solenoid controlled pressure reducing valve a Pressure Reducing Pilot Valve b Ball Valves c In-line Finger Filter d Solenoid Pilot Valve e Pressure Gauge f Adjustment Bolt description Armaş“PREL” model pressure reducing valve is the hydraulic control valve which reduces high upstream pressure value into desired lower pressure value. Control of main valve is achieved by means of built-in 3/2 -way solenoid pilot valves. Electric signal for solenoid pilot valves is ensured by means of a control device, time relay, main switch and PLC control units etc. Automated control may be easily ensured by this way in application systems. installation • Connect cables of solenoid pilot valve in accordance with control device. • Make sure that valve is on a level with the pipeline while mounting it. • Mount valve in direction of arrow indicated on it. • It is recommended that insulation valves (butterfly or gate valves etc.), air relief valve, quick pressure relief valve (QR) and strainer valves will be used in line-mounting of valve (See sample montage illustration). • During pressure decrease, cavitation risk is dangerous for valve body. Adjust downstream pressure value by referring cavitation data or consult our technical service. 2 Air Valve 3 Watermeter 4 Filter 5 Solenoid Controlled Pressure Reducing Valve

adjustment • Operate pump, open main valve on network and deliver water to the system. • Open ball valve indicated with "b1" Close ball valve indicated with "b2" • Adjust desired downstream pressure value by means of adjustment bolt indicated with Ton pilot valve indicated with "a"by referring pressure gauge indicated with "e" • After adjusting desired downstream pressure value, tighten contra nut below adjustment bolt. Open ball valve indicated with "b2"and deliver water into system. Pressure gauge will show zero value alter opening "b2" valve. maintenance •System operating conditions that effect...