Installation - Yoshitake AF-10EN Product Manual

1. Do not install any closing device such as a stop valve at the inlet or outlet side of the product.
* Failure to follow this notice may result in damage to equipment due to insufficient discharge caused
by resistance from the closing device.
2. Connect a discharge pipe at the outlet side of the product, and lead it to a place where there is no risk
of physical damage even if the fluid blows out.
* Failure to follow this notice may result in injury and scales in case fluid blows out.
3. Do not disassemble the product unless it is necessary.
*Unnecessary disassembly prevents the product from functioning properly and leads to danger.
4. Do not apply a viscous fluid that may make fixation of the valve and valve seat.
* Failure to follow this notice may result in malfunction due to the fixation of the valve and valve seat.
1. Before installation, clean the flange surfaces, and remove foreign substances and scale from piping.
* Failure to follow this notice may prevent the product from functioning properly.
* Please note that any repair due to foreign substances or scale is subject to a charge even during the
warranty period.
2. Before connecting the product to piping, check the inlet and outlet of the product so that the fluid flow
direction and the arrow marked on the product are in the same direction.
* Installing the product in a wrong position prevents it from functioning properly.
3. Install the product vertically with the cap [3] upward.
* Wrong installation prevents the product from functioning properly.
4. Pipe connections to the product should fulfill the requirements given in supervisory regulations.
Ensure that the piping can flow all the discharged fluid sufficiently. When the fluid is being discharged
from several safety valves by means of one common pipe, the flow passage area of such common pipe
has to be larger than the sum of the outflow cross-sections of the discharge pipes to be connected to
each of the safety valve. Moreover, the pipe's curve should be gentle, and provide a drain pipe if there is
a risk of rain water or condensate accumulation.
* Rain water or condensate accumulated in the discharge pipe causes malfunction due to rust, etc.
5. Give proper support to the outlet piping that is subjected to the reaction force against the exhaust flowing
up through the exhaust pipe connected to the product.
* Excessive piping stress may deform the product resulting in malfunction.
6. When hot fluid is applied, install the outlet piping in a way that the product is free from the stress caused
by the thermal expansion of the equipment or by the thermal expansion/compression of the discharge
pipe. (See Figure 2.)
7. Securely connect the product to piping.
* Failure to follow this notice may cause fluid leakage from connections due to vibration.
8. Lead the discharge pipe to outside of buildings if there is a risk that fluid blowout causes alarm activation
or contamination of the peripheral equipment.
* Failure to follow this notice may cause contamination of the peripheral equipment.
9. Place where the product is installed should be easily accessible, well-lit and protected from external
factors. In case of installing the product on the outside area, it has to be protected from freezing and
precipitations.
10. Inner diameter of pipe mount and that of discharge pipe should be equal to or larger than that of each
inlet and outlet of the product.
* Failure to follow this notice causes malfunction or insufficient discharge.

5. Installation

Warning
Caution
5
■EPDT-395■