Breathing type safety valve

Breathing type safety valve, mainly for liquefied gas, railway tanker, tank truck, tanker, ground storage tank and heavy oil, ethylene glycol, toluene, acetic acid, two acid medium. The valve installed in the tank top, the exposed height of not more than 150mm, the safety valve has two valve exhaled and inhaled and exhaled inhalation valve and valve clearance, when the container medium overpressure, normally open discharge, when the container pressure below the atmospheric pressure a certain negative pressure, suction valve open the suction air. No Information No Information

Specifications（DN）	Figure No.	weight（㎏platform）	Mounting dimensions (mm)
			d	D	D1	D2	d1	L	H	n
80	GYA-80	38	Φ85	Φ150	Φ185	Φ125	Φ18	376	424	4
100	GYA-100	42	Φ105	Φ170	Φ205	Φ145	Φ18	500	605	4
150	GYA-150	66	Φ148	Φ225	Φ260	Φ200	Φ18	650	705	8
200	GYA-200	97.2	Φ210	Φ280	Φ315	Φ255	Φ18	900	755	8
250	GYA-250	140.0	Φ264	Φ335	Φ370	Φ310	Φ18	1050	885	12