Honeywell D146M1040 1-1/4" Differential Pressure Regulator W/Indicator

Features:

The Differential Pressure Regulator Eliminates Excessive Pump Head Pressure, When Most Radiator Valves are Closed Due to Reduced Demand, by Controlling Flow Through a Bypass Line When the Difference Between Supply/Return Exceeds the Set Point
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 Set Point
Provides Silent, Trouble-Free Service
Easy Installation
Requires No Electrical Hookup
Easy Adjustment of Pressure by Turning Regulating Cap
Brass Valve Body with Thermoplastic and Stainless Steel Parts

Specifications:

Manufacturer: Honeywell
Manufacturer Part Number: D146M1040
Product Type: Angled Differential Pressure Regulator Valve
Nominal Size: 1 1/4"
End Connection: Female Threaded x Female Threaded
Body Material: Brass
Diaphragm Material: EPDM
Downstream Pressure Range: 0 to 17 PSI
Temperature Rating: 230 Degrees F
Pressure Rating: 85 PSI
Flow Rate: 50 GPM
Capacity: 395000 BTU/H
Dimensions: 6.9" x 4.7" x 2.85”
Weight: 2.18 lb.