QB1 SINGLE PORT EXHAUST VALVE

group name: WATER CONTROL VALVE

Min Order: 1 piece

brand name: KRV

model: DN15-DN150

Nearest port for product export: Tianjin, Shanghai, Qingdao, Dalian

Delivery clauses under the trade mode: FOB, CFR, CIF, EXW

Acceptable payment methods: T/T, L/C, Credit Card, Westem Union, Cash

update time: Fri, 14 May 2021 17:46:51 GMT

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Packging & Delivery

Min Order1 piece

Briefing

the negative pressure will appear in the pipe at any time. Automatic suction can protect the safety of the pipe.

Detailed

Product use

1. This valve is suitable for water and hot water pipes with temperature not exceeding 100 ℃, so that the air in the pipe can be completely discharged.

2. When installing double port exhaust valve, a protective valve and ball valve must be installed at the bottom to avoid water cut-off during inspection.

technical parameter

Valve body and cover	Cast iron, stainless steel, carbon steel	Test items
Floating ball	304 stainless steel, exhaust port, steel H59 brass	working pressure	1.0MPa
seal ring	Nitrile rubber	Sealing pressure	1.1MPa
elasticity filature	A3	Strength pressure	1.5MPa

QB1 single port exhaust valve drawing

Screw thread dimensions

Nominal diameter	ZG	Φ	H
15	1/22”	135	205
20	3/4”	135	205
25	1”	135	205
40	11/2”	150	205
50	2”	150	205

Flange dimensions

Nominal diameter	D	D1	D2	Φ	H
15	95	65	45	135	210
20	105	75	55	135	210
25	115	85	65	135	210
40	140	115	80	150	210
150	160	125	100	150	210