Sporlan Heat Reclaim Valves are tight synthetic seating three way valves designed specifically to divert hot gas from the normal to auxiliary condenser.
 
   
 
 

"B" TYPE
NORMAL (OUTDOOR) CONDENSER - De-energised

    With the pilot valve is de-energised, high side pressure is prevented from entering the cavity above the piston-seat assembly. At the same time the upper pilot port is opened to suction pressure. The resulting pressure differential across the piston moves the piston-seat assembly to close the reclaim (upper) main port.

When the upper pilot port is open, the cavity above the piston is open to suction. Pump out of the reclaim condenser is controlled by the bleed rate through the piston. After the reclaim condenser has been pumped out, and the valve continues to operate in the normal condenser mode, all flow ceases, thus eliminating high to low side bleed and the resulting capacity loss.
 
 
 

"C"TYPE
NORMAL (OUTDOOR) CONDENSER - De-energised
    With the pilot valve de-energised, high side pressure is prevented from entering cavity above the piston-seat assembly. At the same time the upper pilot port is opened to suction pressure.

The resulting pressure differential across the piston moves the piston-seat assembly to close the reclaim (upper) main port. The non bleed piston prevents high to low side bleed with the system operating in the normal condenser mode.
 
 
 

B" AND "C" TYPE
RECLAIM (REHEAT) CONDENSER - Energised
    When the pilot valve is energised, high side pressure is permitted to flow thru the lower pilot port. At the same time the upper pilot port is closed to suction. High side pressure build-up on top of the piston moves the piston-seat assembly to close the normal condenser port and open the reclaim (upper) main port. With the upper pilot port closed there is no high to low side bleed loss with the system operating in the reclaim mode.