3326 NORMALLY CLOSED ADJUSTABLE AIR PILOT RELAY VALVE 1/4” NPT

DESCRIPTION

The 3326 is a poppet-type, normally closed relay valve. The spring keeps this valve in a closed position. The supply line is blocked and the outgoing line is vented through the exhaust port. When air pressure enters the pilot port, the main spring is compressed. This will permit the supply air to flow through the out port and close the port to exhaust. Several spring ratings are available, up to 120 PSI. The valve lends itself extremely well for inter-locking and time-delay circuitry. Its all bronze and stainless steel construction will give many years of trouble-free service. This valve has a full flow, 1/4” capacity, without restrictions.

An optional inlet cap is available which is equipped with an adjustable flow control that permits the volume regulation of the supply air.

SPECIFICATIONS

Weight: 2.4 lbs. (1.09 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: -40ºC to +90ºC
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)
D – Light spring (25-60 PSI range)
DD – Extra light spring (10-20 PSI range)
E – Left hand model (as shown in drawing)
F – Right hand model

The Standard Model 3326 Relay Valve is supplied as follows:schema

1. Standard inlet cap
2. Heavy spring (40-120 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 3326 standard left hand model. Order No. 3326-ACE.

Description

ITEM

QTY

PART NO.

DESCRIPTION

1

1

3326-0001

End Cap

2

2

1010-0806

Round Head Screw

3

1

3326-0002

Pilot Port

4

4

1101-1012

Hex Head 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

Hex Head 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

1001-1010

Hex Head Screw

14

1

3326-0004

Spool

15

1

1022-0212

Jam Nut

16

1

1022-0112

Nut

17

1

3326-0005

Retainer

18 •

1

1201-0010

Spring (25-60 PSI)

18 •

1

1201-0050

Spring (10-20 PSI)

18

1

1201-0012

Spring (40-120 PSI)

19

1

1101-0012

“O” Ring

20

2

3326-0006

Washer

21

1

1105-2002

Diaphragm

22

1

1201-0016

Spring

23

1

3804-0003

Seat

24

1

3326-0007

Spool

25

1

3804-0004

Puppet

26 •

1

1101-0008

“O” Ring

27 •

1

3325-0011

Needle

28 •

1

3325-0012

Inlet Cap

29 •

1

1022-0262

Jam Nut

• Optional, depending on model configuration.

ALTERNATIVE INLET CAP WITH FLOW CONTROL REPLACES ITEM 9.
ALL DIMENSIONS IN INCHES (mm.)

A Repair Kit is available, consisting of all seals and gaskets. Order No. 3326-RK.

None.