Ansi Gate Valve By Zhejiang Aolong Valve Making Co., Ltd.

Brief Description wedge type valve,opening stem,hidden stem wedge type, double disks gate valve,american gate valve(Screwed Gate Valve,Lengthen Ga

Detailed Description Characteristic:
1. The products feature a reasonable structure, reliable seal, good performance and nice modeling.
2. Co hard alloy welded sealing surface, which is wearing resistant, erosion proof , abrasion proof and long-lived.
3. The surface and the adjusting media of the valve shaft are nitrogenized so that it is erosion and abrasion resistant.
4. The material of the filling and the flange size can be chisen and matched according to the applications and the requirements of the user's. That can satisfies all kinds of working requirements.
5. There is backward sealing structure in the valve, so the sealing is reliable.
6. Middle cavity uses a self-tightening sealing structure to have the sealing performance reinforced along with the pressure rises so as to ensure the sealing performance.

Standards compliance
1.Design and Manufacture: API600
2. Face to face: ANSI B16.10
3. Flange connection: ASME/ANSI B16.5 ASME B16.47
4. Test and inspection: API598
Temperature : 425
Nominal pressure: 20PN
Size: 15-500mm
Medium: water, oil, gas, acid, alkali
Material: Carbon steel, ductile iron, stainless steel, American gate valve(Screwed Gate Valve,Lengthen Gate Valve, Electro motion Gate Valve)