We provide Gate Valves, Globe Valves and Check Valves.
Delta gate valves offer the ultimate in dependable service for steam, air, gas, oil vapor and high pressure installations. All have straight-through ports to assure minimum turbulence, erosion and resistance to flow. They are available in a wide variety of trims.
Compensates for deformation of body due to pipe stresses, Will not stick when valve is closed hot and allowed to cool, Seat ring is seal welded to eliminate leak path.
Delta Globe Valves are highly efficient for services requiring frequent operations and throttling when pressure drop across the valve is about 20% of inlet pressure.
Plug type disc is standard for class 150 valves, sizes 2" - 10"; and class 600 valves, sizes 2" - 4". Equilibrated type disc is standard for class 150 valves, sizes 12" and larger, class 300 valves, sizes 10" and larger; and class 600 valves, size 6" and larger, Seat ring is seal welded to eliminate leak path behind rings.
Check valves are automatically actuated. They are opened and sustained in the open position by the force of velocity pressure and closed by the force of gravity. Seating load and resultant tightness is dependent upon back pressure.
Swing check valves are used to prevent reversal of flow in horizontal vertical pipe lines. In vertical lines, or any angle from horizontal to vertical, they can be used for upward flow only
Class 150 valves 1.5" - 30" and class 300 valves-sizes 1.5" - 30" feature an internally mounted hinge pin which eliminate leak path. For Class 600 valves, a ring joint bonnet gasket assures positive seal against leakage and accurate alignment of moving parts. Seat ring is seal welded to eliminate leak path behind rings.