5
Make sure the pipe is not dirty and doesn’t have welding particles, for example, before
installing it. This may cause irreparable damages in the valve when the equipment is started
→ prepare a clean working area.
Plan beforehand enough space for future maintenance operations.
4.2) Installation of valves with flanged ends
Make sure the pipe's and edges flanges of the valve are clean.
Use the corresponding screws in all of the flanges drill holes.
Place an adequate joint in each end and align it in the centre of the flanges.
Tighten screws evenly and cross-shaped to avoid deformations. To do so, you must not force
in any case the pipe to centre the valve; it should take its position smoothly. Last, verify that
screws are tightened with the recommended torque for each type of screw.
Make sure the flanges joints are well placed.
After assembling, check the tightness and performance of the valve.
REMARKS:
- Check Valves, ref. 2403 are designed according to AWWA C508 to be
assembled between flanges ASME B16.10 Class 150 at a maximum working
pressure of 300 PSI.
- Verify good parallelism of the flanges.
- It is recommended the use of filters in the pipe to make the valves longer life.
- Any damaged paint/coating during installation must be immediately repaired.
5. Operation instructions
5.1) Usage
Check valves art. 2403 provide a leakproof seal when used adjusted to the pressure and
temperature values for which they have been designed.
Seat material for the valve, joints, body, disk and axis have to be fully compatible with the
fluid circulating through the valve. Otherwise, valve could be seriously damaged.
This valve is suitable for use in fire protection system.
