We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Two flange gaskets with O-ring, nitrile rubber, Bell & Gossett 118129

BELL AND GOSSETT

BELL AND GOSSETT 118129 Gasket Flange PK2 trap

SKU CH-M7PS-P0W0A MPN 118129

Gasket and O-ring set fits Bell & Gossett in-line circulating pumps series 2 1/2, HD 3, LD 3 and PD 35, 37, 38, 39, 40

  • TypeDrain Components
  • MaterialHAWA
  • Nitrile rubber gasket resists oil and heat
  • O-ring included for a complete seal kit
  • Fits Bell & Gossett in-line circulating pumps
  • Compatible with Series 2 1/2 in., HD 3, LD 3, PD 35, 37, 38, 39, 40
  • Replaces Grainger parts 4RC97, 4RC98, 4RC99, 4RD02, 4RD13, 4RD14, 5JPD7, 5JPD8

Gasket Flange Kit for Bell & Gossett Pumps

This kit supplies two nitrile rubber flange gaskets with O-rings. They are made for in-line circulating pumps in the 2 1/2 In., HD 3, LD 3, PD 35, PD 37, PD 38, PD 39 and PD 40 series. The material resists water and glycol mixtures in hydronic systems.

Fit for service on listed Bell & Gossett models

Maintenance teams and plumbers replacing seals on these exact pump series will find the correct parts here. Installers working on other brands, different series or larger flange sizes must source alternative gaskets.

Nitrile rubber material with included O-rings

The gaskets use Buna nitrile rubber for compatibility with standard heating fluids. Each set includes the necessary O-rings for a complete flange seal on the compatible models listed.

Highlights

  • Nitrile rubber gasket resists oil and heat
  • O-ring included for a complete seal kit
  • Fits Bell & Gossett in-line circulating pumps
  • Compatible with Series 2 1/2 in., HD 3, LD 3, PD 35, 37, 38, 39, 40
  • Replaces Grainger parts 4RC97, 4RC98, 4RC99, 4RD02, 4RD13, 4RD14, 5JPD7, 5JPD8

Specifications

TypeDrain Components
MaterialHAWA
BrandBell & Gossett
Model118129

Questions about this item

Which Bell & Gossett pump series must I already own for the 118129 gasket flange set to fit?

The set fits in-line circulating pumps in the 2 1/2 In., HD 3, LD 3, PD 35, PD 37, PD 38, PD 39 and PD 40 series.

Will this gasket set work with the older PD 35 and PD 37 pumps I am keeping in the system?

Yes, the nitrile rubber gaskets and included O-ring are compatible with PD 35, PD 37, PD 38, PD 39 and PD 40 models.

How can I confirm the 118129 gasket flange kit is sealing correctly after installation?

Pressurise the pump and check the flange joints for any coolant seepage; a dry joint confirms the nitrile gaskets and O-ring are seated properly.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.