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Pressure Sealed Swing Type Check Valve

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Product Detail

Product Tags

Products Design Features

Check valves are used in pipes under pressures betweenPN1.6-PN16.0MPa (Class 150~2500Lb)working temperatures-29-60C They are used in industries include oil,chemistry pharmaceutical fertilizer and power gene-ration to prevent the backward flux of the media.

The main structure features include:
1. The products feature a reasonable structure reliable seal good performance and nice modeling.
2. Either soft or hard seal can be selected for the product upon different working conditions The sealing face is built up with Co-based carbide alloy.leaving a better we-arability corrosion and scrap resistance and a longer duration.
3. Small opening pressure,the disc can be opened fully with a very small pressure differential.
4. Inside-set bolt-bearing structure reduces leakage and reliable use.
5. PN>16.0MPa(Class 1500),the middle cavity uses a seal-tightening sealing structure to have the sealing performance reinforced along with the pressure rise so as to ensure the sealing performance.
6. Different parts materials and different sizes for flange, butt-welding are available for sensible combination according to different working facts and customers requirements.

Products Performance Specification

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Technical Specification

Structural formation Pressure sealed swing type check valve
Driving reference GB API
Design standard GB/T 12236 API6D BS1868
Face to face GB/T12221 ASMEB16.10
Flanged ends GB/T12224 ASME B16.25
Test & inspection GB/T13927 JB/T9092 PI598API6D BS6755

Note: The sizes of valve connecting flange and butt-welding terminas can be designed according to customer's requirement.

Major Parts Material Form

No. Part name Material
  ASTM GB
1 Body WCB.WC1WC6WC9C5
CFBCFMCFCCF3F3M
WCB.WC1WC6WC9C5
CF8CF8MCF8CCF3CF3M
2 Disc WCB.WC1.WC.WC.C5
CF8CF8MCF8CCF3CF3M
WCB.WC1WC6.WC9.C5
CF8CF8MCF8C CF3CF3M
3 Seat A105 F11.F22.F5F9
F304F316 F321F304LF316L
251Cr18Ni9Ti0Cr18Ni12Mo2T20Cr1Mo1V
4 Rocker WCB.WC1WC6WCC5
CF8CFMCFBCCF3CF3M
WCB.WC1.WC6.WC9.C5
CF8CF8MCF8CCF3CF3M
5 Pivot Gr.F6aF22
F304F316 F321F304LF316L
1Cr13.2Cr13
06Cr18Ni11Ti06Cr18Ni12Mo2T
6 Bonnet A105F11F22F5F9
F304F316F321F304LF316L
251Cr18Ni9Ti06Cr18Ni12Mo2T20Cr1Mo1V 25Cr2MoV

7 Sealing Graphite Graphite
8 Cover WCB.WC1.WC6 WCC5
CFBCFMCFCCF3CF3M
WCB.WC1.WC6. WC.C5
CF8CFMCFBCCF3CF3M
9 Stud A193-B7A193-B8A193-B8M B16 35CrMoA25Cr2MoV0Cr18Ni906Cr17Ni12Mo2

10 Six angle nuts A194-2H A194-8A194-8M.7 45.35CrMoA25Cr2MoV06Cr19Ni1006Cr17Ni12Mo2

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