Control Fluid Temperature in Hydrostatic Drive Circuits, Hydraulic Thermal Bypass Valves, 250 psi - TH Series TH-1000-12FO-76

Parker's thermal bypass valves modulate fluid temperature by shifting return line flow through the cooler, or bypassing it directly to the reservoir.

TH Series Thermal Bypass Valves are used to modulate fluid temperature by shifting return line flow through the cooler, or bypassing it directly to the reservoir. Additionally, an integral pressure relief function automatically releases excess pressure to the reservoir if the cooler becomes restricted, and the inlet pressure becomes excessive. Relief crack pressure settings range from 5 to 85 psi in 5 psi increments. The TH Series is available in 1"" size and rated for pressures up to 250 psi with a max flow rate 60 gpm. There are five standard shift temperatures.

Technical Characteristics:
• Valve Size: 1""
• Material: Aluminum
• Weight: 2.0 lbs
• Port Ends: Female SAE O-Ring Boss
• Standard Crack Pressure Setting Options: 5 to 85 psi (in 5 psi increments)
• Standard Shift Temperature Options (°F): 100°, 120°, 140°, 160°, 180°
• Full Shift Temperature (cooler port open): Shift temperature plus 25°F
• Proof Pressure: 300 psi (21 bar)
• Minimum Burst Pressure (up to full shift temperature): 325 psi (22 bar)
• Minimum Burst Pressure (above full shift temperature): 600 psi (41 bar)
• Operating Temperature: Min= -30°F, Max= Shift temperature plus 75°F
• Max Flow Rate: 60 gpm (227 l/m)

Markets:
• Construction
• Agriculture
• On and Off Road Equipment

Features/Benefits:
• Ideal for hydrostatic drive circuits requiring fast warm up, controlled fluid temperatures, and low return line back pressure.
• Lightweight, corrosion resistant aluminum housing
• Integral relief valve dumps excess inlet pressure to the reservoir
• Five standard shift temperature options
• Wide range of crack pressure options from 5 to 85 psi

Applications:
• Hydrostatic drive circuits

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