Shut-off valves
Shut-off valves: For safe operation of your machine or system.
To ensure the safe operation of your machine or plant
A shut-off valve has a clear function: to reliably shut off or allow the flow of a medium. Whether compressed air, water, oil or corrosive chemicals – in industrial pipework systems, shut-off valves must still close securely after thousands of operating cycles. TRI-MATIC stocks a wide range of shut-off valves for the process industry, plant engineering and building services. All valves are available in various materials (brass, 316/316L stainless steel and steel) and nominal diameters from DN6 to DN300, with pressure ratings up to PN410.
Selecting the right shut-off valve
The choice of the right shut-off valve depends on several factors: the application, the medium (liquid, gas, corrosive chemicals), the operating pressure and temperature, the required level of tightness, and the available installation space. TRI-MATIC is happy to assist you with valve selection by providing technical advice, Kv calculations and material recommendations. On request, we can supply fully assembled units including actuator, limit switches and positioner.
An overview of shut-off valve types
Different designs are suitable depending on the medium, pressure rating and installation situation. The most important shut-off valves in the TRI-MATIC range:
Can't find the right shut-off valve type?
We provide personalised advice and find the optimal solution for your application.
Applications of shut-off valves
Shut-off valves are used in numerous industrial sectors. The right selection ensures process safety, minimal maintenance and a long service life.
FAQ
A shut-off valve is a fitting that either fully allows or completely blocks the flow in a pipe. Unlike control valves, which adjust the flow rate continuously, shut-off valves operate on the ‘open-closed’ principle. Typical types include ball valves, solenoid valves, butterfly valves, gate valves and needle valves.
The choice depends on the medium and the operating conditions:
- Water and compressed air: Brass or stainless steel ball valves are the most cost-effective solution.
- Corrosive chemicals: 316L stainless steel shut-off valves with PTFE seals offer high resistance.
- Food and pharmaceuticals: Hygienic ball valves or butterfly valves made from FDA-compliant materials with TRI-CLAMP connections.
- Bulk solids and powders: Full-bore gate valves.
TRI-MATIC can advise you on the choice of materials and design for your specific application.
A shut-off valve is the umbrella term for all fittings that block or allow flow. A stop valve (e.g. a ball valve) is a specific type of valve in which a rotating body opens or closes the passage. Other types include solenoid valves, gate valves, butterfly valves and valves with linear stroke movement. In practice, the term ‘stopcock’ is often used as a synonym for a ball valve.
Yes. TRI-MATIC supplies shut-off valves with pneumatic or electric actuators as ready-to-install assemblies. Depending on requirements, these include limit switches for position feedback, solenoid valves for control and positioners for regulation. All components are assembled, tested and documented at the factory.
Valves from TRI-MATIC
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