Johnson Controls V-6135-1 Switching Valve

The Johnson Controls V-6135-1 is a high-performance Three Way Air Switching Valve engineered for precise pneumatic control in commercial HVACR systems. Designed to function as a selector or diverter, this fast-acting two-position switching mechanism is the standard for day-night switchover, heating-cooling changeover, and enthalpy switchover applications. This specific model operates with a calibrated switchover pressure between 2 and 4 psig, ensuring reliable transitions in low-pressure pneumatic logic circuits. Its narrow deadband design is a critical technical feature, preventing the normally closed (upper) and normally open (lower) ports from being active simultaneously, which maintains system integrity during pilot signal fluctuations. The unit features universal barbed fittings compatible with 5/32" or 1/4" OD polytubing, allowing for seamless integration into existing pneumatic control systems. Built with a rugged polycarbonate body and an integral mounting bracket, the V-6135-1 provides a durable, field-proven solution for automated air line switching without the need for complex internal adjustments.

Key Benefits for Technicians

• Deadband Protection: Eliminates bypass air by ensuring one port is fully closed before the other opens during the 2-4 psig transition.
• Application Versatility: Ideal for implementing energy-saving enthalpy switchover and day-night pneumatic strategies.
• Simplified Installation: Universal barbed fittings and a built-in mounting bracket allow for surface mounting in any orientation.
• Fast-Acting Logic: Rapid response to control signals optimizes HVAC switching valve performance in time-sensitive sequences.
• Pneumatic Compatibility: Works natively with standard 5/32" and 1/4" OD tubing commonly found in legacy and modern pneumatic infrastructures.

Common Questions

What is the default port configuration for the V-6135-1?
In its de-energized state (pilot pressure below 2 psig), the lower port is normally open and the upper port is normally closed. When a control signal between 2 and 4 psig is applied, the flow shifts to the upper port.

Can the V-6135-1 be repaired in the field?
No. The V-6135 series consists of factory-calibrated pneumatic components. If the valve fails to switch within the 2 to 4 psig range or develops a leak, the entire unit should be replaced to ensure system accuracy.

Is the switchover pressure adjustable?
The switchover range is factory-set. For applications requiring different pressure thresholds, technicians should select the V-6135-2 (11-15 psig) or V-6135-3 (15-19 psig) models instead.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.