Needle Type Globe Valves and Accessories
General Features
Union Bonnet Needle Valves Type A1
Options see Ordering Information. Union Bonnet Needle Valves are designed for Severe Service. |
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 PTFE Packing is limited to 232°C (450°F). The respective maximum allowable pressure depends on the tube / pipe connection used. For further information please contact the factory. |
* Welded connections in material 1.4903 / F91 / 1.7335 / 1.7380 require post weld heat treatment (PWHT) at around 700 - 750°C. The valve head unit must be removed prior to the heat treatment to avoid damages. See the installation, operation and maintenance manual for instructions. We recommend to order These valves with 100 mm pipe extensions (Option V - Box 15) to avoid the removal of the valve head Units. | |||||||||||||||||||||||||||||