Installation - Yoshitake AL-27 Product Manual

1. Do not install any closing devices such as a stop valve at inlet or outlet side of the product.
2. Do not apply the product to equipment or devices which do not allow any valve seat leakage.
3. Install an exhaust pipe on outlet side of the product, and lead it to a place where there is no risk of
physical damage even if fluid blows out.
* Failure to follow this notice may result in injury and scalds in case of fluid blow out.
4. Do not disassemble the product.
* Failure to follow this notice may prevent the product from functioning properly and lead to danger.
5. Securely connect the product with the piping
* Failure to follow this notice may cause fluid leakage from the connections due to vibration resulting in
injury and scalds.
6. When installing, tighten the hexagonal part of the body with a spanner.
7. Do no apply viscous fluid that may make the valve and valve seat stuck together.
* Failure to follow this notice may cause malfunction due to sticking together of the valve and valve seat.
8. When connecting a pipe to the product outlet, do not adjust the direction of the product by applying force
to the pipe.
* Failure to follow this notice may cause blowout due to damage on the thread or loose connection.
1. When installing the product, match the direction of fluid flow with the inlet and outlet of the product
respectively.
* Failure to follow this notice prevents the product from functioning properly and discharging the
pressure from the outlet and may result in damage to the device or injury.
2. Before installing the product, remove foreign substances and scale from the piping. Be careful that
sealing materials do not contaminate inside of the piping.
*Failure to follow this notice may result in malfunction. Repair due to foreign substances is charged.
3. Install the product vertically with the cap [11] upward. Taking an example with Figure 5, the product
must be vertical against water surface in the tank because the surface is horizontal.
* Failure to follow this notice prevents the product from functioning properly and discharging the
pressure from the outlet.
4. Securely support and fasten the pipes.
(See "7.1 Fitting pipe base" and "7.2 Discharge pipe.")
* The product may be deformed and does not open or close if excessive stress is applied.
5. Do not apply flow rate with the accumulation of more than 25% to the product, or flow velocity at the
outlet side exceeds 2 m/s and causes noise and vibration.
6. Secure enough space around the product for its maintenance and inspection.

7. Installation

Warning
Caution
7
■EPDT-351■