Gate valves can be into cast gate valves and forged gate valves, Gate valve designed in according to API 600.602.603 specifications. Gate valve are available in 2 basic connection: Threaded End and flange end. Gate valve has Rising Stem and Non-Rising Hand Wheel When the gate valve is fully open, the disk of a gate valve is completely removed from the flow. Therefore virtually no resistance to flow. Due to this very little pressure drops when fluid passes through a gate valve.
Knife gate valves are designed mainly for on-off and isolation services in systems with high content of suspended solids. The knife gate valves are especially beneficial for handling slurry, viscous, corrosive and abrasive media. The valves have a minimised pressure drop in fully open position, they are easy to actuate, they have a relatively low weight and are cost effective.
Retainerless design flange type dual plate check valve suitable for use in countries with a lot of earthquakes or in environments where there will be vibrations. Retainerless body twin disc flange type check Valve design with no external body penetrations eliminating the possibility of outside leakage. Double flanged style twin door check valves bolt up similar to a bolted cap swing check or gate valve. Double flanged style twin door check valves versions are offered as standard on larger size valves where the lay length of the body permits installation of two heavy nuts between the flanges.
Gate valves offer an unobstructed media flow from any direction of the valve body. It does not decrease pressure which makes it suitable for pipeline where the flow direction may change. The overall structure length of gate valves is shorter than globe valves. The valve clack aligns with the valve body, thus making the structure length of gate valves shorter than globe valves. The seal functioning is quite good thus, making it less eroded while it is open. As compared to globe valves, the erosion of sealing surface is lighter. The valve body is simple and easy to operate. It features a good casting process which offers a wide range.
Globe Valves that are primarily used to stop, start and regulate fluid flow in pipelines. Globe Valves can shut off fluid flows by moving the disc against the flow stream.Globe valve is a valve used to stop, start, and regulate the fluid flow. The globe valve is an excellent valve to use for on-off, is highly suited for install one the pipeline which needs open and close frequently and control of fluids. Globe valve is used as an automatic control valve, globe valve also be used in water, chemical, air, oil medium and the services where pressure drop is not an issue. Globe valve seat leakage is less as compared to the gate valve, mainly purpose is the right angle contact between the disk and seat ring, which allows tighter seal between seat the disc. Therefore, the globe valve is better at regulating .
Knife gate valves designed for use in the pulp and paper industry. Utilizing a sharp, beveled edge, a knife gate was ideally designed to cut through the stringy pulp encountered in the pulp and paper industries. The benefits of knife gates also include that they are easy to actuate and cheap to produce. can be applied wastewater treatment, oil and gas, mining, and power. Knife gate valves became advantageous in sludge and slurry applications because their blades can cut right through thick liquids easily.