Pressure Sealed Bonnet Check Valve

Short Description:

PRODUCT RANGE: Sizes: NPS 1/2 to NPS2 (DN15 to DN50) Pressure Range: Class 800, Class 150 to Class 2500 MATERIALS: Forged (A105, A350 LF2, A182 F5, F11, F22, A182 F304 (L), F316 (L), F347, F321, F51), Alloy 20, Monel, Inconel, Hastelloy STANDARD Design & manufacture API 602,ASME B16.34,BS 5352 Face-to-face MFG’S End Connection - Flange Ends to ASME B16.5   - Socket Weld Ends to ASME B16.11   - Butt Weld Ends to ASME B16.25   - Screwed Ends to ANSI/ASME B1.20.1 Test & in...


Product Detail

Materials

Product Tags

PRODUCT RANGE:

Sizes: NPS 1/2 to NPS2 (DN15 to DN50)

Pressure Range: Class 800, Class 150 to Class 2500

MATERIALS:

Forged (A105, A350 LF2, A182 F5, F11, F22, A182 F304 (L), F316 (L), F347, F321, F51), Alloy 20, Monel, Inconel, Hastelloy

STANDARD

Design & manufacture API 602,ASME B16.34,BS 5352
Face-to-face MFG’S
End Connection - Flange Ends to ASME B16.5
  - Socket Weld Ends to ASME B16.11
  - Butt Weld Ends to ASME B16.25
  - Screwed Ends to ANSI/ASME B1.20.1
Test & inspection API 598
Fire safe design /
Also available per NACE MR-0175, NACE MR-0103, ISO 15848
Other PMI, UT, RT, PT, MT

 Design Features:

1. Forged Steel,Piston,Ball or Swing type

2. Integral Body Seat for Piston and Ball Check valves

3. Separated Seat Ring design for swing check valves

4. Spiral Wound Gasket or Oval Ring Joint gasket

5. Reduced Bore or Full Port,

6. T-Pattern or Y-Pattern,

7. Socket Welded,Threaded,Butt Welded,Flanged End.

Newsway valve company Pressure sealed bonnet check valve is a Pressure sealed bonnet check valve, generally used in high-pressure pipelines, such as 1500LB, 2500LB, etc. It is a valve that can automatically prevent fluid from flowing back. The disc of the check valve opens under the action of fluid pressure, and the fluid flows from the inlet side to the outlet side. When the inlet side pressure is lower than the outlet side, the valve flap is automatically closed under the action of the fluid pressure difference, gravity and other factors to prevent the fluid from flowing back.

Check valves are generally divided into several types such as lift type and swing type.

The structure of a lift check valve is generally similar to that of a stop valve. Its valve flap moves up and down along the center line of the channel, which is reliable in action, but has a large fluid resistance and is suitable for small diameter occasions. Lift check valves can be divided into two types: straight-through and vertical. Straight-through lift check valves generally can only be installed in horizontal pipelines, while vertical lift check valves should generally be installed in vertical pipelines.

The disc of the swing check valve rotates around the rotating shaft. Its fluid resistance is generally smaller than that of a lift check valve, and it is suitable for larger diameter occasions. According to the number of discs, the swing check valve can be divided into three types: single disc swing, double disc swing and multi disc swing. Single flap swing check valve is generally suitable for medium caliber occasions. When a single flap swing check valve is used for large-caliber pipelines, in order to reduce the water hammer pressure, it is best to use a slow-closing check valve that can reduce the water hammer pressure. The double flap swing check valve is suitable for large and medium diameter pipelines. Wafer double flap swing check valve has a small structure and light weight, and is a fast-developing check valve; multi flap swing check valve is suitable for large diameter pipes and roads.

Main features of forged steel pressure sealed bonnet check valve

1. Short structure length, small size and light weight.

2. The valve flap closes quickly and the water hammer pressure is small.

3. Both horizontal and vertical pipes can be used, and the installation is convenient.

4. The flow channel is unobstructed and the fluid resistance is small.

5. Sensitive action and good sealing performance.

6. The valve clack stroke is short and the valve closing impact is small.

7. The overall structure, simple and compact, beautiful appearance.

8. Long service life and high reliability.


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  • Newsway Valves Materials

    NSW valve body and trim material can be offered in Forged type and Casting type. Next to stainless and carbon steel material, we also manufacture valves in special materials such as titanium, nickel alloys, HASTELLOY®*, INCOLOY®, MONEL®, Alloy 20, super-duplex, corrosion resistant alloys and urea grade materials.

    Available materials

    Tradename UNS nr. Werkstoff nr. Forging Casting
    Carbon steel K30504 1.0402 A105 A216 WCB
    Carbon steel   1.046 A105N  
    Low Temp Carbon steel K03011 1.0508 A350 LF2 A352 LCB
    High Yield steel K03014   A694 F60  
    3 1/2 Nickel steel K32025 1.5639 A350 LF3 A352 LC3
    5 Chrome, 1/2 Moly K41545 1.7362 A182 F5 A217 C5
    1 1/4 Chrome, 1/2 Moly K11572 1.7733 A182 F11 A217 WC6
      K11597 1.7335    
    2 1/4 Chrome, 1/2 Moly K21590 1.738 A182 F22 A217 WC9
    9 Chrome, 1 Moly K90941 1.7386 A182 F9 A217 CW6
    X 12 Chrome, 091 Moly K91560 1.4903 A182 F91 A217 C12
    13 Chrome S41000   A182 F6A A351 CA15
    17-4PH S17400 1.4542 A564 630  
    254 SMo S31254 1.4547 A182 F44 A351 CK3MCuN
    304 S30400 1.4301 A182 F304 A351 CF8
    304L S30403 1.4306 A182 F304L A351 CF3
    310S S31008 1.4845 A182 F310S A351 CK20
    316 S31600 1.4401 A182 F316 A351 CF8M
      S31600 1.4436    
    316L S31603 1.4404 A182 F316L A351 CF3M
    316Ti S31635 1.4571 A182 F316Ti  
    317L S31703 1.4438 A182 F317L A351CG8M
    321 S32100 1.4541 A182 F321  
    321H S32109 1.4878 A182 F321H  
    347 S34700 1.455 A182 F347 A351 CF8C
    347H S34709 1.4961 A182 F347H  
    410 S41000 1.4006 A182 F410  
    904L N08904 1.4539 A182 F904L  
    Carpenter 20 N08020 2.466 B462 N08020 A351 CN7M
    Duplex 4462 S31803 1.4462 A182 F51 A890 Gr 4A
    SAF 2507 S32750 1.4469 A182 F53 A890 Gr 6A
    Zeron 100 S32760 1.4501 A182 F55 A351 GR CD3MWCuN
    Ferralium® 255 S32550 1.4507 A182 F61  
    Nicrofer 5923 hMo N06059 2.4605 B462 N06059  
    Nickel 200 N02200 2.4066 B564 N02200  
    Nickel 201 N02201 2.4068 B564 N02201  
    Monel® 400 N04400 2.436 B564 N04400 A494 M35-1
    Monel® K500 N05500 2.4375 B865 N05500  
    Incoloy® 800 N08800 1.4876 B564 N08800  
    Incoloy® 800H N08810 1.4958 B564 N08810  
    Incoloy® 800HT N08811 1.4959 B564 N08811  
    Incoloy® 825 N08825 2.4858 B564 N08825  
    Inconel® 600 N06600 2.4816 B564 N06600 A494 CY40
    Inconel® 625 N06625 2.4856 B564 N06625 A494 CW 6MC
    Hastelloy® B2 N10665 2.4617 B564 N10665 A494 N 12MV
    Hastelloy® B3 N10675 2.46 B564 N10675  
    Hastelloy® C22 N06022 2.4602 B574 N06022 A494 CX2MW
    Hastelloy® C276 N10276 2.4819 B564 N10276  
    Hastelloy® C4 N06455 2.461 B574 N06455  
    Titanium GR. 1 R50250 3.7025 B381 F1 B367 C1
    Titanium GR. 2 R50400 3.7035 B381 F2 B367 C2
    Titanium GR. 3 R50550 3.7055 B381 F3 B367 C3
    Titanium GR. 5 R56400 3.7165 B381 F5 B367 C5
    Titanium GR. 7 R52400 3.7235 B381 F7 B367 C7
    Titanium GR. 12 R53400 3.7225 B381 F12 B367 C12
    Zirconium® 702 R60702   B493 R60702  
    Zirconium® 705 R60705   B493 R60705  

     

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