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Threaded Shut-off Valves
EXTENDED NECK VALVE
Gauge, Purge, and Needle Valves
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Shut-Off Valves
Hansen's state-of-the-art Shut-Off Valves are designed specifically for use in industrial ammonia and large commercial halocarbon refrigeration systems. These rugged valves are a strong, reliable component for modern industrial refrigeration applications and are suitable for liquid, suction, hot gas, discharge, recirculating liquid or oil lines. Shut-Off Valves come in threaded, socket weld, or butt weld connection styles. Sizes range from 3/8" to 16" (20 mm to 400 mm).
Shut-Off Valve Features:
- Leak-free, stem sealing with dual-seal
- Stainless steel stems
- Reliable Teflon seat discs (no lead)
- Ball bearing seat swivel
- Dirt-resistant taper (conical) seat
- Back-seating design
- Handwheels and seal caps are interchangeable
Applications:
Hansen's refrigeration Shut-Off Valves are ideal for shut-off of liquid, suction, discharge, recirculating liquid, hot gas, and oil lines in ammonia refrigeration systems. When used with seal caps, these valves are also suitable for R22, R134a, and other Hansen-approved refrigerants.
Gauge, Purge, and Needle Valves
Hansen's specially designed Gauge, Purge, and Needle Valves feature tough, forged steel bodies, compact size, and polished stainless steel stems. Their patented o-ring plus packing dual-seal design and polished stainless steel stems provides leak-free packing. The safety stem design prevents removal of stem from body or stem "blowout". A Long Neck ® version is available that provides extra clearance for gauge-turning rotation. They are available in 1/4 " or 3/8" MPT or FPT globe or angle sizes and styles.
Applications:
Hansen's Gauge, Purge, and Needle Valves are available with seal caps, bar handles, or bare stems. Often used to isolate pressure gauges on regulators, these valves can also be used to pump out, purge, and meter refrigerant liquid or gas.
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THREADED SHUT-OFF VALVES MATERIAL SPECIFICATIONS
Body:
ductile iron, A-536
Bonnet:
steel, zinc chromate plated
Stem:
stainless steel
Disc holder:
steel, zinc chromate plated
Seat disc:
PTFE Teflon, retained
Ball bearings:
stainless steel
Ball retainer ring:
stainless steel
Packing nut:
steel, zinc chromate plated
Stem packing:
graphite composite plus neoprene O-ring
Handwheel:
zamak alloy, zinc chromate plated
Seal cap:
glass filled polymer, safety vented
Seal cap O-ring:
neoprene
Bonnet gasket:
Neoprene O-ring plus steel knife edge
Bonnet thread cap:
polyethylene (remove above 200F)
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EXTENDED NECK, BOLTED BONNET, SHUT-OFF & HAND EXPANSION VALVES MATERIAL SPECIFICATION
Body:
Forged Steel, ASTM A105
Stem:
Stainless Steel
Disc Holder:
Steel
Seat Disc:
PTFE Teflon, Retained
Ball Bearings:
Stainless Steel
Packing Nut:
Corrosion Resistant Coated Steel
Stem Packing:
Graphite Composite Plus Neoprene O-ring
Handwheel:
Zinc-plated Alloy
Bonnet:
Ductile Iron ASTM A536
Seal Cap:
Glass-filled Polymer, Safety Vented
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SOCKET WELD SHUT-OFF VALVES MATERIAL SPECIFICATIONS
Body:
½" and ¾", ASTM A108 (connections ASTM A513)
1" through 2½", cast steel, ASTM A352, grade LCB
Stem:
stainless steel
Disc Holder:
steel
Seat Disc:
PTFE Teflon, retained
Ball Bearings:
Stainless steel
Packing Nut:
½" through 1¼", corrosion resistant coated steel
1½" through 2½", electroless nickel plated steel
Stem Packing:
graphite composite plus neoprene o-ring
Handwheel:
½" through 1¼", zinc-plated Zamak alloy
1½" through 2½", zinc-plated iron alloy
Bonnet:
½" through 1¼", zinc-chromate plated steel
1½" through 2½", ductile iron ASTM A536
Seal Cap:
½" through 1¼", glass-filled polymer, safety vented
1½" through 2½", zinc-plated steel |
BUTT WELD SHUT-OFF VALVES MATERIAL SPECIFICATIONS
Body:
1½", 2" Forged Steel ASTM A350 Grade LF2
2½" and up Cast Steel ASTM A352 Grade LCB
Charpy impact Test:
–58F (–50°C)
Stem:
stainless steel
Disc holder:
steel
Seat disc:
PTFE Teflon, retained
Ball Bearings:
stainless steel
Packing nut:
steel
Stem packing:
(2) Neoprene O-rings
Handwheel:
steel
Seal cap:
aluminum, vented
Bonnet:
steel
Bonnet gasket:
nonasbestos composite
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GAUGE, PURGE, AND NEEDLE VALVES
MATERIAL SPECIFICATION
Body:
Forged steel, zinc plated
Stem:
Stainless steel, polished, 1/4" 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 (27 bar) SWP
Operating Temperature
:-60F to 240F (-50 to +115°C) |
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