Honeywell D146M1040 Differential Pressure Regulator

Features

• Install between supply and return sides of a hydronic system to stabilize pressure differential and reduce the effects of demand changes.
• Control maintains a constant differential between the two sides by opening a bypass whenever the difference between supply and return reaches the setpoint.
• Provides silent, trouble-free service.
• Easy installation; requires no electrical hookup.
• Easy adjustment of pressure by turning regulating cap.
• Built-in differential pressure indicator.
• Brass valve body with thermoplastic and stainless steel parts.
• Diaphragm of EPDM.

Product Specifications

• Dimensions (in.): 8 1/2 in. high x 4 1/4 in. wide
• Dimensions (mm): 213 mm high x 109 mm wide
• Includes: Built-in differential pressure indicator
• Operating Temperature Range (F): 230 F Maximum
• Operating Temperature Range (C): 110 C Maximum
• Connection Type: Angle type, female threaded NPT
• Pipe Size (inch): 1 1/4 in.
• Pipe Size (DN): DN32
• Capacity: 395,000 Btu/hr; 50 gpm
• Valve Type: Pressure Regulating Valve
• Materials (Body): Brass (body), Stainless steel and engineered thermoplastics. EPDM diaphragm.
• Outlet Pressure Adjustment Range (psi): 0-17 psi
• Max. Inlet Pressure Rating (psi): 85 Psi