17369 Watson-Chalin Ratio Valve 17369 Watson-Chalin Ratio Valve Used primarily in vehicular air brake systems, this valve is a three-way, compensating, pilot pressure-operated relay valve. This valve delivers an output pressure that is proportional to the amount of control pressure applied. There is an adjustment which allows the output/control pressure ratio to be changed. It is also used in some lift axle applications. Specs: Adjustable (from 20%< to 30%> control psi.) PORT SIZE: 1/4-18 NPTF MAXIMUM OPERATING PRESSURE: 150 PSI OPERATING TEMPERTURE: -20°F (-28,9°C) to 200°F (93,3°C) FLOW RATING: 50 SCFM@ 100 PSI (1, 0 m3/min@ 690 kPa) CRACK PRESSURE: 1.5 PSI (10,3 kPa) w/100 PSI (690 kPa) Supply OUTPUT ADJUSTABILITY: 20% less than control pressure to 30% greater than control pressure MATERIALS: Body Castings Die Cast Aluminum Diaphragms: Fabric-Reinforced Buna N Poppet: Chrome-Plated Brass w/ Buna N Insert Bumper & 0-Rings: Buna N Drawing and Spec Sheet: ACK124-with17369 Share this… Email Facebook Pinterest Twitter Linkedin Print SKU: M-R986038 Categories: Air Controls, Air Supply, Air Valves & Parts, Control Valves, Heavy Truck, Lift Axle, Ratio Valves
