AW301H Hansen 3" Ammonia Shut-off Valve, Angle, Welded, Handwheel

Hansen low pressure drop refrigerant shut-off valves are designed to be butt-welded directly to steel piping, thereby eliminating potential leaky flanges or threaded joints and simplifying installation. Cast steel bodies are lightweight, yet have substantial wall thickness to overcome corrosion potential. The cast steel body is rigid, reducing the potential for seat leakage due to flexing of the valve body under abnormal conditions. The "heart" of Hansen shut-off valves is the patented no-leak seal-plus-stempacking design. This seal design is used exclusively on Hansen shut-off valves and virtually eliminates stem seal leakage.

Applications

Typical uses include:

Ammonia refrigeration system suction, liquid,discharge, recirculating liquid, hot gas, thermosyphon,and oil lines, using handwheel or seal cap models.The low friction, no leak stem seal design permits theuse of chain actuation for crossover applicationswithout the need to retighten the packing.Steel pipe portions of halocarbon, commercial,industrial, and air conditioning systems, using sealcap models.

Key Features:

• Polished Stainless Steel Stem
• No Leak seal Pluc Packing
• Ball Bearings
• Back Seat for Seal Replacement
• Taper Seat

Additional Features:

• Globe and angle valves available
• Interchangeable handwheel or seal cap.
• 2" thru 10" machined to Schedule 40 pipe, 12" and above Standard Weight pipe.
• Teflon seat disc.
• Chain actuators available.
• Suitable for ammonia, R22, R134a, R507, and other compatible refrigerants.
• Suitable for CO2 systems on request.