All our valves feature EXHAUST ONLY SPEED CONTROL to ensure smooth and repeatable retraction cycles. The speeds of all functions are adjusted with built in needle valves and are totally independent. An added feature is that whatever speed you select it will remain constant from the minimum to the maximum operating pressure of your particular system.

U.P.1 ADJUSTABLE SPEED CONTROL VALVE

This valve will work with any make and size of retract system that uses air for both the up and down movements. Use this also for operating Air Rams.

Specification
Dual speed control 3 -10 seconds recommended
Single air inlet 30 – 120 pounds
Four outlets for legs
Standard servo actuation 0.3 inches travel
Size 1.2 x .75 x .375 inches
Weight .75 oz.

U.P. 2 RETRACT AND DOOR CONTROL VALVE
( For P51 Mustang Type)

Doors shut gear up and down.

This valve features automatic door control and exhaust only speed control, not only for the struts but also for the opening and closing of the doors. This valve does NOT require a special servo, any standard servo can be used. This is because the automatic sequencing is built into the valve.

Specification
Single speed control for leg 3 -10 seconds recommended
Dual speed control for doors 0.5 – 3 seconds recommended
Single air inlet 30 – 200 pounds
Four outlets for legs
Four outlets for door cylinders
Standard servo actuation 0.3 inches travel. Slow servo not required
Size 1.94 x 1.18 x .62 inches
Weight 2.3 oz.

Sequence of operation
Strut in the up position: Strut in the down position:
Down selected: Up selected:
Servo moves spool Servo moves spool
Door opens Door opens
Retract lowers Leg raises
Leg locked down leg locked up
Door closes Door Closes

U.P.3 RETRACT AND DOOR CONTROL VALVE
(For P47 type)

This valve is similar to the U.P.2; the difference being that the doors stay open when the struts are in the down position.

Specification
Dual speed control for legs 3 -10 seconds recommended
Dual speed control for doors 0.5 – 3 seconds recommended
Single air inlet 30 – 200 pound
Four outlets for legs
Four outlets for door cylinders
Standard servo actuation 0.3 inches travel. Slow servo not required
Size 1.94 x 1.25 x .62 inches
Weight 2.4 oz.

Sequence of operation
Strut in the up position: Strut in the down position:
Down selected: Up selected:
Servo moves spool Servo moves spool
Door opens Leg raises
Retract lowers Leg locked up
Leg locked down Door Closes
Door stays open

U.P.5 SPRING AIR CONTROL VALVE

For use with spring air systems where air is used to raise the struts and a spring is used to lower. This valve will control the direction of movement and provide truly independent and adjustable speed control of the up and down speeds.

Specification
Dual speed control for legs 3 – 10 seconds recommended
Single air inlet 30 – 200 pounds
Two outlets for legs
Standard size servo actuation 8mm travel
Size 1.4 x .75 x .375 inches
Weight 22 grams

U.P.6 VARIABLE PRESSURE BRAKE CONTROL VALVE

This valve has been designed to control the air pressure to your brake system - the pressure being proportional to servo travel. Consistent brake control, light pressure required-Non stick piston design.

Specification
Input pressure Max 200 psi
Output pressure 0 – 100 psi proportional to servo travel
Main housing size 1.50 x .85 x .375 inches
Weight 23 grams
Servo travel .53 inches (13mm)
Servo force for maximum pressure 4.5 pounds (3 kg servo with output hole 8mm from centre)

All Available from Motors & Rotors 01923 465712 email motrot@aol.com

UP Air Rams

5/16” Dia (8mm) and 7/16” (14mm) dia Air Rams from ¾” 19mm to 4” 100mm travel.

Air Tanks, Air Tubing, Fill Valves, T pieces to suit.

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