Sempell Model 803 DIN Swing Check Valve
Type 803 is a free-swinging swing check valve. It will be partly or completely opened depending on the difference pressure. In case of decrease or reversal of the difference pressure, the valve will be closed by its own weight to prevent a damage of the turbine by backflowing medium. Mounting an pneumatic or hydraulic actuator supports this quick-closing function. Mounting an inductive remote transmitter shows the opening angle of the sealing plate. The valve is designed for a pressure range from PN 25 to 63. The cast steel body will be inserted into the line by welding ends, flanges or by direct welding-in.
Features
Low maintenance gland can be retightened.
Hardfaced sealing faces at disc and body seat.
Low friction by burnished shaft.
Surfaces treated bearing faces on each part with relative motion.
Easy to disassemble bodies.
Mechanical taking of control angle directly at disc lever.
Mounting of pneumatic or hydraulic actuators.
Actuator mounting right or left possible seen from steam flow direction.
Universal connections by various design of welding ends and flanges as standard.
Deviating designs of welding ends in regard of dimension and material as well as other actuators, limit switches and special designs according to customers‘ request can be supplied.
Specifications
Body Design: Long Pattern
Material: Alloy, Carbon Steel, Metal, Steel
Operating Temperature: High Temperature
Pressure Class: ASME, PN
Process Connection Type: BWE
Seat/Seal Type: Metal-to-Metal, Swing
Shutoff Class: Class V (FCI 70-2)
Standards: ASME B16.34
Style: Direct-Operated
Valve Size: 5 inch, 6 inch (DN150) and Larger, NPS 3 / DN 80, NPS 4 / DN 100
Valve Size Standard: DN, NPS
Valve Type: Engineered Product
