Butt's Pumps and Motors
525 Milner Ave. Unit 3, Scarborough, ON M1B 2K4
Tel: 416-754-4300 Fax: 416-754-4286 Email: service@buttspumpsandmotors.ca
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Isolation Flanges - NPT and Sweat Connections

Overview


Bell & Gossett Series LR-20WR, LR-15BWR pumps supplied by Butt's Pumps & Motors Ltd.

Design Features

The isolation flange is a combination of a full port isolation ball valve and a companion flange for circulators. The isolation flange allows easy service or replacement of the circulator without the need to drain the system.
Free-floating flanges eliminate the need to align flanges making the pump installation a snap. Includes capscrews and nuts.
Can be used with most circulators, including NRF/NBF/SSF wet rotors, Series PL’s, Series 100, HV, PR & LR and other manufacturers’ pumps.

Available Sizes:

3/4", 1" & 1-1/4" (refer to dimension and weight table for details).

When closed, the isolation flanges isolate the circulator from the rest of the system so the system does not need to be drained when removing the circulator.

Operating Data

  • Maximum working pressure . . . . . . . 150 psi (10 bar)
  • Maximum operating temperature . . . . . 250°F (121°C)

Materials of Construction

  • Valve Body . . . . . . . . . . . . . . . .  . . . . . . . . . . . . . Brass
  • Flange . . . . . . . . . . . . . . . . . .  . . . . . . Zinc Plated Steel
  • Ball . . . . . . . . . . . . . . . . .   . . . . . . Chrome Plated Brass
  • Packing . . . . . . . . . . . . . . . . . . . . . . . .  . . . . . . . Teflon
  • Seat Ring . . . . . . . . . . . . . . . . . . . . . . . . . . .  . . . Teflon
  • Stem . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . Brass

Applications


Brass and non-ferrous wetted inter-nal components make the isolation flanges ideal for hydronic heating systems.

 

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