Nozzle Check Valves

P R O C E S S V A L V E S

™ENTECH

ENTECHNon-Slam, Nozzle Check Valve

™


BR-ENT-NON-SLAM/NCV04/08 NP-5M


™ENTECH

TABLE OF CONTENTS

NON-SLAM, NOZZLE CHECK VALVE

Features and Applications 2

Design and Product Offerings DRV-Z 3

Design and Product Offerings DRV-B(O) 4

Design and Product Offerings DRV-BK 5

Quality Assurance and Face-to-Face Dimensions 6

Materials of Construction and Operating Temperatures 7

TRADEMARK INFORMATION 8


2 BR-ENT-NON-SLAM/NCV04/08 NP-5M

™ENTECH

Since 1930, ENTECH nozzle check valves have provided reliable backflow prevention for the oil, gas, water and process industries.

Beginning in 1972, ENTECH has served the nuclear industry with nozzle check valves for containment and commercial process.

The ENTECH nozzle check valve is designed to meet the criteria of conventional check valves by allowing forward flow under normal conditions, opening easily, firmly backseating at low velocity and closing on reverse flow with minimal seat leakage.

The ENTECH nozzle check valve meets these basic requirements and incorporates these additional features:

The ENTECH nozzle check valve is aligned with other Cameron products, leading the field in pipeline and gas production, offshore, onshore, sub-sea, refining and industrial processing.

• Non-slamming - valve closes prior to reverse flow

• Short stroke length reduces closure time and minimizes water hammer

• Metal-to-Metal seating

• Conical seating surface is self-aligning and provides tight shut-off

• Minimum pressure loss with excellent dynamic performance

• Spring loaded disc design allows mounting in any orientation

• No scheduled maintenance


APPLICATIONS

• Compressor discharge

• Natural gas, refineries

• Pump discharge

• Critical equipment discharge

• Compressor/pump bypass

• Storage facilities

• Offshore

• Nuclear power plants


BR-ENT-NON-SLAM/NCV04/08 NP-5M 3™ENTECH


PRODUCT OFFERING

DRV-Z

The DRV-Z Nozzle Check is a small bore valve designed for use in piping systems from 1 in. (25 mm) to 10 in. (250 mm) diameter. This size range allows the use of a simple, streamlined, in-line check design which is quick to respond to changes in velocity.

The DRV-Z design also provides:

• Non-Slam Closure

• Metal Seating

• Extremely Quick Closure

• Spring Loaded disc design allows mounting in any orientation

• Low Pressure Loss

• No Scheduled Maintenance

Sizes and Ratings

• Size 1 in. (25 mm) through 10 in. (250 mm)

• ANSI/ASME Classes 150 through 2500

• API 3000 through 10,000

• Face-to-Face API 6D, Manufacturers Standard, DIN Standard

• End Connections ANSI/ASME flanges are standard,weld end or other flange end configurations can be provided upon request

• Other sizes and pressure classes will be considered upon request

VALVE BODY

BUSHING

HELICAL SPRING

FLOW DIFFUSER

VALVE DISC



™ENTECH


PRODUCT OFFERING

The DRV-B(O) Nozzle Check is a large bore valve for use in compressor and pumping stations from 12 in. (300 mm) through 36 in. (900 mm) diameter. In this size range ENTECH incorporates the use of an annular ring design which outperforms other nozzle check valve designs. By utilizing the doughnut shaped annular disc, ENTECH Nozzle Checks are able to minimize the weight (mass) of the disc and has the ability to go from fully open to fully closed in a fraction of a second.

The DRV-B(O) design also provides:


• Metal Seating





• Tight Shut-off

Sizes and Ratings



• Face-to-Face API 6D, Manufacturers Standard



DRV-B(O)

RADIAL GUIDE

HELICAL SPRING

CENTRAL TIE BOLT

VALVE BODY

FLOW DIFFUSERSPRING HOLDER

DISC

TRAPEZOID WASHER



DRV-BK


PRODUCT OFFERING

The DRV-BK utilizes the same design concept and features and benefits found in ENTECH’s DRV-B(O) design. The only difference is that the DRV-BK is a compact design thus it has shorter Face-to Face and is lighter weight.

The DRV-BK design also provides:


• Metal Seating





• Tight Shut-off

Sizes and Ratings



• Face-to-Face Manufacturers Standard



DISC

TRAPEZOID WASHER

VALVE BODY

FLOW DIFFUSER

RADIAL GUIDE

CENTRAL TIE BOLT

HELICAL SPRING

SPRING HOLDER



™ENTECH

NON-SLAM, NOZZLE CHECK VALVE QUALITY ASSURANCE

Cameron management operates a high level quality control program to ensure that all ENTECH products are designed and manufactured to the highest standards available using the latest technology.

The Cameron Quality Assurance program encompasses our entire operation, from order entry to final inspection and delivery.

Cameron's Six Sigma lean manufacturing philosophy and the standard warranty which covers the product for 12 months after installation or 18 months after shipment, whichever occurs first, assure that the design, materials and workmanship of all ENTECH products result in years of dependable operation.

SPECIFICATIONS AND COMPLIANCE: ISO 9001-2000, API 6D ISO 14313, GOST R, PED/CE, API 6A.

DRV-Z

Size Manufacture’s Standard API 6D

in. (mm) ASME 150-300 ASME 600 ASME 900 ASME 150 ASME 300 ASME 600 ASME 900 ASME 1500

12 (300) 13.780 (350) 14.764 (375) 17.323 (440) 27.52 (699) 27.99 (711) 32.99 (838) 37.99 (965) 44.49 (1130)

14 (350) 15.945 (405) 17.323 (440) 17.323 (440) 30.98 (787) 32.99 (838) 35.00 (889) 40.51 (1029) 49.49 (1257)

16 (400) 17.913 (455) 19.685 (500) 18.504 (470) 34.02 (864) 34.02 (864) 39.02 (991) 44.49 (1130) 54.49 (1384)

18 (450) 20.472 (520) 22.244 (565) 20.866 (530) 38.50 (978) 38.50 (978) 42.99 (1092) 47.99 (1219) 60.51 (1537)

20 (500) 22.441 (570) 24.606 (625) 23.425 (595) 38.50 (978) 40.00 (1016) 47.01 (1194) 52.01 (1321) 65.51 (1664)

24 (600) 26.969 (685) 29.331 (745) 33.465 (850) 50.98 (1295) 52.99 (1346) 55.00 (1397) - -

28 (700) 31.496 (800) 34.252 (870) 34.449 (875) 57.01 (1448) 59.02 (1499) 62.99 (1600) - -

30 (750) 33.661 (855) 36.614 (930) 36.417 (925) 60.00 (1524) 62.76 (1594) 65.00 (1651) - -

32 (800) 35.827 (910) 38.976 (990) 38.386 (975) - - - - -

36 (900) 40.551 (1030) 44.094 (1120) 46.850 (1190) 77.01 (1956) 82.01 (2083) 82.01 (2083) - -

DRV-B(O)

FACE-TO FACE DIMENSIONS

Size Manufacture’s Standard API 6D

in. (mm) ASME 150-900 ASME 1500 ASME 150 ASME 300 ASME 600 ASME 900 ASME 1500

1 (25) 3.937 (100) 7.087 (180) - - - - -

2 (50) 4.724 (120) 7.874 (200) 7.99 (203) 10.51 (267) 11.50 (292) 14.49 (368) 14.49 (368)

3 (80) 7.087 (180) 7.874 (200) 9.49 (241) 12.52 (318) 14.02 (356) 15.00 (381) 18.50 (470)

4 (100) 9.449 (240) 9.449 (240) 11.50 (292) 14.02 (356) 17.01 (432) 17.99 (457) 21.50 (546)

6 (150) 13.780 (350) 13.780 (350) 14.02 (356) 17.52 (445) 22.01 (559) 24.02 (610) 27.76 (705)

8 (200) 17.717 (450) 17.717 (450) 19.49 (495) 20.98 (533) 25.98 (660) 29.02 (737) 32.76 (832)

10 (250) 19.685 (500) 19.685 (500) 24.49 (622) 24.49 (622) 30.98 (787) 32.99 (838) 39.02 (991)

Other sizes and pressure classes will be considered upon request.

Size Manufacture’s Standard

in. (mm) ASME 150-300 ASME 600

12 (300) 7.13 (181) 9.02 (229)

14 (350) 8.74 (222) 10.75 (273)

16 (400) 9.65 (245) 12.01 (305)

18 (450) 10.39 (264) 14.25 (362)

20 (500) 12.01 (305) 14.49 (368)

24 (600) 14.57 (370) 17.24 (438)

28 (700) 16.93 (430) 18.90 (480)

30 (750) 18.11 (460) 19.88 (505)

32 (800) 19.69 (500) 22.99 (584)

36 (900) 22.05 (560) 25.00 (635)

DRV-BK




STANDARD MATERIALS OF CONSTRUCTION

GUIDE BUSHING DIFFUSER

VALVE DISC HELICAL SPRING

OPEN

CLOSED

HELICAL SPRING

SEAT

VALVE DISC

VALVE BODY VALVE BODY

DIFFUSER

CENTRALTIE BOLT

SCREW RADIAL GUIDE

SEAT(outer)

SEAT(inner)

OPEN

CLOSED

Description Standard Carbon Steel Low Temperature Carbon Steel Stainless Steel

Valve Body ASTM A216 WCC / ASTM A105 ASTM A352 LCC ASTM A351 CF8M / 316 S

Diffuser ASTM A216 WCC / ASTM A105 ASTM A352 LCC ASTM A351 CF8M / 316 Stainless Steel

Valve Disc ASTM A351 CF8M / 316 Stainless Steel ASTM A351 CF8M / 316 Stainless Steel ASTM A351 CF8M / 316 Stainless Steel

Seat* 316 Stainless Steel 316 Stainless Steel 316 Stainless Steel

Helical Spring Alloy X-750 Alloy X-750 Alloy X-750

Radial Guide** Alloy X-750 Alloy X-750 Alloy X-750

Screw** ASTM A193 B8M ASTM A320 B8M ASTM A193 B8M

Central Tie Bolt** ASTM A193 B7M ASTM A320 L7M ASTM A193 B8M

Guide Bushing Gr. 630 Stainless Steel Gr. 630 Stainless Steel -

tainless Steel

* 12 in. (300 mm) and larger valves use inlaid seats as standard.** 12 in. (300 mm) and larger only.Other materials available upon request to meet specific service requirements. Cameron reserves the right to substitute equivalent materials.All materials comply with NACE MR0175.

Standard Carbon Steel

• DRV-Z -20°F to 392°F (-29°C to 200°C)

• DRV-B(O) and DRV-BK -20°F to 572°F (-29°C to 300°C)

Low Temperature Carbon Steel

• DRV-Z -50°F to 392°F (-45°C to 200°C)

• DRV-B(O) and DRV-BK -50°F to 572°F (-45°C to 300°C)

Stainless Steel -320°F to 482°F (-196°C to 250°C)

Other temperatures to be evaluated upon request.

OPERATING TEMPERATURES

BR-ENT-NON-SLAM/NCV04/08 NP-5M

™ENTECH


TRADEMARK INFORMATION

TMENTECH is a registered trademark which is owned by Cameron.

8

REQUEST FOR QUOTES CAN BE SENT VIA

Mail To:Cameron Valves & MeasurementHeiligenstr. 75D - 41751 ViersenGermany

Phone: 49 2162-8170-133

Fax: 49 2162-8170-282

Email: [email protected]


Printed in Canada Revised 04/08-NP-5M BR-ENT-NON-SLAM/NCV


For the most current contact and location information go to: www.c-a-m.com/valvesandmeasurement

VALVES & MEASUREMENT3250 Briarpark Drive, Suite 300Houston, Texas 77042USA Toll Free 800 323 9160

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Nozzle Check Valves