Check Valve Application
Swing Check valves prevent reversal of flow through pipe lines. Most Derval Swing Check valves can be installed in horizontal or vertical, upward flow, piping. They offer low resistance to flow and are particularly suited to low velocity service. They are widely used for water, saturated steam, air, gas, oil and crude oil products. Operating parameters are in accordance with ASME B16.34 standard.
Check Valve Installation
Swing check valves can be installed either horizontally or vertically. If installed vertically, disc must be in upper position and flow direction must be upwards (under disc). The high-quality Derval valves are installed in a large variety of services in the Oil & Gas field, Chemical and Petrochemical industry, in On-shore and Off-shore drilling/refining, Power Generation and Water and Waste Treatment industries.