Catalog
Features
Reliability - Automatically sustains pressure directed by the pilot line on a 1 to 1 ratio (optional ratios shown below). The balanced internal valve functions to relieve excess pressure, or to maintain pressure against demand. Rubber seated valves provide zero leakage.
Installation Versatility - Operates in any position. May be supported by piping alone or by a mounting bracket. The IN and OUT ports are plainly marked on the body.
Ease of Maintenance - The valve may be serviced without disturbing line connections. All parts are accessible by removing top cover. No special tools are required.
Large Capacity - Designed with minimum valving to provide maximum flow (see graph).
Modern Construction - All materials are corrosion resistant. The sturdy die cast body contains wrench flats for ease of installation. Ports have dry seal pipe threads (suitable with standard pipe thread).
Positive Seals - Packing rings are located at all critical points in the assembly to eliminate internal and external leakage.
Application
The "S" Relay Valve is a pilot-operated, 3-way, pneumatic pressure control valve with open exhaust. The large capacity of this valve makes it an ideal volume booster. It receives pressure signals from a remote control valve and repeats this pressure with a greater rate of flow to the component being controlled. The valve serves to speed response time between sending and receiving stations in a pneumatic circuit which involves long piping runs or branch circuits. Where the controlled component is not in a readily accessible location, remote piloting provides a solution.
Reliability - Automatically sustains pressure directed by the pilot line on a 1 to 1 ratio (optional ratios shown below). The balanced internal valve functions to relieve excess pressure, or to maintain pressure against demand. Rubber seated valves provide zero leakage.
Installation Versatility - Operates in any position. May be supported by piping alone or by a mounting bracket. The IN and OUT ports are plainly marked on the body.
Ease of Maintenance - The valve may be serviced without disturbing line connections. All parts are accessible by removing top cover. No special tools are required.
Large Capacity - Designed with minimum valving to provide maximum flow (see graph).
Modern Construction - All materials are corrosion resistant. The sturdy die cast body contains wrench flats for ease of installation. Ports have dry seal pipe threads (suitable with standard pipe thread).
Positive Seals - Packing rings are located at all critical points in the assembly to eliminate internal and external leakage.
Application
The "S" Relay Valve is a pilot-operated, 3-way, pneumatic pressure control valve with open exhaust. The large capacity of this valve makes it an ideal volume booster. It receives pressure signals from a remote control valve and repeats this pressure with a greater rate of flow to the component being controlled. The valve serves to speed response time between sending and receiving stations in a pneumatic circuit which involves long piping runs or branch circuits. Where the controlled component is not in a readily accessible location, remote piloting provides a solution.
Unit of Measure
Specifications
Old Part # |
N/A P -027257-00000 P027257 P-027257 P27257 P-27257 |
Pipe Size |
N/A 1/2"-18 Adjustable |
Model Designation |
N/A 2-S |
Type |
N/A 3 way pilot operated pressure control |
Maximum Supply Pressure |
N/A 250 psi |
Maximum Pilot Pressure |
N/A 250 psi |
Ratio-Pilot To Delivery |
N/A 1:1 standard; others noted below. |
Temperature Range |
N/A -20 to 160 ºF |
Media |
N/A Air or inert gas |
Pilot Port Size |
N/A 1/4" NPT |
Body Port Size |
N/A 1/4" and 1" as noted below |
Hysteresis |
N/A Less than 5 psi. |
