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Windsor XL 1in. Control Valve – Chrome


  • Manual radiator valve ideal for one-pipe steam radiators
  • 1″ NPT x 1″ FIP connections
  • Durable chrome finish
  • Precision milled brass body with hardwood handle 
  • Triple-seal stem packing
  • Unfailing brass-to-brass seal at valve seat
  • Suitable for steam and hot water radiators
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Additional information

Windsor XL Angled Control Valve

Windsor XL is made for large-bore installations such as one-pipe steam. Use 1in valves for smaller radiators up to 5000 BTUs and 1 ¼in valves for larger radiators.

triple-sealed stem, failsafe double-seal plunger

With a triple-sealed stem, failsafe double-seal plunger, precision-milled solid-brass construction, and a genuine hardwood handle, Windsor XL is also suitable for use with two-pipe steam and hot water / hydronic heating systems.

Windsor XL is designed, from the inside out, to exceed expectations.

Add Niva One-Pipe Steam TRV with air vent included to add comfort and control to any one-pipe steam heating system.

Product Specs
Pipe connection 1″ FIP
Radiator connection 1″ NPT
Finish Chrome
Body material Brass
Handle material Hardwood
Warranty 10 years
Rococo II 22in one-pipe steam cast iron radiator in Beaten Brass with thermostatic radiator valve
Weight 1.9 lbs
Dimensions 5.71 × 4.53 × 2.95 in