Fairchild
M25
FAIRCHILD - Relays
Model 25 Reversing Relay is designed for applications requiring an output that equals a manually preset spring load minus a variable signal pressure. This high quality unit combines excellent sensitivity with unusually high flow capacity.
Features
• The Model 25 is ideally suited for a variety of precision control applications, including converting direct acting valves to reverse action, controlling opposite acting valves from a single transmitter, and cushioning cylinder loads
• The basic mathematical expression for the Model 25 is PO = K - PS where PO is output pressure, PS is signal pressure and K is the spring constant
• Control sensitivity of 1/8" water column allows for use in high precision applications
• Balanced supply valve minimizes the effects of supply pressure variation
• Aspirator tube design compensates for output pressure droop under flow conditions
• Separate control chamber isolates the diaphragm from the main flow to eliminate hunting and buzzing
• Unit construction allows servicing without removal from air line
• The basic mathematical expression for the Model 25 is PO = K - PS where PO is output pressure, PS is signal pressure and K is the spring constant
• Control sensitivity of 1/8" water column allows for use in high precision applications
• Balanced supply valve minimizes the effects of supply pressure variation
• Aspirator tube design compensates for output pressure droop under flow conditions
• Separate control chamber isolates the diaphragm from the main flow to eliminate hunting and buzzing
• Unit construction allows servicing without removal from air line
Features
Features
• The Model 25 is ideally suited for a variety of precision control applications, including converting direct acting valves to reverse action, controlling opposite acting valves from a single transmitter, and cushioning cylinder loads
• The basic mathematical expression for the Model 25 is PO = K - PS where PO is output pressure, PS is signal pressure and K is the spring constant
• Control sensitivity of 1/8" water column allows for use in high precision applications
• Balanced supply valve minimizes the effects of supply pressure variation
• Aspirator tube design compensates for output pressure droop under flow conditions
• Separate control chamber isolates the diaphragm from the main flow to eliminate hunting and buzzing
• Unit construction allows servicing without removal from air line
• The basic mathematical expression for the Model 25 is PO = K - PS where PO is output pressure, PS is signal pressure and K is the spring constant
• Control sensitivity of 1/8" water column allows for use in high precision applications
• Balanced supply valve minimizes the effects of supply pressure variation
• Aspirator tube design compensates for output pressure droop under flow conditions
• Separate control chamber isolates the diaphragm from the main flow to eliminate hunting and buzzing
• Unit construction allows servicing without removal from air line