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Low-Pressure. Simple Installation. Lightweight.

Butt Weld Shut-Off Valves (52bar)

These 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.

Forged and cast steel bodies are lightweight, yet have substantial wall thickness to help overcome corrosion loss. The cast steel body is rigid, reducing the potential for seat leakage due to flexing of the valve body under abnormal conditions.
  • Globe and angle valves available.
  • Low pressure drop design
  • Interchangeable handwheel (STANDARD) or seal cap.
  • Teflon seat disc.
  • Also available as Hand Expansion Valve.

Applications

Typical uses include:

Ammonia, Halocarbon, or CO2 refrigeration system suction, liquid, discharge, recirculating liquid, hot gas, thermosyphon, and oil lines, using handwheel (standard) or seal cap models.

Installation

All Hansen welded valves can be installed in horizontal or vertical pipe lines. Stems are normally installed horizontally, but, depending on the application, stems may be installed vertically. Inlet pressure or direction of flow for all valve sizes should normally be under valve seat disc. However, to avoid installing an angle valve with the stem down, it is better to install the valve with the normal flow opposite the direction of the arrow.

MATERIAL SPECS

Body: 1⁄2" to 11⁄4" (13mm–32mm), forged steel, ASTM
A350 Grade LF2; 11⁄2" to 3" (40mm–450mm), cast steel, ASTM A-352, Grade LCB
Bonnet: Forged Steel, ASTM A350 Grade LF2
Stem: Polished stainless steel