3324 NORMALLY CLOSED ADJUSTABLE RELAY VALVE 1/4” NPT

DESCRIPTION

The 3324 is a normally closed, adjustable poppet-type valve which is controlled by a piston and spring arrangement. The spring keeps this valve in a closed position and pilot pressure will open the valve, allowing the air flow from the source of supply to the device actuated. The maximum pilot pressure is 700 PSI. The maximum control pressure (pneumatic) is 200 PSI. Many of these valves are used for clutch and throttle inter-locks in marine propulsion applications, where the gear box has to accumulate hydraulic pressure to lock up the forward or reverse clutch. After clutch lock up, the hydraulic pressure will open this valve, allowing the throttle signal to go through to the engine speed setting device.

This valve is also available with dual piloting on special request.

SPECIFICATIONS

Weight: 3.5 lbs. (1.6 kg)
Materials: Die-cast silicon bronze and stainless steel hardware
Maximum Supply Pressure: 200 PSI (13.79 BAR)
Maximum Pilot Pressure: 700 PSI (48 BAR)
Operating Temperature Range: -40∞C to +90∞C
Pipe Port Size: 1/4” NPT

ORDERING INFORMATION

Model Designation Order Codes:

A – Standard inlet cap
B – With flow control inlet cap
C – Heavy spring (40-120 PSI range)
CC – Extra heavy spring (100-160 PSI range)
D – Light spring (25-60 PSI range)
DD – Extra light spring (10-20 PSI range)
E – Left hand model
F – Right hand model

The Standard Model 3324 Relay Valve is supplied as follows:schema

1. Standard inlet cap
2. Extra heavy spring (100-160 PSI range)
3. Left or right hand model

To order, state Model Number, followed by desired Model Designation Order Codes listed above.
Example: To order a 3324 standard left hand model. Order No. 3324-ACCE.

Description

ITEM QTY PART NO. DESCRIPTION
1 1 3326-0001 End Cap
2 2 1010-0806 Round Head Phillips Screw
3 1 3326-0002 Pilot Port
4 4 1001-1020 Hex Head Cap Screw
5 1 3325-0002 Vent Port (Left Hand)
5 1 3325-0013 Vent Port (Right Hand)
6 1 3325-0008 Exhaust Port
7 1 3325-0009 Outlet Port
8 2 1001-1044 Cap Screw
9 1 3325-0010 Inlet Cap
10 1 1201-0009 Spring
11 1 1101-0016 “O” Ring
12 2 1102-0005 “U” Cup
13 1 3326-0008 Piston
14 1 3326-0010 Spool
15 1 1022-0212 Jam Nut
16 1 1022-0112 Nut
17 1 3326-0005 Retainer
18 • 1 1201-0050 Spring (10-20 PSI)
18 • 1 1201-0010 Spring (25-60 PSI)
18 • 1 1201-0012 Spring (40-120 PSI)
18 1 1201-0030 Spring (100-160 PSI)
19 1 1102-1001 “U” Cup
20 2 1101-0139 “O” Ring
21 1 1102-0021 “U” Cup
22 1 1201-0016 Spring
23 1 3804-0003 Seat
24 1 3326-0007 Spool
25 1 3804-0004 Poppet
26 1 3326-0009 Spacer
27 1 1022-0261 Jam Nut
28 • 1 1101-0008 “O” Ring
29 • 1 3325-0011 Needle
30 • 1 1022-0262 Jam Nut
31 • 1 3325-0012 Inlet Cap

• Optional, depending on model configuration.

ALTERNATIVE INLET CAP WITH FLOW CONTROL
ALL DIMENSION IN INCHES (mm.)

A Repair Kit is available consisting of all seals. Order No. 3324-RK.

None.