Description
2,**0 thru *5,**0 psi, ***3/*6" to **1/*6"
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.
