Enertech Cartridge Ball ValvesTop-Entry Isolation Valves

Nuclear

www.cwnuclear.com

EnertechEnertech, a product and service brand of Curtiss-Wright Nuclear, has been committed to the nuclear power industry since 1967 with the development of the first nuclear qualified hydraulic large bore snubber for Diablo Canyon. Today, Curtiss-Wright Nuclear focuses on providing products and services to the worldwide nuclear power industry including commercial nuclear power plants, NSSS suppliers, A&E’s, and the U.S. Department of Energy.

NUCLEAR QUALITY ASSURANCE

We provide our customers with the most reliable and fully qualified products. Curtiss-Wright Nuclear’s certifications demonstrate our commitment in complying with the nuclear industry’s regulations, codes, and standards. Our QA Program has been audited since the early 1990s by the Nuclear Utility Procurement Issues Committee (NUPIC), including observation of the NUPIC Process by the NRC.

Enertech cartridge ball valves are manufactured to the highest quality in accordance with:• 10CFR50 Appendix B• ASME N, NPT, and NBIC NR Certificates of Authorization• ASME Section NQA-1• ANSI N45.2• ANSI B16.34• NRC RG 1.26, 1.28

ENGINEERING CAPABILITIES

With years of combined nuclear valve experience, Curtiss-Wright Nuclear has extensive knowledge in solving industry problems with isolation and throttling valves. Our dedicated nuclear engineering team will evaluate your equipment and system challenges and provide an engineering solution that delivers long-term reliability.

ANALYSIS AND MODELING CAPABILITIES• State-of-the-art software packages validated according to NQA-1 requirements• Finite element analysis modeling• Structural and flow analysis• Heat transfer analysis• Modeling highly complex flows from subsonic to supersonic; perform failure and root cause

analysis and offer solutions to prevent future occurrences

Over 50 Years of Nuclear Experience

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Enertech Cartridge Ball Valves

Enertech cartridge ball valves are an innovation in valve design. The Hemiwedge Cartridge Valve (HCV) and Ball Cartridge Valve (BCV) provide tight shutoff and high flow coefficients in a compact design that simplifies maintenance. Enertech HCV and BCV valves combine the positive features of ball, gate, and butterfly valves while avoiding major drawbacks associated with these traditional designs.

When evaluating valve designs for nuclear power plants, it is important to consider product maintenance. The HCV and BCV top-entry cartridge design enables quick trim replacements with ease. All the components for seating and sealing are encapsulated inside the cartridge. The agility of this valve cartridge design helps to reduce radiation dosage, minimize costs associated with complex training programs, and reduce burden on maintenance departments.

9 INNOVATIVE VALVE DESIGN

Enertech HCV and BCV valves are a combination of the best characteristics of the major valve designs (ball, gate, and triple offset butterfly valves) with the superior advantages of access and repairability of sealing components.

9 TOP-ENTRY CARTRIDGE VALVE

Enertech cartridge ball valves feature ease of access to internals for simple, quick repair or re-trim. All internal parts are attached to the bonnet, allowing efficient exchange when required and minimizing downtime.

9 BUBBLE-TIGHT SEALING

The HCV and BCV valves can be supplied with either resilient or metal seats that hold to the tightest industry standards. Resilient seated valves are tested to bubble-tight requirements (API 6D/ISO 5208 Rate A with no visible leakage allowed), and metal seated valves are tested to drop-tight standards (MSS-SP-61 and ISO 5208 Rate D).

SPECIFICATIONSWith over 50 years of experience in providing nuclear qualified products to power plants worldwide, Curtiss-Wright Nuclear can provide guidance on meeting existing design specifications or develop brand new design specifications, which can be certified by our staff of Professional Engineers.

APPLICATIONS

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Service Water Isolation and Flow ControlContainment IsolationSteam Generator Blowdown IsolationChemical Volume Control System Component Cooling WaterContainment Purge/Vent IsolationAlternate Decay Heat Removal

Radiation WasteHeater Drain Level ControlCondensate PolishingCondensate/Feedwater LoopRaw Water TreatmentSafety Injection

Hemiwedge Cartridge Valve (HCV)

Ball Cartridge Valve (BCV)

Principles of Operation

Hemi Cartridge Valve (HCV)

PNEUMATICSince 1984, Curtiss-Wright Nuclear has partnered with Bettis to provide the industry with qualified pneumatic actuators. Bettis actuators have been used successfully on Enertech cartridge ball valves and are capable of meeting all torque demands.

Actuator OptionsCurtiss-Wright Nuclear offers a wide range

of options for actuation. Our application engineers can select the best actuator for

your service requirements.

MECHANICAL WEDGE SEATING

The mechanical seal is achieved by rotating the HEMI (a spherical shell) around a central fixed axis (stem). The offset of the external sealing surface of the HEMI causes a camming action on the seat as it rotates. This creates a positive mechanical load on the seat at the fully closed position. The positive mechanical load provides a tight seal at both low and high pressures, irrespective of direction of differential pressure.

STATIONARY CORE

During the opening and closing of the valve, the cylindrical core maintains its stationary position within the HEMI, which directs fluid flow straight through the valve. The arrangement minimizes fluid impingement on the sealing surfaces and the side of the body. This HCV design feature greatly reduces erosion in the valve parts and results in longer seat life compared to conventional ball valves - particularly with flow streams containing scale, sand, and other particulates.

QUARTER TURN OPERATION

The HCV is a quarter turn design capable of replacing many conventional valve types with quick, reliable operation in emergency shutdown and other critical shutoff applications. It is easily adapted to standard quarter turn actuation.

HCV Fully Closed

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Ball Cartridge Valve (BCV)

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ELECTRO-HYDRAULICEnertech EHOs are fully self-contained electro-hydraulic operators designed for large bore rotary isolation and modulating applications. The actuator is IEEE qualified for use inside and outside containment. The design enables fast-acting response in less than five seconds for critical isolation applications and provides post-accident cycling.

ELECTRICCurtiss-Wright Nuclear offers a complete line of motor operated nuclear qualified actuators, including the only modulating electric actuator used for valves inside containment. Enertech valves have been used for many years in MOV applications that are subject to 89-10 Regulatory Testing and inspection.

MECHANICAL WEDGE SEATING

The mechanical seal is achieved by rotating the ball around a central fixed axis, and is supported by trunnions. The ball has an offset on its external surface. This offset creates camming action when the ball is rotated, providing a positive mechanical load on the seat at the full closed position. The positive mechanical load produces a tight seal at both low and high pressures, irrespective of direction of differential pressure.

The ball can have an offset on either one side (single seat) or on both of its sides (double seat).

BCV valves are suited for higher pressure classes and valve sizes.

HCV Fully Open HCV Partially Closed

PACKING AND GASKETS

A variety of packing and gasket options are available for Enertech Cartridge Valves, including metal and fabricated gasket options, low emission packing options, and double-packing sets with a lantern ring leak-off design.

Standard Materials of Construction

12345678910111213141516171819202122232425262728

BODYBONNET

STEMBALL

BEARING UPPERTHRUST WASHER

CAP SCREWRETAINER SEAT

RETAINER BOTTOMGLAND PLATE

STUDNUT

FOLLOWERSTEM BEARING

GASKET FLAT BODYSEAT MTM SPRING STYLE

GASKET FLAT SEATPACKING SET

HEX BOLTWASHER BELLEVILLE

NUTKEY SQ

HAT BEARING LOWERRETAINING RING

WASHERBEARING SPLIT TOP

BEARING SPLIT BOTTOMSPACER ASSEMBLY

A216 GR. WCCA216 GR. WCCA276 GR. 2205

A995 GR. 4A W. HFNITRONIC 60. A479NITRONIC 60. A479

A276 GR.316A36 PLATE / ENPA36 PLATE / ENPA564 GR. 17-4

1-1/4-8 UN A193 B71-1/4/8 UN A194 2H

A276 GR. 316NITRONIC 60. A479

SS / GRAPHITEINCONEL 718 B637

SS/GRAPHITEDIE FORMED GRAPHITE

5/8-11 UN A193 B7INCONEL 718 B6375/8-11 UN A193 B7

AISI 1018 CSNITRONIC 60 A479

A276 GR.316NITRONIC 60 A479

INCONEL 718INCONEL 718

A276 GR. 316 - INCONEL X-750

111111821120201111112222112111

Material*DescriptionItem Quantity

*Additional materials available upon request

17

9

11

8

6

16

3

12

14

15

8

24

28

10 18 1314

2

CARTRIDGE ONLY

10.75

10.65

7.62

6

Service TemperatureDEC. F

Primary Service Pressure Rating, ANSI B-16.34*Service Temperature

DEC. CCLASS 150 CLASS 300 CLASS 600 CLASS 900 CLASS 1500

-20 to 100 285 740 1480 2220 3705 -29 to 39

200 260 680 1360 2035 3395 93

300 230 655 1310 1965 3270 149

400 200 635 1265 1900 3170 204

500 170 605 1205 1810 3015 260

600 140 605 1210 1815 3025 315

700 110 555 1110 1665 2775 371

800 80 410 825 1235 2055 426

Pressure-Temperature Ratings / Product Availability

Pressure-Temperature Ratings

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*For valves of WCB material

Product Availability

CLASS 150 CLASS 300 CLASS 600 CLASS 900 CLASS 1500SIZE HCV BCV HCV BCV HCV BCV HCV BCV HCV BCV

1” 9 9 9 9 9 9 92” 9 9 9 9 9 9 93” 9 9 9 9 9 9 94” 9 9 9 9 9 9 9 9 96” 9 9 9 9 9 9 9 98” 9 9 9 9 9 9 9 910” 9 9 9 9 9 9 912” 9 9 9 9 9 9

Unlike most 90° ball valves, Pressure-Temperature rating for the Enertech cartridge ball valve is not limited by the seat material. The Pressure-Temperature is limited only by ANSI B-16.34.

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While this information is presented in good faith and believed to be accurate, Curtiss-Wright does not guarantee satisfactory results from reliance on such information. Nothing contained herein is to be construed as a warranty or guarantee, expressed or implied, regarding the performance, merchantability, fitness or any other matter with respect to the products, nor as a recommenda-tion to use any product or process in conflict with any patent. Curtiss-Wright reserves the right, without notice, to alter or improve the designs or specifications of the products described herein.

© 2018 Curtiss-WrightPrinted in U.S.A.

BR - 1330 - 06.2018 - ET

Contact InformationP: +1.714.528.2301F: +1.714.528.0128E: enertech@curtisswright.com

www.cwnuclear.com