The mode of operation of the valve operation of the valve

Manual, worm gear, pneumatic (double acting or spring return), high-pressure pneumatic pipeline gas (direct)
Electric, hydraulic (double acting or spring return), and gas-liquid interaction. Gas-liquid interaction of local and remote control
SCADA system, and a satellite remote cooperates super multi-set value when the downstream pressure drop rate or duration
shut off solenoid valve, (Pipeline burst), emergency shut-off valve to automatically cut off, with emergency pressure accumulator for manual operation.
Pipeline ball valve connection ends designed to connect end according to customer requirements, flange connection end and welding ends. Flange connection end
With convex or annular groove dimensions, tolerances and finish, as well as drilling, flange faces, countersink holes, pour hole
Should be the following standard DN600 and below, according to ASME B16.5, DN550 MSS-SP44; DN650
On welding ends shall be ASME B16.47 Series A Section 434.8.6 ASME B31.4 or ASME B31.8.

mini solenoid valve