Belimo B311 Valve 321142-301 Direct Technical Fit: Sized at

Direct Technical Fit: Sized at 6 5/8" x 6 3/4" with a 1/2" bore for seamless installation without shaft modification

The pitch is adjusted by loosening the set screw and rotating the threaded movable section of the sheave to increase or decrease the effective diameter

a specific natural gas version with a Buna-N diaphragm must be used to ensure chemical compatibility

simplifying inventory and part identification for field repairs

Belimo B311 Valve 321142-301 Direct Technical Fit: Sized atWhen you need precise flow control in hydronic systems, the Belimo B311 valve is a robust choice. This 3 way ball valve HVAC component features a 1 2 inch NPT connection and a 1. 9 Cv rating, engineered for reliable performance in both chilled and hot water applications, accommodating up to 60% glycol solutions. Its nickel plated forged brass body, coupled with a stainless steel ball and stem, ensures durability and resistance to corrosion in