Alco Controls SOLENOID VALVES

200RB Solenoid Valves

The 200RB is a pilot-operated, 2-way, normally closed valve.
200RB valves are used for liquid, discharge, or suction gas
refrigerant service.
Valve Series Design Options
1 Add “T” to the end of description for Mounting Stud
2 Add “M” to the end of the description for Manual Stem

Features
• Can be converted for bi-flow applications
• Available in 8 orifice sizes
• Manual stem or mounting stud
• Bi-Flow operation-conversion either factory assembled or
with kit
• One coil fits all valve sizes
• Extended ends for easy installation (standard)
• Long-life molded coils
• PTFE O-ring for superior external sealing

Specifications
• Maximum fluid temperature: 250°F
• Maximum working pressure: 500 psig
• MOPD: 300 psig
• UL/CUL file number: MP604

The selection of a solenoid valve for a particular control application requires the following information:-

1. Fluid to be controlled
2. Capacity requirement
3. Maximum operating pressure differential
4. Electrical characteristics
5. Safe working pressure requirement

The capacities of solenoid valves for nominal liquid or suction gas refrigerant service are given in tons of refrigeration at some nominal pressure drop and standard conditions. Manufacturers' catalogs provide extended tables to cover nearly all operating conditions for common refrigerants. Follow the manufacturer's sizing recommendations. Do not select a valve based on line size. Pilot operated valves require a minimum pressure drop to operate, and selecting an oversized valve will result in the valve failing to open. Undersized valves result in excessive pressure drops.

The solenoid valve selected must have a MOPD rating equal to or in excess of the maximum possible differential against which the valve must open. The MOPD takes into consideration both the inlet and outlet valve pressures. If a valve has a 500psi inlet pressure and a 250psi outlet pressure, and a MOPD rating of 300psi will operate, since the differential is 250psi, less than 300 MOPD rating. If the pressure differential is larger than the MOPD rating, the valve will not open.

You should work with your wholesalers to select the correct solenoid valves for your applications.

Product line- thermal expansion valve- solenoid valves- coils- industrial solenoid valves - shut off valves - system protectors - liquid moisture indicators - filter driers - storage devices - suction accumulators - oil reserviors - receivers - oil management controls - regulators - temperature pressure controls