This is a valve which entails multiple turns during hand operation. It is basically a linear action valve that has a piston or disk which seats on a single shaped seat or flat.
They are mainly used to control the opening and closing of fluid flow.In the plumbing industry, globe valves are used to tightly seal when fully closed.This controls high pressure fluid streams in pipes. Fluid pressures vary from time to time while flowing. The valves have a stem that is vertically positioned in the body of fluid flow to control the changes in pressure. It has a globe-shaped body that is mainly separated by an inner baffle. It is the baffle which controls the flow and has two parts: ring shaped seat and the flat plug. we offer metal seatings so that the seating stress must not only high ,but also circumstantially uniform to achieve the desired degree of fluid tightness.
A Stem [shaft] which moves perpendicular to the axis of flow of the working medium, there will be one gate or wedge in gate valve and it will control the fluid flow. Shape of gate or wedge of gate valve will be a type of flat circular plate or rectangular plate. Sometimes, gate or wedge is also termed as disc of gate valve.
Gate Valve handle wheel when rotated in clockwise direction, steam and gate will move in downward direction across the fluid flow line and gate will be tightly located between the two seats. Hence there will not be any leakage of fluid through the valve once valve is closed completely. When handle wheel will be rotated in anti-clockwise direction, steam and gate will move in upward direction across the fluid flow line and valve will be opened from closed position and will permit the flow of fluid through the gate valve. Once gate valve is completely opened, it will permit no resistance or very little resistance to the flow of fluid.
Automation series ball valve accepts an actuator or gear box can be bolt directly on the mounting pad (as per ISO 5211) of the valve body. No. extra brackets/couplers are required. The bottom of the actuator is rest on the mounting pad of the valve. There are no external moving parts. The coupler/adapter is less subject to corrosion. An external bracket does not exist to create surfaces that may be untrue. This design alleviates a number of problems mentioned above
Automation Series Ball Valves known as Direct Mounting Pad Ball Valve, ISO Mounting Pad Ball Valve, ISO 5211 Direct Mounting Pad Ball Valve, Remote Operated Ball Valve, Pneumatic Operated Ball Valve, Actuator Operated Ball Valve, Fire Safe Ball Valve, Fire Safe Approved Ball Valve, API 607 Fire Safe Design Ball Valve, API 6D Ball Valve, Automatic Ball Valve, Electrical Operated Ball Valve.
Valves are Bolted cover design up to 600# and above pressure seal design. It is designed for long service life and maintenance free operation. It has a full-flow area body and is equipped with a disc arm with dual precision pins for optimum disc connection and protection against damage due to vibration.
OPERATING PRINCIPLE- A swing check valve consists of a flap or disc of the same diameter as the pipe bore, which hangs down in the flow path. With flow in the forwards direction, the pressure of the fluid forces the disc to hinge upwards, allowing flow through the valve. Reverse flow will cause the disc to shut against the seat and stop the fluid going back down the pipe. In the absence of flow, the weight of the flap is responsible for the closure of the valve; however, in some cases, closure may be assisted by the use of a weighted lever.
Butterfly valve is a flow regulating disc valve, rotary valves in which a disc – shaped closure member is rotated through 90º, or about to open or close the flow passage. The main function of these valves is to control the flow of liquids through a section of pipe. Butterfly valves are mainly used in waste treatment systems.
Butterfly Valve movement of the disc will depend on whether the valve is open or closed either partially or completely. If the valve is opened partially, it means that the disc will not be rotated a full one quarter turn, thus it cannot provide unrestricted passage. This means that, smaller amounts of fluid or air will pass through. However, if the valve is opened completely, the disc will be rotated 90 degrees then larger amounts of air or fluid will pass through.
A diaphragm valve, or membrane valve, is a valve with an elastomeric diaphragm and a seat upon which the diaphragm rests when it is closed. The flexible diaphragm obstructs, controls, or isolates the flow of fluids and acts as a flow control device.
Diaphragm Valves are designed and manufactured as per BS 5156. They are widely utilized in water treatment plants, fertilizer & petrochemical industries, pharmaceutical units, chemical process units, refineries and power plants. They are more appropriate for positive pressure and high vacuum conditions. An extensive range of materials are available to handle almost all operations within its pressure-temperature limitations.