Hansen HGV1, HGV1H, HGV2, H7771H, H965 Specifications, Applications, Service Instructions & Parts

Bulletin G409d

JAN 2013

Specifications, Applications,

Service Instructions & Parts

GAUGE, PURGE, AND

TRANSDUCER VALVES

1/4" – 1/2" (7mm – 13mm)
MPT or FPT Globe & Angle

for Refrigerants

HGV1: Long Neck

H9490: Transducer Valve

INTRODUCTION

These specially designed refrigerant gauge, purge, and
transducer valves feature tough, forged steel bodies,
compact size, and polished stainless steel stems. The
patented O-ring plus packing dual seal design and
polished stainless steel stem virtually eliminates stem
seal leakage. Safety stems are designed to be non­removable from the body to avoid dangerous stem
"blow out".

APPLICATION

These Hansen-made valves are suitable for ammonia,
R22, R134a, CO2 and other approved refrigerants.
They are available with seal caps, bar handles or bare
stems. They are often used to isolate pressure gauges
on regulators and safety relief valves. These valves
may also be used for pumpout and purging. They are
not recommended for oil drain because the port is too
small for viscous oil. The Long Neck® valves provide
additional length for insulation and pressure gauge
turning clearance. The transducer valve accommodates
calibration or device replacement without system
pumpdown.

MATERIAL SPECIFICATIONS

Body: Forged steel, ASTM A105, zinc plated

(H9490 not plated)

Stem: Stainless steel, polished, ¼" square flats

Stem Packing: Graphite composite plus

neoprene O-ring

Packing Nut: Steel, zinc plated

Seal Cap: Glass filled polymer

Seal Cap O-ring: Neoprene

Bar Handle: Steel, zinc plated

Safe Working Pressure: 400 psig (28 bar) SWP

600 psig (41 bar) available upon request

Operating Temperature: -60°F to 240°F

(-50°C to +115°C)

KEY FEATURES

OPTIONAL BAR HANDLE

SEAL CAP

NON-REMOVABLE
SAFETY STEM

FORGED
STEEL BODY

POLISHED STAINLESS
STEEL STEM

O-RING PLUS PACKING
STEM SEAL

ADDITIONAL FEATURES

Globe and angle valve available

Heavy duty forged steel body

Long Neck gauge valve available

Unique Transducer / Gauge valve

Interchangeable seal caps and bar handles

LONG NECK
AVAILABLE

INSTALLATION DIMENSIONS (inches)

MPT X FPT, ANGLEMPT x FPT, LONG NECK

FPT X FPT, ANGLEFPT X FPT, GLOBE

SIZE
(mm)

1/4"

3/8"

1/2"

* THE B DIMENSI ON FOR HGV1, HGV1H, & HGV2 IS 3 .25" (83MM)

A A' B C E F G H H' J

2.09

2.57

1.11*

1.2 6

1.0 0

0.59

(7)

(10)

(13)

(53)

2.94
(75)

2.94
(75)

(65)

3.57
(91)

3.57
(91)

(28)

1.4 4
(37)

1.4 4
(37)

(32)

1.8 8
(48)

1.8 8
(48)

(25)

1.6 3
(41)

1.6 3
(41)

2.28

(15)

(58)

0.72

3.22

(18)

(82)

0.72
– – – –

(18)

2.22
(56)

3.07
(78)

TRANSDUCER VALVE

2.71
(69)

3.70
(94)

0.47
(12)

0.59
(15)

ORDERING INFORMATION

DESCRIPTION SE AL

1/4" MPT x FPT, Angle, Long Neck† HGV1* HGV1H HGV2
1/4" MPT x FPT, Angle H7771* H7771H H965
1/4" FPT x FPT, Angle H7772 H7772H H967
1/4" FPT x FPT, Globe H957C H957H H957
1/4" MPT x FPT x FPT, Transducer Valve H9490 – –
3/8" MPT x FPT, Angle H7773 H7773H –
3/8" FPT x FPT, Angle H7774 H7774H –
3/8" FPT x FPT, Globe H958C H958H –
1/2" MPT x 3/8" FPT, Angle H7777 – –
1/2" MPT x 1/4" FPT Angle H7778 – –

† LONG NECK VALVES PROVIDE ADDITIONAL LENGTH FOR INSULATION AND

PRESSURE GAUGE TURNING CLEARANCE.

* HGV1 AND H7771, AVAIL ABLE A S WELDE D INLE T VERS IONS, HGV1W AND

H7771W PAINTED BODY.

CAP

TO ORDER: Specify Catalog Number.

BAR

HANDLE

BARE
STEM

SERVICE AND MAINTENANCE

Hansen gauge valves require practically no service
or maintenance due to the combination of polished
stainless steel stem and reliable O-ring stem seal plus
graphite composite packing. However, if tightening
is ever needed, use a 3/8" open end wrench or an 8"
adjustable wrench. Extrusion of some black graphite
packing material along the stem is normal.

If the O-ring or the adjustable packing ever needs
replacement as evidenced by refrigerant or oil leakage at
the stem, isolate valve from the system and evacuate to
zero pressure in accordance with appropriate practices.

Seal caps [1/4" (P/N 50–1071), 3/8"–1/2" (P/N 50–1036)]
or bar handles [1/4" (P/N 50–1069), 3/8" (P/N 50–1075)]
can be easily retro-fitted to valves in the field. All
bodies have seal cap threads; simply screw seal cap
with O-ring onto these threads. Bar handle kit comes
with pin partially installed in handle Place handle on
stem and turn clockwise to close valve. Begin to push
pin through handle and valve stem using pliers, then
tap with hammer to finish.

1/4" Transducer Valve

The H9490 Transducer Valve can be installed wherever

pressure monitoring is desired. Turn stem all the way

in (clockwise) and seat to isolate pressure from both
gauge and transducer por ts. Turn stem all the way out
(counter-clockwise) and seat to isolate pressure from

the gauge port. With stem in middle position, both

ports are active.

G409d
JAN 2013

CAUTION

Hansen valves are for refrigeration systems only. Read
these instructions completely before selecting, using,
or servicing these valves. Only knowledgeable, trained
refrigeration technicians should install, operate, or
service these valves. Stated temperature and pressure
limits should not be exceeded. Bonnets should not
be removed from valves unless the system has been
evacuated to zero pressure. See also Safety Precautions
in the current List Price Schedule and the Safety
Precautions Sheet supplied with the product.

WARRANTY

Hansen valves are guaranteed against defective materials
or workmanship for one year F.O.B. our factory. No
consequential damages or field labor is included.

Hansen Technologies Corporation
400 Quadrangle Drive, Suite F
Bolingbrook, Illinois 60440 USA
Tel: [phone] Fax: [phone] Toll: 866.4HANSEN
Email: [e-mail] Web: www.hantech.com

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