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    Non-Slam, Nozzle Check Valve

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

    Enertech, Authorized Nuclear Power Industry Representative

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

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    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 Oerings 3, 4 & 5

    Quality Assurance and Face-to-Face Dimensions 6

    Materials of Construction 7

    TRADEMARK INFORMATION 8

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

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

    The ENTECH nozzle check valve is designed to meet thecriteria of conventional check valves by allowing forwardow under normal conditions, opening easily, rmlybackseating at low velocity and closing on reverse owwith minimal seat leakage.

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

    The ENTECH nozzle check valveis aligned with other Cameronproducts, leading the eld in

    pipeline and gas production,oshore, onshore, sub-sea,rening and industrial processing.

    Non-slamming - valve closes prior to reverse ow

    Short stroke length reduces closure time andeliminates water hammer

    Metal-to-metal sealing Conical seating surface is self-aligning and

    rovides tight shut-o

    Minimum pressure loss withexcellent dynamic performance

    Spring loaded disc design allowsmounting in any orientation

    No scheduled maintenance

    NON-SLAM, NOZZLE CHECK VALVE

    APPLICATIONS

    Compressor discharge

    Natural gas, reneries

    Pump discharge

    Critical equipment discharge

    Compressor/pump bypass

    Storage facilities Oshore

    Nuclear power plants

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

    3

    NON-SLAM, NOZZLE CHECK VALVE

    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) to10 in. (250 mm) diameter. This size range allows the use of a simple, streamlined, in-line check designwhich 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 congurations can be provided upon request

    Other sizes and pressure classes on request

    VALVE BODY

    BUSHING

    HELICAL SPRING

    FLOW DIFFUSER

    VALVE DISC

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

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    NON-SLAM, NOZZLE CHECK VALVE

    PRODUCT 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 doughnutshaped annular disc, ENTECH Nozzle Checks are able to minimize the weight (mass) of the disc and hasthe 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-oSizes 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 congurations 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

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    DRV-BK

    NON-SLAM, NOZZLE CHECK VALVE

    PRODUCT OFFERING

    The DRV-BK utilizes the same design concept and features and benets found in ENTECHs DRV-Bdesign. The only dierence is that the DRV-BK is a compact design thus it has shorter Face-to Face and islighter 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-oSizes 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 congurations 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

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

    6

    NON-SLAM, NOZZLE CHECK VALVE

    QUALITY ASSURANCE

    Cameron management operates a high level quality control program to ensure that all ENTECHproducts 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 nalinspection and delivery.

    Cameron's Six Sigma lean manufacturing philosophy and the standard warranty which covers theproduct for 12 months after installation or 18 months after shipment, whichever occurs rst, assure thatthe 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 Manufactures 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 Manufactures 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

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    NON-SLAM, NOZZLE CHECK VALVE

    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

    Diuser ASTM A216 WCC / ASTM A105 ASTM A352 LCC ASTM A35