Forged Steel Bellows Seal Gate Valve

Waits Valve high quality Forged Steel Bellows Seal Gate Valve adopts metal bellows and packing double seal design. Fully automatic welding prevents leakage - even if the bellows fails, the packing can ensure emergency sealing. It is very suitable for flammable, explosive, ultra low temperature liquefied natural gas projects and highly corrosive chemical pipelines.

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Product Description

Waits Valve durable Forged Steel Bellows Seal Gate Valve combines the advantages of bellows seal and gate valve technology. The bellows assembly is its core component and provides dynamic sealing. It not only enhances the sealing performance and prevents the medium from leaking through the valve stem, but also reduces the wear of the valve stem.

In certain chemical processes, the fluid in the pipeline is usually toxic, radioactive and dangerous. Bellows sealed valves are used to prevent any toxic chemicals from leaking into the atmosphere. The bellows can be made of different materials, such as 316Ti, 321, C276 or Alloy 625. The valve body material can be selected from all existing materials.

Our bellows sealed gate valves provide forged or cast valves, special materials and short delivery time.

Benefits include:

Long bellows cycle life - 3000 cycles

Non-rotating stem prevents bellows twisting.

Two secondary stem seals: a) open position back seat; b) graphite packing.

The Forged Steel Bellows Seal Gate Valve has a cobalt chrome hardened seat surface that is ground and lapped.

Implementation Standards-Forged Steel Bellows Seal Gate Valve
Design Standards	API602, ‌BS 1414 DIN
Connection Standards	ASME B16.5, ASME B16.47-A/B, EN1092-1/2
Connection	RF, RTJ
Test Acceptance	API 598 EN12266
Structure Length	API6D, ASME B16.10, EN558
Pressure and Temperature Ratings	ASME B16.34
Fire Test	API607, API6FA
Low Leakage Standard	API 622
Anti-Corrosion Design	NACE MR 0175

Application-Forged Steel Bellows Seal Gate Valve
Size	3/8" - 2"
Pressure Range	Class 150 - 900 PN1.0 - PN16.0 MPa
Temperature Range	-29°C ~ 500°
Application	Oil and gas extraction and transportation, refining process, sulfuric acid, nitric acid and other hazardous chemicals pipeline systems, boiler water supply control system and high-temperature steam pipeline, nuclear power plant coolant circulation system, etc.
Drive Mode	Handwheel, bevel gear, electric, pneumatic, etc.
Valve Body/Valve Cover	Forgings: A105, A182 F304, F304L, F316, F316L, F51, F53, B148, A350 LF2, LF3, LF5,
Sealing Surface	Body, body cladding iron-based alloy, cladding hard-based alloy
Valve Stem	Forgings: A105, A182 F304, F304L, F316, F316L, F51, F53, B148, A350 LF2, LF3, LF5, Monel,
Filler	Flexible graphite, polytetrafluoroethylene...

Key Product Notes

1. When you get the Forged Steel Bellows Seal Gate Valve, please install it in the correct direction and follow the flow direction mark. Use the appropriate tools and pay attention to the torque when connecting.

2. Do not overtighten, the bellows are sensitive. Excessive force may damage the seal.

3. Please stay within the rated range and avoid exceeding the maximum pressure or temperature to prevent malfunction.

4. Check regularly to check whether the Forged Steel Bellows Seal Gate Valve has wear, corrosion or leakage, otherwise it will be hard to say if an accident occurs while you are working.

5. If operation is difficult, stop operation and check for blockage or damage. Do not force operation.

6. Choose compatible materials according to the type of media (steam, oil, chemicals) to avoid corrosion.

7. Protect in harsh environments, use coatings or insulating materials in wet or corrosive areas.

Forged Steel Bellows Seal Gate Valve