kalka
Posts : 116 Join date : 2010-04-30
| Subject: What is a Forged steel ball valve? Tue Jan 11, 2011 2:19 am | |
| Forged steel ball valve is mainly used in oil, gas of long distance pipeline transfer and city gas pipeline system. Because of long distance pipeline with the specific characteristics, the valve in the design has fully considered the bear pipe stress ability, as well as safety, weathering, long-term use of reliability, etc. And a forge steel API ball valve utilizes forge steel, and can meet the valve standards from API - the American Petroleum Institute. The American Petroleum Institute, commonly referred to as API, is the main U.S trade association for the oil and natural gas industry, representing about 400 corporations involved in production, refinement, distribution. API's publications are developed by member company engineers and other professionals. API definite a variety of standards, among them API SPEC 6D is definite for the ball valve. | |
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