Bell & Gossett 132124 3DS-4S Triple Duty Valve is a 4" flanged hydronic balancing valve for HVAC closed-loop heating and cooling systems. It combines a calibrated balance valve, shut-off valve, and drain connection in one compact body, providing precise flow control and system isolation.

Bell & Gossett model 3DS-4S 4" flanged straight-pattern triple-duty valve. Combined features include a positive shut-off, non-slam check valve, and system balancing. Its ductile iron body is rated to 175 psi and 250°F. This valve is made of heavy-duty cast iron and features a replaceable bronze disc with EPDM insert, a chatter-preventing spring, and brass read-out valves to allow accurate balancing.


A combination shut-off, center-guided non-slam check valve and calibrated balance valve in one device. The combination of three valves in one minimizes cost and reduces installation time. Available in angle or straight pattern in 1' through 16' sizes; in flanged, grooved or NPT connections. The triple-duty valve has a cast iron body, brass seat, cast bronze disc and SS stem. A calibrated nameplate and memory button allow return of the valve to the balanced position after shut-off. The backseating valve stem allows repacking under full-line pressure.


Features:


• Lowest pressure drop.


• 3-Valves in one; center guided non-slam check, calibrated balance and shut-off.


• Maximum range of control (8-9 turns).


• Spring loaded with "soft seat" design.


• Brass seat, stainless steel steam and bronze disc.


• Brass read-out valves.


• Calibrated nameplate & memory button.


• Backseating valve stem.


• Available in flanged, grooved and NPT connections.


• Minimizes cost and reduces installation time.


• Meets ASHRAE 90.1 requirements by providing most energy efficient operation of any similar valve.

 

SOME TRIPLE DUTY VALVES ARE SPECIAL ORDER FROM THE FACTORY. PLEASE CALL FOR AVAILABILITY.