YTC Lock Up valve YTC-YT400-DN1

YTC Lock Up valve YTC-YT400-DN1

YTC Lock Up valve YTC-YT400-DN1

 Maintenance
YT-400/405/430/435 requires regular maintenance. Please refer to below repair kit part list.
It is suggested to replace all three parts at the same time to guarantee the life cycle of the
product.
Upper diaphragm assembly: 1 each
Lower diaphragm: 1 each

O-rings: 2 each
Trouble-Shooting
Please follow trouble-shooting when the product is not functioning properly.
Lock up valve does not block pressure when signal pressure is lower than setting
pressure level.

Please check if the setting pressure level is correct. If the setting pressure level is
extremely high, please lower the setting pressure level. The factory default setting
pressure level is 3 kgf/cm2.
Lock up valve blocks pressure when signal pressure is higher than setting pressure
level.
Please check if the setting pressure level is correct. If the setting pressure level is
extremely low, please raise the setting pressure level. The factory default setting
pressure level is 3 kgf/cm2.
Supply pressure is leaking through the cover holes.
Please check if the upper diaphragm assembly has been damaged on the
diaphragm surface. 

YTC Lock Up valve YTC-YT400-DN1

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