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FLOW CONTROLS

EXPANSION VALVES

Part No

NPT Conn

(inch)

Dimensions (inch)

Orifice Diameter

(inch)

Weight (lbs.)

A

B

C

320F-E

1/2

3.63

0.94

6.17

0.25

2.5

330F-E

3/4

3.63

0.94

6.17

0.38

2.5

340F-E

1

4.13

1.10

6.30

0.50

3.5

The function of an Expansion Valve is to meter liquid refrigerant

and induce a large pressure drop causing the refrigerant to cool

rapidly.

Applications

Expansion Valves are used immediately prior to the evaporator in a

refrigeration or air conditioning system. These valves are suitable for use

with ammonia, HCFC and HFC refrigerants and their associated oils, as well

as other industrial fluids non-corrosive to steel and ductile iron.

Main Features

Ÿ

Backseating stem to allow for replacing stem packing while under

pressure

Ÿ

Four bolt bonnet flange design

Ÿ

Internal replacement parts available

Ÿ

NPT connections

Technical Specifications

Maximum working pressure = 400 PSI (27.6 Bar)

Allowable operating temperature = -20°F to +275°F (-29°C to +135°C)

Materials of Construction

The body and bonnet are made from ductile iron. The stem is made from

stainless steel. The seat insert is made from cold rolled steel. The bonnet

gasket is made from Garlock 2930.

*Cv Value

Stem Turns

From Closed

1/4 1/2 3/4 1

2

3 Full

Open

Valve P/N

320F-E 0.09 0.22 0.40 0.56 1.00 1.28 1.58

330F-E 0.20 0.42 0.71 0.95 1.50 2.09 2.60

340F-E 0.34 0.81 1.21 1.62 2.89 3.80 4.51

*Water GPM at 1 psi pressure drop at +86°F

A

Orifice

Dia.

C

B

Open

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