Forged Bellows Sealed Gate Valve

[Forged steel bellows gate valve]

1.The key component of the metal bellows, the lower end and the valve stem assembly are automatically welded, and the upper end is automatically welded to the connecting plate, forming a metal barrier between the fluid medium and the atmosphere to ensure the valve stem Zero leakage.

2.The valve disc adopts a conical design, the sealing surface and the medium are streamlined, the sealing performance is better, and the service life is longer;

3.Double sealing design (bellows + packing) If the bellows fails, the stem packing will also avoid leakage and meet international sealing standards;

4.The valve cover has its own grease joint, which can directly lubricate the valve stem, nut and shaft sleeve, unlike the traditional one that only lubricates the thread;

5.Ergonomically designed handwheel, longer service life, easy and convenient operation, safer and more reliable;Forged steel bellows gate valve applications: petroleum, chemical, pharmaceutical, fertilizer, power and other industries.

Application Specification

1. Design and manufacture: BS5352; MSS-SP-177

2. Connection end size:

(1), the socket size according to ANSIB16.11; JB/T1751

(2) The thread end size is in accordance with ANSIB1.20.1; JB/T7306

(3) The size of butt welding end is in accordance with ANSIB16.25; JB/T12224

(4) The flange end size is in accordance with ANSIB16.5; JB79

3. Valve inspection experiments: AP1598; GB/T13927; JB/T9092

4. Structural features: bolted bonnet (B.B) and rising rod bracket (OS&Y) or welded bonnet (W.B) and rising rod bracket (OS&Y)

5. The material is in accordance with ANSI/ASTM regulations

6. Material: main material A105; 304(L); 316(L)F347; F321

7. Bellows material: 304, 321, 316, Inconel625, Hastelloy C276, Monel, etc.