Flange gate valves
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Fig.Z101Gate valve with a rubberized wedge cast iron flange, F4, cast iron wedge GGG50 + EPDM, PN16 -
Fig.Z104Gate valve with a rubberized wedge cast iron flange, F4, cast iron wedge GGG50 + EPDM, PN10/16
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Fig.Z104/NBRGate valve with a rubberized wedge cast iron flange, F4, cast iron wedge GGG50 + NBR, PN10/16
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Fig.Z101-IWedge valve with electric drive cast iron flange, F4, wedge-cast iron GGG50 + EPDM, PN16
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Fig.30h6brGate valve 30х6br parallel cast iron flange, PN10
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Fig.30c41nzhGate valve 30s41nj flanged steel (with stainless steel surfacing), PN16
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Flanged cast-iron latch with end signal and position indicator
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Fig.Z101-PWedge gate valve with position indicator flanged cast iron, F4, wedge-cast iron GGG50 + EPDM, PN16
UKSPAR flanged gate valve catalog
The Ukrainian trademark UKSPAR represents a comprehensive range of shut-off equipment for pipeline networks of any level of complexity. You can order from us:
- valves with rubber-coated wedge (cast iron GGG50, coated with EPDM or NBR, PN10/16);
- steel valves with stainless steel wedge overlay (PN16) for more demanding conditions;
- parallel cast iron gate valves (PN10).
Separately available models with an electric drive, with an end signaler and a position indicator for remote control of the valve status in automation systems.
How to choose a flanged gate valve
The choice starts with the operating pressure and environment:
- a rubberized EPDM wedge is suitable for cold water in municipal networks;
- For petroleum products or other specific liquids, NBR seals are chosen.
Body material:
- cast iron for standard water supply and sewage networks;
- steel with stainless steel wedge overlay for industrial pipelines.
The diameter of the valve must match the diameter of the pipeline without any narrowing of the cross section.
Design and principle of operation
The device's operation is based on the principle of moving the shut-off element perpendicular to the direction of the working fluid flow. The main elements of the design are:
- sturdy body;
- cover;
- spindle (shaft);
- locking element – wedge.
The principle of operation is to move the closing element (wedge or disc) perpendicular to the flow of the working medium. The rotation of the flywheel transmits force to the spindle, which moves the wedge up (opening) or down (closing), tightly pressing it against the sealing surfaces of the housing.
Gate valves, unlike taps, are not designed to regulate flow. They can only be in two states: fully open or fully closed. Due to their full-flow design, gate valves create minimal hydraulic resistance.
Wedge materials and coatings
UKSPAR uses two main types of metals to produce housings:
- Cast iron (gray or high-strength). A traditional material for the utility sector, characterized by durability and wear resistance.
- Steel (carbon or stainless). Used in systems with extreme temperatures and high pressure, where increased plasticity of the metal is required.
Of particular importance is the coating of the locking element. The most popular design is one with a rubberized wedge. A special layer of elastic rubber (EPDM) completely covers the metal base of the wedge. This guarantees class "A" tightness and prevents corrosion inside the locking unit.
Equipment
The basic equipment includes a handwheel for manual opening and closing of the latch.
For remote control, the valve is equipped with an electric drive that rotates the spindle according to a signal from the controller without the physical presence of the operator.
If you additionally order a valve with an end signal and position indicator, it will be possible to visually and remotely control whether the valve is open or closed. This is important for long pipelines.
Areas of application
Flanged valves from UKSPAR work at the most responsible facilities. They are widely used for water supply and sewage systems. They are excellent for heating networks, where full passage without narrowing is required. They are also used at pumping stations and treatment plants.
The simplicity of the design makes them maintainable. Replacing seals or a flywheel is possible without dismantling the entire body from the pipe. If you are interested in a flanged valve, its price and range - UKSPAR specialists will help you choose the optimal model according to the parameters of your system.