techniques such as injection molding, extrusion and blow molding. thermoplastic elastomers have replaced rubber in many applications, most importantly the automotive industry. there are six main thermoplastic elastomer groups found commercially; styrenic block copolymers, polyolefin blends (tpos), elastomeric...
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pilot is equipped with an adjusting screw [ ] to preset the desired upstream pressure and an integral needle valve [ ] to control the main valve closing speed. engineer specifications the pressure relief valve shall be both solenoid pilot and hydraulic pilot controlled. the main valve shall be an elastomeric...
close) configuration. the solenoid can be supplied in various voltages and specifications. the check valve [ ] traps high pressure peaks, ensuring that the valve remains locked in the closed position to maintain drip-tight sealing. engineer specifications ■ the valve shall be solenoid operated elastomeric...
pressure from entering the control chamber, allowing the main valve to latch open and water to flow into the system piping and to the alarm device. valve closed (set position) valve open (operating condition) engineer specifications ■ the deluge valve shall be a ul-listed, hydraulically controlled elastomeric...
from the main valve control chamber by the opened hrv- or the manual emergency release, allowing the main valve to open and water to flow into the system piping and to the alarm device (if mounted). engineer specifications ■ the on-off deluge valve shall be a ul-listed, electrically controlled elastomeric...
excessive heat. the released water also causes the alarm hydraulic relay valve (hrv- ) [ ] to open, allowing water to flow to the water alarm pressure switch high (psh) and/or water motor alarm gong [ ]. engineer specifications ■ the dry pipe control valve shall be a ul listed, pneumatically controlled elastomeric...
or the manual emergency release. the easylock prevents line-pressure from entering the control chamber, allowing the main valve to latch open and water to flow into the system piping and to the alarm device. engineer specifications ■ the deluge valve shall be a ul-listed, electrically controlled elastomeric...
pressure from entering the control chamber, allowing the main valve to latch open and water to flow into the system piping and to the alarm device. valve closed (set position) valve open (operating condition) engineer specifications ■ the deluge valve shall be a ul-listed, pneumatically controlled elastomeric...