Low temperature series welding metal bellows
The YH670 is an all Hastelloy C, rotating bellows seal, providing high strength and excellent corrosion resistance, It is extremely durable in applications where temperature and media(fluid) result in an aggressive environment.
The YH670 has been tested per API-682 YHB seals for low-temperature refinery services. Other common applications include acids, caustics, amines, and products with H2S, such as sour water and sour hydrocarbons.
The YH670 can be designed as a dual seal using a non-prssurized buffer or pressurized barrier fluid. A pumping ring recirculates barrier fluid, assuring cooler operating temperatures and extended reliable performance.

Material:
1. Bellow: Hastelloy-C
2. metail parts: Hastelloy-C
3. Mating face: Tungsten carbide, carbon, silicon carbide YG6/YG8
4. Packings: Viton, EPR, Teflon, Encapsulated Viton, Buna-N, Kalrez
Specifications:
1. Temperature -75° C~200° C
2. Pressure: Vacuum to 2.0Mpa
Vacuum to 6.0Mpa (double bellow)
3. Speed≤ 25MPs.

Attension:
The above price is a reference price, if you want to get the latest price, please contact us. We will provide the best price and product quality.
We can customize products according to customer requirements and provide the best technical support.
We provide a formal commercial invoice.