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Gas Pressure Regulator HON 330.
Application • Direct-acting gas pressure regulator (GPR) (working without auxiliary power) with incorporated SSV for commercial and industrial gas installations as well as local supply systems • Particularly well-suited for dynamic processes (e.g. gas furnaces, burner circuits, gas engine operations) • Can also be used as an equipment part for gas consumer facilities pursuant to EC Directive (90/396/EWG) • As gas pressure regulator with electrical setpoint follower (motorized actuator) and pneumatic setpoint follower • Can be used for gases according to DVGW worksheet G 260 and neutral non-aggressive gases; other gases upon request
Features • Design inherently pressure-tight (IS) • GPR with integrated SSV, optionally SBV for gas leakage quantities as well as variant with safety diaphragm • Large inlet pressure range • Installation of different valve seat diameters possible • Maintenance-friendly due to replaceable functional units (pluggable design) • SSV optionally function class A or B • Pressure compensation valve (inner circumference) incorporated in SSV actuator;
Variants, optionally • Without SSV • With SSV - manual triggering • With SSV - electromagnetic remote triggering • With electrical position display for SSV "Closed" using inductive proximity initiator and intrinsically safe power circuit • Regulator system with leakage gas SBV (pd up to 0.5 bar) or safety diaphragm • With HON 915 breather valve (SSV/RE) or HON 919 switching valve (SSV) • With noise reduction
The direct-acting (working without auxiliary power) HON 330 gas pressure regulator has the task of keeping the outlet pressure of a gaseous medium in a connected outlet side pipeline (regulated segment) largely constant, independent of interfering influences such as changes in inlet pressure and/or gas takeoff The regulator consists of an actuator housing and the functional units "GPR with regulation system" and SSV controller/switching unit.
After the screw fasteners are loosened, the complete functional unit can easily be removed from the "GPR actuator housing" and subjected to a visual inspection during maintenance rounds. In case of a defect, it is possible to replace the functional units quickly with tested replacement units and move the required maintenance work from the gas pressure regulator into the workshop.
The actuator of the regulator system can have different valve seat diameters. The valve seat variants are pressureequalized. Regulator system can optionally be equipped with a leakage gas SBV or a safety diaphragm. The outlet pressure to be regulated is guided to the GPR regulator system and the SSV controller via measurement lines.
The compensation diaphragm of the regulator records the actual value of the outlet pressure and compares it with the set value specified by the setpoint spring. A regulation deviation has a direct influence through the valve rod to the actuator position. The resulting change in flow causes an equalization of the actual outlet pressure value with the setpoint. At zero consumption, the device seals tight and the closing pressure is set.
The actuator of the safety blocking valve on the inlet side blocks the gas flow when the outlet pressure in the regulated segment exceeds or falls below a certain trigger pressure. In this process, the SSV measurement diaphragm with the switch sleeve moves into the appropriate ratchet position, the ball ratchet mechanism releases the SSV valve rod, and the SSV actuator closes. The SSV can only be ratcheted into the open position by hand when the outlet pressure at the measurement point differs from the trigger pressure setpoint by the specified re-engagement differences for excess pressure and pressure deficit. The SSV can optionally also be equipped with a manual and a remote trigger. It can optionally also be designed in function class A (with diaphragm break safety) or B (without diaphragm break safety).