Spence Engineering offers a diverse selection of control valves for a wide range of applications. Pneumatic and electric actuator models give you the option on 0-20 psig, 3-15 psig, 4-20 mA, 0-10 VDC, and Split Ranged input signals.
The “BOSS” Series D Valve:
The Boss D series is a cage guided control valve with a superior design that provides exceptional performance up to Class VI. The balanced plug design provides smooth, high pressure control and the ability to use a smaller pneumatic actuator. The Boss control valve is an excellent choice for high capacity commercial applications and is available in end connections through 8″ with pneumatic and electric actuators. Cast Iron Boss D bodies can be used for commercial applications such as building heat, water heating, laundries and cookers.
• D1 – Cage Style, Cast Iron, Balanced, NPT or Flg, 4 Actuator Sizes, 2-8″
• D2 – Cage Style, Cast Steel, Balanced, NPt or Flg, 4 Actuator Sizes, 2-8″
- Spence Control Valves (PDF)