Product Information
Valve Bypass
Compatible with 11 equipment models
- C 1050 ES LP Bosch Greentherm Gas Tankless Water Heater C 1050 ES LP
- C 1050 ES NG Bosch Greentherm Gas Tankless Water Heater C 1050 ES NG
- C 950 ES LP Bosch Gas Tankless Condensing Water Heater Greentherm C 950 ES LP
- C 950 ES NG Bosch Gas Tankless Condensing Water Heater Greentherm C 950 ES NG
- T9800SE 160 Greentherm T9800SE 160 Tankless Water Heater
- T9800SE 199 Greentherm T9800SE 199 Tankless Water Heater
- T9800SEO 160 Greentherm T9800SEO 160 Tankless Water Heater
- T9800SEO 199 Greentherm T9800SEO 199 Tankless Water Heater
- T9900iSE 199 Greentherm T9900iSE 199 Tankless Water Heater
- T9900SE 160 Greentherm T9900SE 160 Tankless Water Heater
- T9900SE 199 Greentherm T9900SE 199 Tankless Water Heater
Please note: Hydrowest Products Ltd. is a wholesale distributor and sells exclusively to licensed contractors and trade professionals.
Fast Shipping
In-stock orders ship within 1 business day to anywhere in Canada.
Code-Compliant
All products meet Canadian HVAC and gas code standards.
Wholesale Pricing
Trade pricing for licensed contractors. 40+ years in the industry.
Bosch Valve Bypass (P/N 87387025610) is a hydraulic bypass/overflow valve for hot-water heating systems that diverts flow between supply and return to protect heat sources and maintain pump operation under low-load or high-pressure conditions. It aids hydraulic balancing, reduces pressure differentials and cavitation risk, and is appropriate for primary/secondary or injection circuits in residential and commercial boiler and heat‑pump installations. Bosch North America documentation for this part number was not found; description uses Bosch material on bypass valves. (bosch-homecomfort.com)
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