(web)Non-Slam Nozzle Check Valve 02-07enertechlibrary.cwfc.com/.\libdocs\literature\1108.pdf · P R O C E S S V A L V E S 2 Since 1930, ENTECH nozzle check valves have provided reliable

Non-Slam, Nozzle Check Valve

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

Enertech, Authorized Nuclear Power Industry Representative

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

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

TABLE OF CONTENTS

NON-SLAM, NOZZLE CHECK VALVE

Features and Applications 2

Design and Product O�erings 3, 4 & 5

Quality Assurance and Face-to-Face Dimensions 6

Materials of Construction 7

TRADEMARK INFORMATION 8

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

2

Since 1930, ENTECH nozzle check valves have provided reliable back�ow 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 �ow under normal conditions, opening easily, �rmly backseating at low velocity and closing on reverse �ow 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 �eld in pipeline and gas production, o�shore, onshore, sub-sea, re�ning and industrial processing.

• Non-slamming - valve closes prior to reverse �ow

• Short stroke length reduces closure time and eliminates water hammer

• Metal-to-metal sealing

• Conical seating surface is self-aligning and rovides tight shut-o�

• Minimum pressure loss with excellent dynamic performance

• Spring loaded disc design allows mounting in any orientation

• No scheduled maintenance

NON-SLAM, NOZZLE CHECK VALVE

APPLICATIONS• Compressor discharge

• Natural gas, re�neries

• Pump discharge

• Critical equipment discharge

• Compressor/pump bypass

• Storage facilities

• O�shore

• Nuclear power plants

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

3

NON-SLAM, NOZZLE CHECK VALVEPRODUCT 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 �anges are standard,weld end or other �ange end con�gurations can be provided upon request

• Other sizes and pressure classes on request

VALVE BODY

BUSHING

HELICAL SPRING

FLOW DIFFUSER

VALVE DISC

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

4

NON-SLAM, NOZZLE CHECK VALVEPRODUCT OFFERING

The DRV-B Nozzle Check is a large bore valve for use in compressor and pumping stations from 12 in. (300 mm) through 68 in. (1700 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 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

• Tight Shut-o�

Sizes and Ratings• Size 12 in. (300 mm) through 68 in. (1700 mm)

• ANSI/ASME Classes 150 through 2500

• API 3000 through 10,000

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

• End Connections ANSI/ASME �anges are standard,weld end or other �ange end con�gurations can be provided upon request

• Other sizes and pressure classes on request

DRV-B

RADIAL GUIDE

HELICAL SPRING

CENTRAL TIE BOLT

VALVE BODY

FLOW DIFFUSERSPRING HOLDER

DISC

TRAPEZOID WASHER

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

5

DRV-BK

NON-SLAM, NOZZLE CHECK VALVEPRODUCT OFFERING

The DRV-BK utilizes the same design concept and features and bene�ts found in ENTECH’s DRV-B design. The only di�erence 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:• Non-Slam Closure

• Metal Seating

• Extremely Quick Closure

• Spring Loaded disc design allows mounting in any orientation

• Low Pressure Loss

• No Scheduled Maintenance

• Tight Shut-o�

Sizes and Ratings• Size 12 in. (300 mm) through 64 in. (1600 mm)

• ANSI/ASME Classes 150 through 900

• API 3000 through 10,000

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

• End Connections ANSI/ASME �anges are standard,weld end or other �ange end con�gurations can be provided upon request

• Other sizes and pressure classes on request

DISC

TRAPEZOID WASHER

VALVE BODY

FLOW DIFFUSER

RADIAL GUIDE

CENTRAL TIE BOLT

HELICAL SPRING

SPRING HOLDER

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

6

NON-SLAM, NOZZLE CHECK VALVEQUALITY 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 �nal 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 �rst, 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, GOST R, PED/CE, API 6A.

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) 7.874 (200) 11.50 (292) 14.02 (356) 17.01 (432) 17.99 (457) 21.50 (546)

5 (125) 11.811 (300) 9.449 (240) - - - - -

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)

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) - -

40 (1000) 44.685 (1135) 48.819 (1240) - - - - - -

42 (1050) 47.047 (1195) 51.181 (1300) - - - - - -

48 (1200) 53.740 (1365) 58.465 (1485) - - - - - -

56 (1400) 62.992 (1600) 68.110 (1730) - - - - - -

60 (1500) 67.323 (1710) 73.031 (1855) - - - - - -

DRV-B

DRV-BK Consult factory for Face-To-Face Dimensions.

FACE-TO FACE DIMENSIONS

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

7

NON-SLAM, NOZZLE CHECK VALVESTANDARD 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

Di�user 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 speci�c service requirements. Cameron reserves the right to substitute equivalent materials.All materials comply with NACE MR0175.

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

TRADEMARK INFORMATION

8

REQUEST FOR QUOTES CAN BE SENT VIA

Mail To:Enertech, a business unit of Curtiss-Wright Flow Control Company2950 Birch StreetBrea, CA 92821 USA

Phone: 714-528-2301

Fax:

http://enertech.cwfc.com

714-528-0128

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

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