We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate within our success for Special Design for China DN20 Light Type Brass Gate Valve for Water ISO900 Standard Brass Forged Body PPR Pipe Fittings, Our firm has already build a experienced, creative and responsible crew to establish customers with the multi-win principle.
We rely upon strategic thinking, constant modernisation in all segments, technological advances and of course upon our employees that directly participate within our success for China Gate Valve, Forged Steel Gate Valve, Many years of work experience, we’ve got realized the importance of providing good quality products and solutions and the best before-sales and after-sales services. Most problems between suppliers and clients are due to poor communication. Culturally, suppliers can be reluctant to question things they do not understand. We break down all those barriers to ensure you get what you want to the level you expect, when you want it. faster delivery time and the product you want is our Criterion .
Valve characteristics
1. The fluid resistance of eccentric hemispherical valve is small, and its resistance coefficient is equal to that of the same length pipe section.
2. It has simple structure, small volume and light weight.
3. Tight and reliable. At present, the sealing surface materials of ball valves are widely used in plastics and have good sealing performance. They have also been widely used in vacuum systems.
4. Eccentric structure design, the valve opens quickly away from the seat, reduces friction, and improves service life;
5. Easy maintenance, simple structure of ball valves, sealing rings are generally movable, disassembly and replacement are more convenient;
6. When the eccentric hemisphere valve is fully open or closed, the sealing surface of the sphere and seat is isolated from the medium. When the medium passes through, the erosion of the sealing surface of the valve will not occur.
7. It can be used in a wide range of applications, ranging from small to several millimeters in diameter and from high vacuum to high pressure.
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Valve type
Upper eccentric hemisphere valve series models are DYQ340H, DYQ340Y, DYQ340F; Side eccentric hemisphere valve series models are PQ640H, PQ640Y, PY640F.
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performance parameter
Working pressure(MPa) | 1.6~10.0 (Calss150-Calss600) | |
caliber(mm) | DN15-DN1200 1/2¡ÃƒÂ¥-48¡å | |
Applicable medium | Water, oil, gas, acetic acid, nitric acid and other media | |
Material | valve body | WCB CF8 CF8M CF3 CF3M |
sphere | WCB CF8 CF8M CF3 CF3M | |
Stem | 2Cr13 F304 F316 F304L F316L | |
Sealing surface | PTFE RPTFE PEEK  Stellite Tungsten Carbide | |
filler | Flexible graphite |
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Executive standard
Design Specification: API 6D API 608 BS 5351 GB/T12237
Structure length: ASME B16.10 GB/T12221
Flange connection: ASME B16.5 GB/T9113
Test and Inspection: GB/T 13927 API 598 API 6D