{"product_id":"bell-gossett-101233lf-check-trol-isolation-flange-1-1-4-npt","title":"Bell \u0026 Gossett 101233LF Check-Trol Isolation Flange 1-1\/4\" NPT","description":"\u003cp\u003eThe Check‑Trol isolation flange delivers secure shut‑off and back‑flow prevention for hydronic heating and cooling loops. Designed for the **101233LF** model, this flange provides a compact, field‑replaceable solution that isolates the check valve without compromising system integrity.\u003c\/p\u003e\u003cp\u003eIt combines a spring‑loaded check valve with an isolating swivel, allowing technicians to disengage flow for servicing while the valve remains seated. The NPT 1-1\/4\" connection ensures a tight seal, and the robust carbon‑steel body tolerates high‑pressure environments.\u003c\/p\u003e\u003ch4\u003eKey System Performance Baselines:\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeak Prevention:\u003c\/strong\u003e Maintains a seal under pressures up to 150 psi.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eServiceability:\u003c\/strong\u003e Enables isolation without depressurizing the entire loop.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits standard 1-1\/4\" NPT connections on Bell \u0026amp; Gossett units.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e⚠️ \u003cstrong\u003eApplication Profile:\u003c\/strong\u003e Ideal for commercial boiler systems, chilled‑water loops, HVAC heat exchangers, and any hydronic circuit requiring reliable back‑flow protection and easy maintenance.\u003c\/p\u003e","brand":"Bell \u0026 Gossett","offers":[{"title":"Default Title","offer_id":43118261108830,"sku":"101233LF","price":204.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0663\/7151\/8558\/files\/101233LF_image_ec816317-40b4-4645-894a-175b000b5ee8.png?v=1785969225","url":"https:\/\/nationalboilersupply.com\/products\/bell-gossett-101233lf-check-trol-isolation-flange-1-1-4-npt","provider":"National Boiler Supply","version":"1.0","type":"link"}