Specification:

1.Thermoking HF680-1 3/4"

2. High quality guarantee.

3. Fast delivery

4. Excellent performance 
5. ISO9001/TS16949certification 
6. Durable lifetime 
7. Competitive price

8. automobile/industry/chemical area etc.

Operating Limit:

A) Pressure: ≤vacuum 20kg/cm2

B) Speed: ≤25m/s

C) Temperature: -75°c~+200°c

Material:

1. Stationary Ring( CA)

2. Rotary Ring( SS)

3. Rubber Parts( HNBR)

4. Spring (steel)