Tilting disc check valves
Tilting disc check valves are designed to open and close faster than a standard check valve. Rapid operation is required when critical components must be immediately protected against backflow. However, many check valves are only able to close when the upstream flow is completely lost.
In systems where backflow can occur rapidly, such as pump systems in a high-pressure system, this can lead to major problems. In extreme cases, the resulting water hammer can disrupt entire piping and pump systems.
- Range: DN50 to DN1000
- Pressure: 0 barg to 100 barg (PN10-100 and 150lbs.-600lbs.)
- Temperature: -20⁰C to 525⁰C
- Design: 1-piece casing
- Tightness: uni-directional tightness (EN 12266-A or B)
- Casing material: cast iron, steel, stainless steel, Duplex
- Sealing material: EPDM, NBR, Viton, metal
- Exotic materials possible: yes
Because the disc of a tilting disc check valve is mounted tilted at an angle of 15⁰, this valve opens at speeds from 0.6 m/sec with minimal response times. This prevents the disc from ‘misfiring’ at low speeds and prevents wear on the stem, springs and bearings. The self-centring seal provides an excellent seal at both high and low pressure differentials. In addition, the valves can be expanded with extra springs to increase the response speed if there is a high risk of a rapid backflow.
The result is a stable check valve with a fast response time that requires minimal maintenance. This makes this valve suitable for any application requiring a quick response.
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