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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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News

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...

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...

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...

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 ...

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.

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...

18''RF WCB Butterfly valve

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

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,...

VELAN VTP-2000 Ball Valve

A high performance ball valve with an affordable price Velan Inc., a leading manufacturer of high quality industrial valves for a broad range of indus...
Product description:
Features:
A one-piece integral forging incorporating up 3 ball valve or mixture of ball and needle design
Improved safety : leak paths reduced by up to 60%
Reduced costs : installation and component costs saving up to 70%
Reduced weight : up to 80%
Reduced susceptibility to problems caused by vibration.
Bi-directional
Floating ball principal with dynamic response seats featuring inherent self relief
Anti blowout stem
Anti static design as standard
Low torque operation
Fire safe designed to meet BS 6755/API 607,(optional)

Design Standards:
ANSI / ASME B 16.34 - Designed to meet the pressure and temperature requirements
ANSI / ASME B 16.5 - Flange dimensions
ANSI / ASME B 1.20.1 - National pipe threads
API 607 / BS 6755 - Fire safe designed

Material and pressure rating:
316 Stainless steel construction.
Maximum cold working pressure rating 6,000 psig(414 bar) with PTFE (-54°C to 204°C) seats.
Maximum cold working pressure rating 10,000 psig(689 bar) with PEEK (-54°C to 232°C) seats.

Double block and bleed valve

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 Level operate 1500LB 3/4 inch F316 RF flange ends 2 floating balls double block and bleed valve manufacturer

Level operate 1500LB 3/4 inch F316 RF flange ends 2 floating balls double block and bleed valve

DBB ball valve specifications: Design & manufacturer standard: API6D Temperature and pressure :ASME B16.34 Face to face dimensions: manufacturer stand... More
China Handle 3000psi 1 1/4 inch ASTM A105 SAE ends 2 floating balls and 1 needle valve double block and bleed valve manufacturer

Handle 3000psi 1 1/4 inch ASTM A105 SAE ends 2 floating balls and 1 needle valve double block and bleed valve

DBB ball valvespecifications: Design & manufacturer standard: ASMEB16.34 Marking :MSS AP-25 Temperature:-29~150°C Medium: water, oil & gas Pressure t... More
China Handle 1 1/4 inch 3000psi ASTM A105 SAE end 2 floating balls and 1 needle valve DBB (double block and bleed) valve manufacturer

Handle 1 1/4 inch 3000psi ASTM A105 SAE end 2 floating balls and 1 needle valve DBB (double block and bleed) valve

DBB ball valve specifications: Design & manufacturer standard: ASMEB16.34 Marking :MSS AP-25 Temperature:-29~150°C Medium: water, oil & gas Pressure ... More
China Handle 1inch 6000psi ASTM A105 SAE end 2 floating balls and 1 needle valve DBB (double block and bleed) valve manufacturer

Handle 1inch 6000psi ASTM A105 SAE end 2 floating balls and 1 needle valve DBB (double block and bleed) valve

DBB ball valvespecifications: Design & manufacturer standard: ASMEB16.34 Marking :MSS AP-25 Temperature:-29~150°C Medium: water, oil & gas Pressure t... More
China Handle 1'' 6000psi ASTM A105 SAE connection 2 floating balls and 1 needle valve DBB (double block and bleed) valve manufacturer

Handle 1'' 6000psi ASTM A105 SAE connection 2 floating balls and 1 needle valve DBB (double block and bleed) valve

DBB ball valve specifications: Design & manufacturer standard: ASMEB16.34 Marking :MSS AP-25 Temperature:-29~150°C Medium: water, oil & gas Pressure ... More
China manual operate 2'' 1500LB ASTM A 182 F55 RTJ connection 2 floating balls and 1 needle valve DBB (double block and bleed) valve manufacturer

manual operate 2'' 1500LB ASTM A 182 F55 RTJ connection 2 floating balls and 1 needle valve DBB (double block and bleed) valve

Product description: CowinnsDouble block and Bleed valve solutions: Cowinnsdouble block and bleed valve is consist of 1 piece forged body. And availab... More
China 2'' 6000psi 45# steel SW ends level operated double block & bleed ball valve with needle drain valve manufacturer

2'' 6000psi 45# steel SW ends level operated double block & bleed ball valve with needle drain valve

Materiallist: Body&bonnet:45#steel Ball:A276410 Seat:PPL Stem:A275410 O-Ring:Viton Needlevalve:SS304 Formore details please contact with us to apply f... More
China 3* 1 1/2'' 300LB ASTM A 182 F316 RF flange ends level operated double block & bleed ball valve manufacturer

3* 1 1/2'' 300LB ASTM A 182 F316 RF flange ends level operated double block & bleed ball valve

Product description: SPECIFICATION Design codes ANSI / ASME B 16.34 - Designed to meet thepressure and temperature requirements ANSI / ASME B 16.5 - F... More
China 1'' 2500LB ASTM A 182 F316 RTJ connection level operated ball valve manufacturer

1'' 2500LB ASTM A 182 F316 RTJ connection level operated ball valve

Productdescription: SPECIFICATION Design codes ANSI / ASME B 16.34 - Designed to meet thepressure and temperature requirements ANSI / ASME B 16.5 - Fl... More