SC-1222 R22 and R134a Refrigerant Charging Control Valve Twin Set (1/4" Male - 1/4" Female)

Designed to prevent refrigerant loss and cold burns on the technician’s hand when disconnecting hoses from the Schrader valve during evacuation, refrigerant charging or recovery on air conditioning and refrigeration systems, the SC-1222 Refrigerant Charging Control Valve is offered to professionals in the field as a twin set. With 1/4" female inlet and 1/4" male outlet connections, these valves are used safely on systems with standard pressures such as R22 and R134a.

Full Control at Low and High Pressure with a Twin Set

Buying this product as a twin set lets you control refrigerant on both the low pressure (blue) and high pressure (red) hose ends of your manifold at the same time. Instead of disconnecting the hose while the system is under pressure, you can safely close the system’s Schrader valve by turning the blue aluminum knob on the valve to "OFF". This way you can disconnect the fittings at zero pressure and with zero refrigerant loss (Refrigerant Retention), providing professional service without harming the environment.

Key Technical Features and Equipment

Designed to withstand heavy site conditions, the technical details of this brass valve set are as follows:

• Model: SC-1222 (Refrigerant Retention Control Valve)
• Package Contents: 2 x 1/4" - 1/4" Refrigerant Control Valve
• Connection Sizes: 1/4" SAE Female (Schrader valve side) - 1/4" SAE Male (manifold hose side)
• Material: Heavy-duty brass body resistant to corrosion and high pressure, leak-tight PTFE seals.
• Control Mechanism: Ergonomic aluminum ON-OFF knob with direction arrows.
• Compatible Refrigerants: All systems with a 1/4" service Schrader valve, notably R22, R134a, R404A and R407C.

Practical Usage Note for Technicians in the Field

Technician’s Note: Fit these valves to the ends of your hoses before connecting your manifold to a system. Keep the valves in the "ON" position while working on the system (charging or evacuating). When you are finished, do not try to remove the hose directly; first turn the blue knob to "OFF" so that the air conditioner’s own Schrader valve closes. Once the valve core has closed, turn the knurled female fitting to disconnect from the unit. This saves your fingers from that painful "hiss" burn and leaves the charge in the unit intact.