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Brass thermostatic expansion valve with 60 inch capillary and bulb strap

Parker

Parker Thermostatic Expansion Valve 5-8 Tons R-410A 60 in capillary

SKU CH-HDW4-PDVST

Regulates refrigerant flow in 5-8 ton R-410A systems with a 60-inch capillary and adjustable 3-18 degree superheat range

  • TypeLearning Thermostats
  • Adjustable superheat control via 3-18° static range
  • R-410A compatible for 5-8 ton cooling systems
  • 60-inch capillary enables flexible bulb positioning
  • Balanced port design maintains stable operation
  • Straight-through solder connections simplify installation

Parker Thermostatic Expansion Valve 5-8 Tons R-410A

This adjustable thermostatic expansion valve controls refrigerant flow in R-410A systems with a nominal capacity of 5 to 8 tons. It features a straight-through solder connection with a 5/8 inch inlet and a 7/8 inch outlet. The unit includes a 60 inch capillary tube and a bulb strap with mounting hardware for installation.

Upgrade from fixed orifice or non-adjustable valves

This valve replaces fixed metering devices or non-adjustable expansion valves that cannot adapt to changing load conditions. The adjustable static range of 3 to 18 degrees allows precise superheat tuning for specific system requirements. The jump is worth it when the application demands accurate refrigerant control across variable operating conditions in R-410A equipment.

Sustained load behavior with balanced port design

The balanced port construction (ECE-D-ZX200, 750-70) maintains consistent superheat control during extended run cycles and fluctuating head pressures. The external equalizer connection ensures accurate sensing of evaporator outlet pressure under sustained load. The valve is not rated for use with R-22 refrigerant.

Highlights

  • Adjustable superheat control via 3-18° static range
  • R-410A compatible for 5-8 ton cooling systems
  • 60-inch capillary enables flexible bulb positioning
  • Balanced port design maintains stable operation
  • Straight-through solder connections simplify installation

Specifications

BrandPARKER
TypeLearning Thermostats

Questions about this item

What pipe sizes does the 5/8 in inlet and 7/8 in outlet solder connection fit?

The valve has a 5/8 inch inlet and a 7/8 inch outlet for straight-through solder connections.

How do I set the superheat on this adjustable valve and what mistake should I avoid?

Adjust the static range between 3 and 18 degrees using the stem; the common error is turning the adjustment before the system reaches stable operating conditions.

When should the 60 in capillary bulb and its strap be inspected or replaced?

Check the bulb mounting and strap during each seasonal service; replace the valve if the charge migrates or the diaphragm fails to modulate between 0 and 50 psi.

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