Δ. Materials for main parts
S/N | Description | Materials | Assy Qty | |||||
Type A | Type B | Type C | Type D | Type E | Type F | |||
1 | Body | A105+Zn plating | LF2+Zn plating | 4140+Zn plating | 304 | 316 | F51 | 1 |
2 | Bonnet | 1 | ||||||
3 | Steel ball | 440C | 440C | 440C | 440C | 440C | Monel | 1 |
4 | Spring seat | 410/420 | 410/420 | 410/420 | 304 | 316 | F51 | 1 |
5 | Spring | 410/420 | 410/420 | 410/420 | 304 | 316 | X-750 | 1 |
Δ. Specification
S/N | NPT thread size | Type | Length | Material size | |
S1 | S2 | ||||
1 | 1/8"-27NPT | GVC0-B | 50,55,60……180 | 31.8 | 25.4 |
2 | 1/4"-18NPT | GVC0-C | 50,55,60……180 | 31.8 | 25.4 |
3 | 3/8"-18NPT | GVC0-D | 50,55,60……180 | 31.8 | 25.4 |
4 | 1/2"-14NPT | GVC0-E | 50,55,60……180 | 31.8 | 25.4 |
5 | 3/4"-14NPT | GVC0-F | 50,55,60……180 | 31.8 | 28.5 |
6 | 1"-111/2NPT | GVC0-G | 50,55,60……180 | 31.8 | 35 |
Δ. Technical parameters
Item | Parameters | Remarks |
Shell liquid test pressure | 35~135MPa | No leakage under the pressure in 3 minutes |
Seal liquid test pressure | 35~135MPa | No leakage under the pressure in 3 minutes |
Gas test pressure | 0.6MPa | No leakage under the pressure in 3 minutes |
Suitable temperature | -50℃~200℃ | according to material properties |
Suitable medium | liquid or gas |
Δ.Application:
The grease fittings can be installed at the sealing parts of the valve seat and stem. The sealing grease can be injected by the grease filling valve to play the role of a temporary seal when the sealing parts begin to leak due to wear or other causes, in order to take timely remedial measures.
Δ.Note:
1. surface treatment: Fe/Ep\Zn8
2. the other requirements of customers could be satisfied, including material, material specification, outside size, length, connecting thread, surface treatment, etc.
3. product surface was identified according to the actual material.