, gas velocity should not exceed 25 m/s. Refer to Figure 8.

3. After installation, carry out a leakage test using soap solution to ensure that all connections are well sealed.

6. Installation

Figure 7. Type NZ Regulator Installation

Figure 8. Type NZOS Regulator Installation

Installation, operation and maintenance performed by non-qualified personnel may result in unsafe operation, equipment damage or personal injury. Call a qualified personnel when installing, operating and maintaining the unit.

! WARNING

ISOLATION VALVE FILTER

SLAM SHUT VALVE

TYPE NZ REGULATOR

SENSING LINE

VENT VALVE

ISOLATION VALVE

>5 x DN

DN

>3 x DN

ISOLATION VALVE

FILTER

MONITOR REGULATOR WORKING

REGULATOR

WORKING PILOT

MONITOR PILOT

MONITOR PILOT

VENT VALVE

SLAM SHUT VALVE

ISOLATION VALVE

SENSING LINE

DN

>5 x DN

>3 x DN

Working Monitor System Installation

Type NZOS with Single BMS

ISOLATION VALVE

ISOLATION VALVE

VENT VALVE

SENSING LINE

TYPE NZOS REGULATOR

FILTER

DN

>5 x DN

>2 x DN

Type NZOS with Double BMS

ISOLATION VALVE

ISOLATION VALVE

VENT VALVE

SENSING LINE

TYPE NZOS REGULATOR

FILTER

DN>5 x DN

>2 x DN


88

7. Operation

1. Make sure that the filter and the isolation valve are properly installed at the inlet pipe of Type NZ regulator and the vent valve is closed.

2. Ensure that the slam-shut valve is open.3. Keep the outlet isolation valve slightly open. 4. Slowly open the inlet isolation valve.5. Keep in this position until the flow stabilizes.6. Fully open the inlet isolation valve first and then the outlet isolation valve slowly.

The regulator control spring is factory set at the set point specified in the order. If no setpoint is specified, the control spring is set at approximately the midpoint of the spring range. An initial adjustment may be required to achieve the desired pressure at site. If adjustment of the outlet pressure is required, close the Outlet Isolation Valve and slightly open the vent valve. Slowly open the Inlet Isolation Valve. Manually turn the adjusting screw on the pilot and monitor the downstream pressure to achieve the required pressure. If a wide-open monitor is installed, first, set the pilot of working regulator to a setpoint higher than the desired setpoint for the monitor pilot, second, adjust the monitor pilot to the desired monitor takeover pressure and then reduce the setpoint of working regulator to the desire valve. Control spring set of Type NZOS integrated slam-shut regulator refer to Type NZ. Slam-shut device set refer to Type JEQ manual.

1. Startup

2. Adjustment

Personal injury or equipment damage due to bursting of pressure-containing parts may result if this regulator is overpressured or installed where service conditions could exceed the limits specified in the manual as well as on the nameplate or where conditions exceed any rating of the adjacent piping or piping connections. To avoid such injury or damage, provide pressure-relieving or pressure-limiting devices to prevent service conditions from exceeding the limits. Check that the installation is in compliance with all applicable codes and regulations. Additionally, physical damage to the regulator could break the pilot off the main valve, causing personal injury and property damage due to bursting of pressure-containing parts. To avoid such injury and damage, install the regulator and pilot in a safe location.

A regulator may vent some gas to the atmosphere. Vented gas may accumulate in enclosed area and is susceptible to explosion and fire causing personal injury, death or property damage. Thus, vent the regulator to a remote and safe location away from air intakes or any hazardous area. The vent line or stack opening must be protected against condensation or clogging.

To avoid personal injury or property damage due to explosion or damage to regulator or downstream components during startup, release downstream pressure to prevent an overpressure condition on the diaphragm of the regulator.

In order to avoid an overpressure condition and possible equipment damage, pressure gauges should always be used to monitor pressures during startup.

Control Spring

RestrictorThe restrictor on the pilot controls the regulator’s proportional band droop and speed of response. The restrictor on the pilot should be adjusted carefully. The restrictor is normally set at the tightest mode till it can no longer be screwed in the clockwise direction. Observe extreme caution during unscrewing the restrictor so that it does not come out of the pilot body face.

In the event of hunting of the stable outlet pressure, unscrew the restrictor slowly in increment of 1/4 turn until pressure stabilizes, 2 turns at most.

! WARNING

! WARNING

ADJUSTING SCREW

CONTROL SPRING

RESTRICTOR

Table 5. Type NZ Regulator Outlet Pressure Range

PILOT TYPEOUTLET PRESSURE RANGE

SPRING COLOR SPRING PART NUMBERbar psig

JPLO and JPLC

0.1 to 0.5 1.45 to 7.25 Green ERAA15915A0(1)

0.5 to 1 7 to 14.5 Galvanized ERSA00884A0

1 to 6 14.5 to 87 White ERSA00886A0

5 to 10 73 to 145 Yellow ERSA00887A0

8 to 20 116 to 290 Blue ERSA00906A0

18 to 30 261 to 435 Red ERSA00907A0

JPHO and JPHC28 to 40 406 to 580 Blue ERSA00906A0

38 to 65 551 to 943 Red ERSA00907A0

1. The green spring ERAA15915A0 (outlet pressure range: 0.1 to 0.5 bar / 1.45 to 7.25 psig) only used on Type JPLO Pilot and ANSI150.

3. Checking Lock-up Pressure

Slowly close the Outlet Isolation Valve of the regulator. Open the vent valve for a moment, then close the vent valve slowly.When the outlet pressure is stable, record the outlet pressure that is the Lock-up Pressure and countercheck if it is within the required specification.


99

Table 6. Type NZOS Regulator Outlet Pressure Range

PILOT TYPEOUTLET PRESSURE RANGE

SPRING COLOR PART NUMBERbar psig

JPLO and JPLC

0.1 to 0.5 1.45 to 7.25 Green ERAA15915A0(1)

0.5 to 1 7 to 14.5 Galvanized ERSA00884A0

1 to 6 14.5 to 87 White ERSA00886A0

5 to 10 73 to 145 Yellow ERSA00887A0

8 to 20 116 to 290 Blue ERSA00906A0

18 to 30 261 to 435 Red ERSA00907A0

JPHO and JPHC 28 to 40 406 to 580 Blue ERSA00906A0

1. The green spring ERAA15915A0 (outlet pressure range: 0.1 to 0.5 bar / 1.45 to 7.25 psig) only used on Type JPLO Pilot and ANSI150.

MANOMETRIC

SENSING

DEVICE(BMS)

TYPE

MANOMETRIC

SENSING DEVICE

(BMS) SIZE

mm

MAXIMUM

SENSING INLET

PRESSURE

bar / psig

SPRING RANGE

bar / psig

SRPING PART

NUMBER

SPRING

COLOR

MINIMUM DIFFERENCE

ALLOWED BETWEEN SET

PRESSURE AND NOMINAL

DOWNSTREAM REGULATOR

PRESSURE

bar / psig

FOR OUPSO, MAXIMUM

DIFFERENCE ALLOWED BETWEEN

MAXIMUM AND MINMUM SET

PRESSURE*

bar / psig

A162

(Diaphragm)5 / 72.5

0.01 to 0.035 /

0.14 to 0.51JJJJ56CXT07 Purple 0.004 / 0.058 0.01 / 0.14

0.025 to 0.08 /

0.36 to 1.16JJJJ56CXT08 Orange 0.005 / 0.073 0.025 / 0.36

0.045 to 0.14 /

0.65 to 2.1JJJJ56CXT09 Red 0.01 / 0.14 0.05 / 0.73

0.07 to 0.24 /

1.1 to 3.5JJJJ56CXT10 Yellow 0.014 / 0.21 0.06 / 0.87

0.115 to 0.38 /

1.7 to 5.5JJJJ56CXT11 Green 0.018 / 0.26 0.15 / 2.18

0.14 to 0.75 /

2.1 to 10.9JJJJ56CXT13 Gray 0.05 / 0.72 0.35 / 5.1

0.25 to 1.30 /

3.6 to 18.9JJJJ56CXT14 Brown 0.08 / 1.16 0.6 / 0.87

0.45 to 2.30 /

6.5 to 33.4JJJJ56CXT15 Black 0.17 / 2.5 1.1 / 16.0

B71

(Diaphragm)16 / 232

1.0 to 5.1 /

14.5 to 74.0JJJJ56CXT12 Blue 0.35 / 5.1 2.5 / 36.3

2.1 to 11 /

30.4 to 160JJJJ56CXT14 Brown 0.7 / 10.2 5.5 / 79.8

4.0 to 16 /

58.0 to 232JJJJ56CXT15 Black 1.6 / 23.2 10 / 145.0

C27

(Piston)100 / 1450

16 to 22 /

232 to 319JJJJ56CXT14 Brown 3 / 43.5

Cannot be used in applications that require one BMS device to provide

both high and low pressure trip application.

22 to 40 /

319 to 580JJJJ56CXT15 Black 6.5 / 94.3

D17

(Piston)100 / 1450

40 to 55 /

580 to 798JJJJ56CXT14 Brown 7 / 102

* Maximum difference between overpressure and underpressure when using one manometric device (BMS) with one spring. For difference between underpressure and overpressure set pressures greater than this maximum number, use two manometric devices (Type BMS1 or BMS2) for protection.

Table 7. Type NZOS Slam-shut Set Range

4. Shutdown

To avoid personal injury or property damage due to explosion or damage to regulator or downstream components during shutdown, release downstream pressure to prevent an overpressure condition on the diaphragm of the regulator.

1. First, slowly close the upstream or Inlet Isolation Valve.2. Close the downstream or Outlet Isolation Valve slowly. 3. Release the pressure inside the regulator and other devices between inlet and outlet isolation valves.

! WARNING


1010

8. Maintenance

1. Regular checks

2. Periodic Maintenance

3. Troubleshooting

Personal injury, equipment damage or leakage due to escaping fluid may result if seals are not properly lubricated or maintained. Due to normal part wear or damage that may occur from external source, the regulator should be inspected and maintained periodically. The frequency of inspection, maintenance and replacement of parts depend upon the severity of service conditions or the requirements of local, state and federal rules and regulations.

Regulator parts are prone to normal wear and tear. They must be inspected and replaced as necessary. To ensure a smooth operation of the regulator, determine the servicing schedule based on the working condition of the regulator and the inlet gas properties.

1. Ensure that there is no leakage on the regulator and tubing connections using soap solution.

2. Observe the outlet pressure gauge to make sure that the desired outlet pressure is stabilized.

1. A lockup pressure test on Type NZ periodically. A shutoff pressure test on Type NZOS periodically. Under normal circumstances, it is not necessary to disassemble the regulator from the pipeline.

2. Clean the regulator and pilot periodically. Check the seat, diaphragm, O-rings and other soft parts. Replace any parts that are worn out or damaged.

3. Check the other parts of the regulator to ensure that they are in good working condition. Change the worn out parts.

4. Ensure the pipeline system is clean and free of foreign materials.

! WARNING

PROBLEM POSSIBLE CAUSES POSSIBLE CORRECTIVE MEASURES

Regulator does not work.

Upstream slam-shut valve is closed.Reset slam-shut valve. (Investigate the reason why slam shut valve is closed before resetting it.)

Inlet valve not open. Open the valve.

Inlet and outlet differential pressure too low. Ensure proper inlet and outlet pressures.

Main valve diaphragm damaged. Replace diaphragm.

Pilot second stage diaphragm damaged. Replace diaphragm.

Wrong connection of sensing line. Check sensing line connection.

Main line inlet filter or pilot filter clogged. Replace or clean filter.

Outlet pressure of the regulator drops abnormally.

Actual gas flow rate exceeds capacity of the regulator. Choose the right size regulator.

Main line inlet filter or pilot filter clogged. Clean or replace filter.

Insufficient upstream pressure. Check upstream pressure.

Pilot restrictor unscrewed too much. Screw the restrictor in tightly.

Lock-up pressure increases.

Main valve seat or pilot disk damaged or debris builds up. Replace or clean seat/disk.

Orifice damaged or debris build up. Replace or clean orifice.

Pilot restrictor hole clogged. Clean the restrictor hole.

O-ring damaged. Replace O-ring.

The regulator response speed is low.

Moveable parts within the main valve or pilot are malfunctioning. Service and clean the regulator. Replace damaged or deformed parts.

Pilot restrictor hole clogged. Clean restrictor hole.

Regulator huntingor unstable.

Differential pressure is too high and/or too small flow rate. Increase flow rate and/or decrease the differential pressure.

Downstream pipe gas velocity exceeds limitation. Increase downstream pipe diameter or decrease the flow rate.

Close inlet and outlet isolation valve, then release pressure in the regulator and other devices before dismantling the regulator. Once the maintenance is carried out and regulator is assembled, an external leakage test and lock up test must be carried out.

! WARNING


1111

9. Ordering GuideBody Size (Select One)

DN 25 / 1 in.

DN 50 / 2 in.

DN 80 / 3 in.

DN 100 / 4 in.

DN 150 / 6 in.

End Connection Style (Select One)

ANSI 150 ANSI 300 ANSI 600

Pilot (Select One) Single Regulator and Wide-open Monitor System

Fail open Fail close

Working Monitor System

Fail Open (Only for Worker Pilot)

Fail Close (Only for Worker Pilot)

Fail Open (Only for Monitor Pilot)

Fail Close (Only for Monitor Pilot)

Spring Range (Select One)

0.1 to 0.5 bar / 1.45 to 7.25 psig, Green (only for Main Valve ANSI 150 and Type JPLO6 pilot)

0.5 to 1 bar / 7 to 14.5 psig, Galvanized

1 to 6 bar / 14.5 to 87 psig, White

5 to 10 bar / 73 to 145 psig, Yellow

8 to 20 bar / 116 to 290 psig, Blue

18 to 30 bar / 261 to 435 psig, Red

28 to 40 bar / 406 to 580 psig, Blue

38 to 65 bar / 551 to 943 psig, Red

Material (Type NZ main valve)

Body (Check box for each)

WCB

WCC

LCC

Bonnet and Diaphragm casing (Check box for each)

A105

LF2

Optional Equipment

Travel Indicator

Internal Silencer

Cg: 200 for DN 25 size Stainless steel fitting

Type NZOS integrated slam-shut regulator (specification for slam-shut device refer to Type JEQ manual)

Travel Transducer

Spare Parts Kit (Recommended) for:

ERSA03337A0, DN 25 / 1 in. Main Valve

ERSA03337A1, DN 25 / 1 in. Main Valve (only for Cg 200)

ERSA03338A0, DN 50 / 2 in. Main Valve

ERAA07116A0, DN 80 / 3 in. Main Valve



ERSA03342A0, Type JPLO Pilot

ERSA03343A0, Type JPHO Pilot

ERSA03344A0, Type JPLC Pilot

ERSA03345A0, Type JPHC Pilot

ERAA08981A0, DN 25 / 1 in. Jeon slam-shut device spare parts kit




JJJJ56BX021, Type A BMS spare parts kit

JJJJ56BX022, Type B BMS spare parts kit

JJJJ56BX023, Type C BMS spare parts kit

JJJJ56BX032, Type D BMS spare parts kit

ERAA19264A0, Type JPLOW for Worker Pilot

ERAA19264A1, Type JPHOW for Worker Pilot

ERAA19265A0, Type JPLCW for Worker Pilot

ERAA19265A1, Type JPHCW for Worker Pilot

ERAA19263A0, Type JPLOM for Monitor Pilot

ERAA19263A1, Type JPHOM for Monitor Pilot

ERAA19262A0, Type JPLCM for Monitor Pilot

ERAA19262A1, Type JPHCM for Monitor Pilot

Neither EmersonTM, Emerson Process Management, nor any of their affiliated entities assumes responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use, and maintenance of any product remains solely with the purchaser and end user.

Jeon is mark owned by one of the companies in the Emerson Process Management business unit of Emerson Electric Co. Emerson Process Management, Emerson, and the Emerson logo are trademarks and service marks of Emerson Electric Co. All other marks are the property of their respective owners.

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guarantees, express or implied, regarding the products or services described herein or their use or applicability. All sales are governed by our terms and conditions, which are available upon request. We reserve the right to modify or improve the designs or specifications of such products at any time without notice.

For enquiries, please contact us at [email protected]

For further information, please visitwww.ap.emersonprocess.com/regulators

Emerson Process Management Chennai Ltd# 147 Rajiv Gandhi Salai Old Mahabalipuram Road Karapakkam Village Chennai, India - 600097T +91 44 4903 4405F +91 44 4903 4400

FIShER JEON Gas Equipment (Chengdu) Co., LtdNo. 9, Wukedong 2nd Road, Wuhou Science Technic Park, Chengdu, 610045, P.R. ChinaT: (028) 85360000 F: (028) 85371201Service T: (028) 85366930 or (028) 85360000 Ext. 1613

Emerson Process ManagementAsia Pacific Pte LtdRegulator Technologies

1 Pandan CrescentSingapore 128461T: +65 6770 8337F: +65 6770 8028

type nz/nzos - emerson · type nz/nzos pressure regulator 33 1. introduction type nz is a...

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