shut-off valves & gate valves
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Categories: Angle seat, straight seat, needle and outlet valves
Housing: 2-part made of brass, stainless steel, GG-25, GSC/steel
Connection variants: internal and external threads, welding ends, DIN flange
Versions: Outlet, straight seat, angle seat, angle and needle valves
Sealing materials: metallic, NBR, EPDM, PTFE
Sizes: 1/8" to 3" and various DN sizes
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Housing design: 2-part
Housing materials: GGG, brass, gunmetal, stainless steel, GG-25, GGG-40, GGG-40.3
Connection variants: internal thread, DIN flange
Sealing materials: metallic, NBR, EPDM
Sizes:
11/4" to 4"
DN40 to DN600
Approvals: DVGW-Wasser
Technical features of our valves
We offer a wide range of manually operated control valves equipped with a precise control cone. These valves enable equal percentage control over the entire stroke.
execution
straight seat valve
angle seat valve
needle valve
angle valve
control valve
Material selection for the housing:
Brass
stainless steel
gray cast iron GG-25
ductile iron GGG-40.3
cast steel
Sealing materials:
Metallic
EPDM
PTFE
NBR
Available connections:
internal thread according to DIN, ISO or NPT
Combinations of internal/external threads according to DIN, ISO or NPT
Welding ends according to DIN 3239, ISO 4200 or DIN EN 10357 A
flange connections according to EN or ANSI
Since 1958
Types and differences of shut-off valves and gate valves
Shut-off valves and gate valves are essential components in many piping systems. They are used to control the flow of media such as water, gas or oil safely and efficiently. But what exactly is the difference between these two types of valves and what variants are there? Here you will find an overview:
shut-off valves
Shut-off valves close the flow by pressing a valve disc onto the valve seat. The movement is triggered by the rotation of a spindle, which is controlled by a handwheel.
Features of shut-off valves:
Precise control: Allows finer control of flow than gate valves.
Compact design: Space-saving, particularly suitable for smaller lines.
High tightness: The design ensures reliable sealing at high pressures.
Variants of shut-off valves:
Standard shut-off valve: The valve disc closes the seat by linear movement.
Needle valve: Here a needle serves as a shut-off device, ideal for particularly fine flow control.
Diaphragm valve: A flexible diaphragm provides sealing, particularly suitable for corrosive or abrasive media.
gate valve
In contrast to shut-off valves, the flow in a gate valve is interrupted by a locking wedge. This is pushed between two seats by the rotation of the spindle.
Features of gate valves:
Minimal flow resistance: When open, there is almost no pressure loss.
Suitable for large pipes: Particularly effective in systems with high flow rates.
Simple design: Less susceptible to wear when solid particles are present in the medium.
Variants of gate valves:
Wedge valve: The shape of the wedge ensures additional tightness.
Parallel gate valve: Uses parallel seating surfaces, particularly suitable for steam or gas lines.
Knife gate valve: With a sharp edge for separating media containing solids, such as sludge.
When is which valve type suitable?
Shut-off valves: Ideal for applications where precision and tightness are required, such as in heating or plumbing systems.
Gate valves: Perfect for large piping systems where low flow resistance is important, such as in water or wastewater systems.
By carefully selecting the right valve, you can ensure efficiency, safety and longevity in your system. Our experts will be happy to advise you on which valve is best suited to your application!
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