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the D25403 is the designated K-2110 pilot valve kit for all standard GP-2000 pressure reducing valves
ensuring optimal refrigerant flow and cycling
As the direct replacement for 311788
Always verify the part number against your unit's wiring diagram or the OEM parts list
inconsistent actuator movement
Siemens Building Technology 188-0030 Thermostat Refrigerant the D25403 is the designatedThe Siemens 188 0030 is a heavy duty unit mounted pneumatic thermostat designed specifically for high low temperature control in HVAC terminal units like fan coils and induction units. This TH 188 HC model features a direct acting (DA) heating and reverse acting (RA) cooling sequence, making it a critical component for two pipe changeover systems. Engineered with a bimaterial sensing element, it provides reliable proportional control and pneumatic
US$ 30.00
US$ 70.00
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US$ 70.00