The Ruelco AR-1 relay is a multi-pressure control valve for production control and safety systems. It functions as an automatic reset, pilot operated, normally closed, block and bleed valve.

• 316 stainless steel construction (models to N.A.C.E. MR0175 available).
• Easy to close with pilot signal pressures as high as 100 PSI.
• Large C_v factor assures fast system response.
• Viton and nitrile seals are utilized for dependability.
• Design minimizes malfunctions due to supply system debris.
• Inconel X-750 20 PSI spring assures dependability in most corrosive environments (optional 30 PSI spring available).
• Optional stem protector available to prevent external debris accumulation on relay shaft.
• Available with black, red, or green knob (green standard)
• Normally open Model 12A2 also available.