A49H-Q Explosion proof Wave Safety ValveDetailed product description：

Product Description:
The new product of A49H-Q explosion-proof wave safety valve is mainly used for the head of the medium pipeline network of the civil defense system to prevent shock waves from entering the external end of the system facilities and protect the safety of facilities and personnel.

Performance:
The A49H-Q explosion-proof wave safety valve product is a type of safety valve that can eliminate shock waves and block water hammer shock waves. It is composed of multiple sets of safety valves, and its function cannot be achieved by a single safety valve. The product is installed at the head of the water supply pipeline and the outlet of the civil defense medium for external transportation, combining wave blocking and wave dissipating methods to prevent shock waves from entering the interior of the system facilities engineering, thereby eliminating destructive shock waves and protecting the normal operation and safety protection of the system facilities.

Purpose:
The new product of A49H-Q explosion-proof wave safety valve is mainly used for the head of the medium pipeline network of the civil defense system to prevent shock waves from entering the external end of the system facilities and protect the safety of facilities and personnel.
Working Principle:
Under normal conditions, the valve is in a normally open state, and the system medium is unobstructed. When a shock wave enters the valve, the main valve valve is impacted, overcoming the strong force of the spring and quickly closing to block the shock wave at the outer end. The shock wave that has already entered is introduced into the shock absorber chamber under the action of the shock absorber valve, which resolves the destructive force of the shock wave and achieves the purpose of protection through blocking and resolving.

Exterior installation dimensions:

Nominal diameter DN	D	D1	D2	φ	L	Z-d
forty	one hundred and forty-five	one hundred and ten	eighty-five	one hundred and forty-five	three hundred and forty	4-18
fifty	one hundred and sixty	one hundred and twenty-five	one hundred	one hundred and sixty	three hundred and forty	4-18
sixty-five	one hundred and eighty	one hundred and forty-five	one hundred and twenty	one hundred and eighty	three hundred and eighty	4-18
eighty	one hundred and ninety-five	one hundred and sixty	one hundred and thirty-five	one hundred and ninety-five	four hundred and ten	4-18
one hundred	two hundred and fifteen	one hundred and eighty	one hundred and fifty-five	two hundred and fifteen	four hundred and fifty	8-18
one hundred and twenty-five	two hundred and forty-five	two hundred and ten	one hundred and eighty-five	two hundred and forty-five	four hundred and eighty	8-18
one hundred and fifty	two hundred and eighty	two hundred and forty	two hundred and ten	two hundred and eighty	five hundred and fifty	8-23
two hundred	three hundred and thirty-five	two hundred and ninety-five	two hundred and sixty-five	three hundred and thirty-five	six hundred and thirty	12-23

Main technical parameters:

Nominal Pressure	1.0MPa	1.6MPa
work pressure	0.2-0.6MPa	0.4-0.8MPa
Valve body operating pressure	1.5MPa	2.4MPa
Strength test pressure	2.5MPa	3.6MPa
Applicable Medium	Clear water and oil products
Suitable temperature	0-80ºC
Wave attenuation efficiency	90%