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FLOW CONTROLS

PACKLESS VALVES

Standard Series

The function of a Packless Valve is to control flow or provide

isolation in liquid or gas applications. Packless Valves are also

suitable for use in vacuum applications.

Applications

Henry Technologies’ Packless Valves are used in a variety of air conditioning

and refrigeration applications for isolating, flow control, charging and purging

purposes. The standard series Packless Valves are suitable for use with

HCFC and HFC refrigerants, and their associated oils, as well as other

industrial fluids non-corrosive to brass, phosphor bronze, copper, stainless

steel, nylon and monel.

Main Features

Ÿ

Robust Design

Ÿ

Compact

Ÿ

Heat stabilized nylon seat ring for positive shut-off

Ÿ

Positive back-seating with valve in open position

Ÿ

Raised seat reduces debris induced sealing issues

Ÿ

Large diameter diaphragm for greater lift, better flow and longer life

Ÿ

Hermetic seal between bonnet, diaphragms and body

Ÿ

Suitable for vacuum applications

Ÿ

Diaphragms are changeable under line pressure

Ÿ

Bi-directional flow (see additional information)

Technical Specifications

Maximum working pressure = 500 PSI (34.5 Bar)

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

The standard series globe and angle Packless Valves are designed in

conformance with MIL-V-20064E and Military Standards MS-35880, MS-

35881 and MS-35883.

Materials of Construction - Standard series

The valve body and bonnet are made from brass. The lower stem is made

from brass for all models except the 629 series, where the material is monel.

The upper stem, stem cap and valve springs are made from stainless steel.

The seat ring is made from nylon for all models except the 629 series. These

models use a stainless steel seat ring. The diaphragm set is composed of

both phosphor bronze and stainless steel. The hand-wheel is made from die

cast zinc.

Part No

Fig

No

Conn Size (inch)

Dimensions (inch)

Weight (lbs)

A

B

C

D

E

Ø F

6231N 1

1/4 ODS x 1/4 SAE Flare

2.63

0.56

3.38

0.31

1.63

0.27

1.04

6232N 1

3/8 ODS x 3/8 SAE Flare

2.63

0.56

3.38

0.44

1.63

0.27

1.21

6233N 1

1/2 ODS x 1/2 SAE Flare

3.25

0.63

3.56

0.56

1.75

0.28

1.37

6234N 1

5/8 ODS x 5/8 SAE Flare

5.79

1.18

3.75

1.08

3.14

0.44

1.43

FIG 1

E

ØF

4

C

B

D

A

1

2

3

Œ

Inlet ODS Connection



Outlet SAE Flare Connection

Ž

Integral Seal Cap



Mounting Flange Detail

24