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Classification：Relief valve
Trade names：
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| Pulse type relief valve |
| Type of the products: GA49H-4 DN25 |
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Explanation :
Used in the boiler of hydropower station , pressure container such equipment as the device ,etc. mainly, reduce and reduce pressure , prevent the pressure from exceeding and allowing supreme pressure value, guarantee the safe operation of the equipment. |
The structure sketching :
1, pressure of one of balance valve comes through the lever and heavy hammer , make the valve guarantee to seal, move serious position and change serious weight of hammer of hammer come pressure of take-offing required to reach.
2, seal is it weld to pile by base chromium nickel stainless steel with iron , valve petals of heat treatment of passing, have improved the wearability and resisted the eroding.
3, the top of the valve has electro-magnets opened and closed , machinery and electric apparatus movement do not interfere each other. |
It explains to install :
1, this valve should be used with the A49H-4 type main relief valve together.
2, the relief valve of the pulse should be strict and vertical when installed, the lever should keep competence , two side interval must be even with leading the fork.
3, before the relief valve of the pulse is installed, should rinse the pipeline well .
4, pulse relief valve is it is it keep certain longer distance when in charge of with main entry of relief valve to in charge of to draw, the distance when in charge of in the manometer of electric contact and main relief valve entry , can't be smaller than the entry pipe diameter of 5 times of main relief valves , in case that main relief valve at the movement , arrange vapour influence electric contact manometer and pulse exactness that relief valve work.
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