Street Address: No. 463 Jinhui Road
City: Shanghai
Province: Shanghai
Country/Region: China
Standard or Nonstandard:Standard
Power:Hydraulic
Temperature of Media:High Temperature
WF
2,000 thru 15,000 psi, 1-13/16" to 7-1/16" The valve is available with an optional manual closing and locking screw. The adjusting nut in the bind cylinder head absorbs the overload or testing pressure applied to the opening side of the valve, protecting the stem from overload. The cylinder ports are located a sufficient distance from the cylinder head to allow in the piston cover the exhaust port before the end of the stroke. This arrangement provides enough damping to protect the cylinder from shock loading. The overload or testing pressure applied to the closing side of the cylinder is absorbed when the piston bottoms out against the packing gland of the stem. The tail rod and the operating stem have back seating shoulders which allow replacement of the stern packing while the valve is under pressure.