The Sporlan SQ series are replaceable cartridge style valves designed for small refrigeration systems, such as refrigerated cases, coolers, and freezers. The externally equalized versions of these valves are ideal for air conditioning and heat pump systems.

SQ valves are supplied as three individual component parts: the thermostatic element, the valve body, and the replaceable cartridge or orifice. The interchangeable nature of the SQ family make it ideal for reducing inventory, while increasing valve options – so the right valve is always on hand.

SQ brass body type valves feature Sporlan’s traditional knife edge, metal-to-metal thermostatic element to valve body construction, which ensures a leak-proof joint.

Sporlan’s selective thermostatic charges are specifically designed for low temperature, medium temperature, and air conditioning applications. The elements are manufactured with a large flat diaphragm to reduce diaphragm stresses and provide precise control. The installer is able to select the best possible thermostatic charge for the application because the SQ valve bodies and thermostatic elements are supplied as independent components.

Refrigerant flow through the valve port opposes the pin movement in all Type SQ valves. This provides improved stability at light loads, when the pin modulates to a position close to the port. The liquid flow enters near the top of the valve body, which has a warming effect on the thermostatic element and minimizes the potential for charge migration.

The Type SQ valves are available with sweat connections and all feature adjustable superheat. The SQ valve has a removable inlet strainer.

Markets:
• Air Conditioning
• Refrigeration – Food Retail
• Transportation
• Industrial – Food Storage units

Features/Benefits:
• Replaceable cartridge design.
• Thermostatic charges available to match system conditions
• Available with external equalizer and internal equalizer
• Design working pressure of 450 psi (31 bar) or 700 psi ( bar).

Applications:
• Systems with widely varying operating conditions
• Capacity ranges from 1/8 to 5 ton R-22
• Supermarket cases and rack systems, Food and Beverage units
• Air Conditioning – Residential, Commercial, Chillers
• Transportation – Units on Truck/Trailer, Bus and Vans

Détendeur thermostatique – Sporlan – Type SQ