Nor-Cal Products’ pneumatically actuated isolation pendulum valves contain the same patented Penduroll mechanism that is found in the IntellisysTM throttling pendulum valves. These valves offer the user a highly reliable, compact and low-cost alternative to competitive designs. In addition, the smooth actuation results in low particle generation and rapid open-to-close speeds. The valve body can be heated to 150ºC with optional heater jackets. In-situ serviceability of the valve is made possible through the incorporation of a removable bonnet cover. The entire gate assembly and sealing O-ring can be accessed without removing the valve from the system, making regular inspections, cleanings, and O-ring replacements quick and easy.