Zhejiang HongWang Valve & Fittings Co., Ltd. is a high-tech valve enterprise maily producing piece ball valves, flanged ball valves, three-way ball valves, gate valves, globe valves, filters, check valves, pneumatic electric valves, pneumatic angle seat valves, precision casting, fittings and other products. The products can be manufactured according to GB, API, ANSI and BS standards according to different requirements. The materials are carbon steel, stainless steel, low temperature steel, alloy steel, high temperature resistant, ultra high temperature special steel, etc; transmission methods can be selected manually, worm gear transmission, pneumatic, hydraulic, electric, etc.
    We always takes high quality and honesty as the main line, and adhere to our business philosophy of "honesty, customer first". We will continue to apply new technologies, processes and materials, and actively develop new varieties to provide high-quality valve products and better future servise. 

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FAQ 
1. Could you produce customized product? 
     Yes, we could do various customized valves conform to require drawing or sample. 

2. How to ensure the valve quality? ? 
     A. Firstly, we inspect the casting when get it one by one and will abandon it if defect castings. Such as blowholes&pinholes is defects castings. 

     B. We will inspect and check about valve dimension after machining. Allowable error to standard is 1.5mm for longth(above DN50 valves)

     C. All items must be inspected by hydraulic test after assemble. And more important ensure that valves are inspected by operator in according with hydraulic test                     criteria including pressure&time. 

     D. Coat oil for anti-rust inside of the valve body and paint checking. 

3. How is your valve warranty period? 
    Usually, the warranty period for valves is 14 monthes, however, we will solve or replace new valves once find fault items to our old stock customers no matter how long.