Product Description Features: 1. Design & Manufacture: GB12235 2. Face to Face Dimension: GB12221 3. Flanged Dimension: GB4216 4. Inspect and Test: GB/T13927 5. Suitable Temperature: v≤185, ≤100, ≤120, ≤150 (Depends on lining material) 6. Type of operation: Worm Gear, Pneumatic, Electric.