Master Stocking Distributor & Valve Automation Shop
J And S Valves
VEC Line Card
GA Figure 3900
GA Figure 3900
2" to 36"
Water Control Valve
GA Industries Figure 3900-D Altitude Valves are self-contained, hydraulically operated, differential piston actuated valves and function without electricity.The valves are installed on the tank fill line and close when the tank is full to prevent overflow.They automatically re-open when supply head falls below tank head to permit flow back through the valve from the tank to the system.The solenoid overrides the hydraulic controls to close the valve anytime upon electrical signal.__GA Industries altitude valves are routinely installed on elevated tanks, ground storage tanks and standpipes and its sensitive pilot is designed to consistently and reliably close the valve at maximum water level so that the tank’s entire storage capacity can be utilized.
Heavy duty, cast iron body with lead-free bronze internals for long term dependable service __V-port trim provides excellent low flow control plus full port capacity __Standard visual position indicator __Super sensitive altitude pilot for accurate, repeatable and reliable level control __Pilot system standard with closing speed needle valve, wye strainer and pilot isolating valves
Body: Cast Iron, ASTM A126 Class B __Cover: Steel, ASTM A36 __Internal Trim: Lead-free Bronze __Renewable Seat: Buna-N __Internal Fasteners: Stainless Steel __External Fasteners: Steel, A307, Zinc Plated (Optional 316 Stainless Steel) __Pilot System: Lead Free Brass, Bronze or Copper
Minimum 6 mil Internal and External 2-Part NSF-61 Carboline 891 Epoxy