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Cowinns quality goal is to provide products and service which not only meet,but exceed the expectat
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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 
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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...

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...

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.

18''RF WCB Butterfly valve

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

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. ...

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,...

Cowinns quality goal is to provide products and service which not only meet,but exceed the expectat

Cowinns quality goal is to provide products and service which not only meet, but exceed the expectations of our customers.

The technical R&D center of Cowinns makes use of the most advanced computer technology to enhance the quality of existing products and develop new valves. During the new product design period ,we introduce Auto CAD and Solidworks and adopt the advanced FEA technology to verify it the design of new products are feasible before they are put into batch production, so that their design and development time is greatly short and the safety of final products and their optimal cost structure are ensured.

The latest machining equipments were widely applied to manufacturing Cowinns valves, includes a batch of CNC machining tool (such as machining centers ,CNC horizontal lathes ,vertical lathes and drilling lathes) and ERP manufacturing resources integration management systems. We maintain an ISO9001 quality management system and continue to improve quality during each productions. Each suggestion from our customers will be appreciated.

Cowinns audit raw material suppliers strictly and conducts PMI and characteristics review for all in coming materials. In additional ,below testing items are performed on 100% of valves:

Visual and dimensional inspection of valve components.
Visual and dimensional inspection of assembled valves

High pressure hydraulic body and seat test
Low pressure air seat test