BENDIX - AIR VALVES

* The SV-1 synchronizing valve is a pilot operated, nongraduating pneumatic control valve. * It is used to control air from a remote supply which is different than control air supply. They have definite opening and closing pressures and can be used to delay or sequence the action on other pneumatic devices. NOTE: With common control and supply pressure, Inlet and Exhaust opening p.s.i. are shown on chart below.

SV-1 Synchronizing Valve

1/4 P.T.

1/8 P.T.

PART NUM BER 278825X 282472X 283700X

OPENING PSI

EXHAUST

42 PSI 21 PSI 62 PSI

28 PSI 11 PSI 50 PSI
* The TR-2 inversion valve is an air operated control valve. * It is normally open and is closed by using air pressure from another source. * The PR-2 is primarily used in emergency or parking brake systems and operate with air from a reservoir, isolated by a check valve, from the service brake system.

TR-2 Inversion Valve

Exhaust

MAINTENANCE KIT: #281138

1/4 P.T. Control (3) 1/4 P.T. Delivery (2) 1/4 P.T. Supply

PART NUM BER 277340X

* The TR-3 inversion valve is an air operated control valve. *It is normally open and is closed by using air pressure from another source. * It is used primarily in emergency or parking brake systems. * Operates with air from a reservoir isolated by a check valve from the air brake system. NOTE: With common control & supply pressure, inlet opens at A PSI descending pressure and exhaust opens at B PSI ascending pressure.

TR-3 Inversion Valve

1/8 P.T. Control

1/4 P.T. Delivery

PART NUM BER 101450X* 280758X 281318X 281459X 288586X

OPENING PSI DESCENDING

OPENING PSI ASCENDING
25 PSI 45 PSI 35 PSI 25 PSI 75 PSI
40 PSI 60 PSI 70 PSI 40 PSI 90 PSI

9/32 Mtg. Holes (2)

1/4 P.T. Supply
* NOTE: Part Number 101450X is for Special Duty Bus Application.

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