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Cowinns Industry Equipment Co.,Ltd
No.127 Room No.748 Changjiang Road,High-Tech District,
Suzhou City, Jiangsu Province, zip:215128 China
Tel:+86 512 6878 1993 
Fax:+86 512 6818 4193
Mob&what's app:+86 153 0620 9257 
Email:info@cowinns.com
www.cowinns.com
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Introduction to PID Diagram Knowledge of Valve Industry

Introductionto PID Diagram Knowledgeof Valve Industry PID diagram is thetechnical core of factory production. Whether it is an engineer from a designi...

The difference between DBB, DIB-1, DIB-2

Two types of seat sealing structures commonto trunnion mounted ball valves. 1. Double block and bleed valve A valve with two valve seat sealing pairsc...

True Meaning of Double Block and Bleed

It’s time to do maintenance ona section of process. You don't want to shut down the entire facility, so youdecide to block off and depressurize just ...

Gaskets Are Not Created Equal

Gaskets are near the bottom of the food chain of valve components; trim, body materials and packing seem to get a lot more press. But gaskets serve an...

18''RF WCB Butterfly valve

Customized top connection dimensions 18'' RF WCB butterfly valve  supplied to power plant service for high temperature steam pipeline 

LNG: Significant opportunities for cryogenic valves

Quenching the world’s thirst for energy while mitigating climate change and air pollution is one of the greatest challenges of the 21st century. Natu...

China (Shanghai) International Fluid Machinery Exhibition (2)

China (Shanghai)International Fluid Machinery Exhibition (2) The China(Shanghai) International Fluid Machinery Exhibition is one of the mostsignifican...

Check valve the most important valve in the process system

Checkvalve: the most important valve in the process system Mainfunctions and functions of check valve: Theyonly allow fluid to flow in one direction. ...

Why PTFE-Lined valves should be cossetted

“Every day is a learning opportunity”, is a saying which is often heard here in the Valve World editorial department. After all, the valve industry is so diverse, and the number of applications so huge, that no-one (and certainly not a humble editor!) can possibly hope to know everything.

Valve maintenance on its way to the cloud

Edited by Constanze Schmitz, Analyst ARC Advisory Group Europe ___ In the process industries, one of the most important, yet often over-looked assets,...

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China Handle wheel operated DN20 PN16 ASTM B182 F304 forged hard seat  RF connection cryogenic globe valve manufacturer

Handle wheel operated DN20 PN16 ASTM B182 F304 forged hard seat RF connection cryogenic globe valve

Product description: Products range Valve Type : Gate valve, Globe valve ,Check valve , Butterfly valve, Ball valve Pressure rating:150-2500LB (45MPa)... More
China Level operated 3/4''*1/2'' 600LB ASTM A 182 F55 RF connection 3 balls DBB (double block and bleed) valve manufacturer

Level operated 3/4''*1/2'' 600LB ASTM A 182 F55 RF connection 3 balls DBB (double block and bleed) valve

Productdescription: Features: A one-piece integralforging incorporating up 3 ball valve or mixture of ball and needle design Improved safety : leakpat... More
China Handle operated 2'' 2500LB ASTM A 182 F316 RTJ connection 3 pc double block and bleed ball valve manufacturer

Handle operated 2'' 2500LB ASTM A 182 F316 RTJ connection 3 pc double block and bleed ball valve

Product description: Features: A one-piece integral forging incorporating up 3 ball valve or mixture of ball and needle design Improved safety : leak ... More
China Handle operated 1/2'' 150LB ASTM B348 Gr. F-2 PTFE seat floating NPT connection 3 pc ball valve manufacturer

Handle operated 1/2'' 150LB ASTM B348 Gr. F-2 PTFE seat floating NPT connection 3 pc ball valve

Product description: ASME B16.34,ISO 17292 design standard Features: Blow-out Proof Stem The lower end of the stem is T-shaped structured, protected ... More
China Handle operated 2'' 150LB ASTM B148 UNS C95800 casting PTFE seat floating FF connection 2 pc ball valve manufacturer

Handle operated 2'' 150LB ASTM B148 UNS C95800 casting PTFE seat floating FF connection 2 pc ball valve

Product description: ASME B16.34,ISO 17292 design standard  Features: Blow-out Proof Stem The lower end of the stem is T-shaped structured, protected ... More
China Worm gear operated with handle wheel DN150 PN63 A182 F316 hard face trunnion mounted full port RF connection 3 pc ball valve manufacturer

Worm gear operated with handle wheel DN150 PN63 A182 F316 hard face trunnion mounted full port RF connection 3 pc ball valve

Product description: GB/T 12237 design standard  Features: Split body, forged steel , side entry design Anti Blow-out Stem: The stem is made separatel... More
China Level operated 3/4'' 1500LB A182 F91 hard face floating reduce port RF connection ball valve manufacturer

Level operated 3/4'' 1500LB A182 F91 hard face floating reduce port RF connection ball valve

Product description: API 6D design standard  Face to face according to ASME B16.10 Ends according to ASME B16.5 Features: Sealing structure of the sea... More
China Pneumatic 8'' 150LB CF8M metal to metal seat triple off set RF connection butterfly valve manufacturer

Pneumatic 8'' 150LB CF8M metal to metal seat triple off set RF connection butterfly valve

Product description: API 609 design standard  Principle of operation: The Cowinns triple off set butterfly valve provides a bi-directional bubble tigh... More
China 20'' 150LB C95800 RF connection axial flow/ Venturi check valve manufacturer

20'' 150LB C95800 RF connection axial flow/ Venturi check valve

Product description: Cowinns Venturi check valve, the disc is the only moving part to minimize internal wear, and the configuration of disc, seating a... More
China 6'' 150LB Zirconium dual plate wafer check valve manufacturer

6'' 150LB Zirconium dual plate wafer check valve

Product description: Cowinns dual plate wafer check valve has a shorter face-to-face dimension and dual plate design, the end connection options inclu... More
China 1 '' A105+Alloy 20 150 LB RF Flag Piston Valve manufacturer

1 '' A105+Alloy 20 150 LB RF Flag Piston Valve

Design standard: API602Inspection and Test: API 598Face to face: ASME B16.10Final connection size: HG/T 20615 The Piston control valves have a wide ra...

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China 1/2'' ASTM A381 F2 150LB FF Flange piston check valve manufacturer

1/2'' ASTM A381 F2 150LB FF Flange piston check valve

Product description: Pistoncheck valve Body:ASTM A381 F2 Bonnet:ASTM A381 F2 Disc:ASTM A381 F2 Gasket:Graphite Bolt:ASTM A193 B8 Nut:ASTM A194 8 Sprin... More
China 8'' 900LB WC6 pressure seal BW bypass gate valve manufacturer

8'' 900LB WC6 pressure seal BW bypass gate valve

Vlave description: Body material:A217 WC6 Wedge:A217WC6+TL6 Stem:A182 F6a SeatRing:F11+STL 6 Pin:A108 1035 Bonnet:F11+316 Packing:Flexible graphite S... More
China 4'' 900LB WC6 pressure seal BW bypass gate valve manufacturer

4'' 900LB WC6 pressure seal BW bypass gate valve

Material list: Bodymaterial:A217 WC6 SeatRing:F11+STL 6 Wedge:A217WC6+TL6 Stem:A182 F6a Bonnet:F11+316 Sealring:304+Graphite Pin:A108 1035 Packing: Fl... More
China 4'' 900LB WCB stem pipe pressure seal BW check valve manufacturer

4'' 900LB WCB stem pipe pressure seal BW check valve

Productdescription: BS1868 design standard Flangeends dimensions : ASME B16.25 Pressuretest: API 598 Temperature:-29 ~ 250°C Bodymateria:A216 WCB Dis... More
China 8'' 900LB WC6 High temperature high pressure seal BW check valve manufacturer

8'' 900LB WC6 High temperature high pressure seal BW check valve

Productdescription: BS1868 design standard Flangeends dimensions : ASME B16.25 Pressuretest: API 598 Temperature:-29 ~ 538°C Bodymateria:A217 WC6 Dis... More
China 3inch 600LB WCB RF flange manual gate valve manufacturer

3inch 600LB WCB RF flange manual gate valve

Structure andmaterial list: Body and bonnet: ASTM A216 GR.WCB Wedge: ASTM A216 GR.WCB+STL#6 Stem: ASTM A182 GR F6a Gasket: SPW SS304+Graphite Packing ... More
China 4'' 2500LB A182 F36 BW end ABB positioner flow rate control valve manufacturer

4'' 2500LB A182 F36 BW end ABB positioner flow rate control valve

Design standard: IEC60534 Shelltest pressure:64 Mpa Packingtest pressure:47 Mpa Seattest pressure:37 Mpa Positioner:ABB Regulator:YTC  solenoidvalve: ... More
China stainess steel butterfly valve manufacturer

stainess steel butterfly valve

DN1600 PN16 CF8 + EPDM seat double flange worm gear handle wheel butterfly valve Product description: Design standard: EN 593 End: double RF flange Op... More
China DN1600 PN16 CF8 + EPDM seat double flange worm gear handle wheel butterfly valve manufacturer

DN1600 PN16 CF8 + EPDM seat double flange worm gear handle wheel butterfly valve

DN1600 PN16 CF8 + EPDM seat double flange worm gear handle wheel butterfly valve Productdescription: Design standard: EN 593 End: double RF flange Ope... More
China 150LB 10'' ASTM B381 F2 ball valve RPTFE seat RF flange full port floating worm gear hand wheel ball manufacturer

150LB 10'' ASTM B381 F2 ball valve RPTFE seat RF flange full port floating worm gear hand wheel ball

Material list: Bodyand bonnet: ASTM B381 F2 Seat:ASTM RPTFE Ball:ASTM B381 F2 O-ring:CITON Gasket:Graphite+SS316 Bolt:ASTM A193 Gr B7 Nut:ASTM A194 2H... More
China 10'' 150LB ASTM B381 F2 ball valve RPTFE seat RF flange full port floating worm gear hand wheel ball manufacturer

10'' 150LB ASTM B381 F2 ball valve RPTFE seat RF flange full port floating worm gear hand wheel ball

Material list: Bodyand bonnet: ASTM B381 F2 Seat:ASTM RPTFE Ball:ASTM B381 F2 O-ring:CITON Gasket:Graphite+SS316 Bolt:ASTM A193 Gr B7 Nut:ASTM A194 2H... More
China Handle wheel operated DN50 PN100 CF8  hard seat  RF connection cryogenic globe valve manufacturer

Handle wheel operated DN50 PN100 CF8 hard seat RF connection cryogenic globe valve

Cryogenic gate valve, cryogenicglobe valve: Design Standard: API602, BS 6364 Testing Standard: API598, BS 6364 Size range: 1/2”~6” Class range: 150... More
China Y type 1/2'' F316H 4500LB BW globe valve hand wheel operate manufacturer

Y type 1/2'' F316H 4500LB BW globe valve hand wheel operate

Productdescription: Ytype globe valve Overall one-piece overall forged ,Butt weld ,Rising Stem Stelliteoverlay seat surface Stelliteoverlay plug Bodym... More
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