Wcb Double Orifice Vacuum Breaker Air Release Valve (QB2)

• Temperature Applicable: ≤80ºC
• Medium Applicable: Water etc
• Finish: Epoxy Resin Coating / Fine Polish
• Type: Single Oriface / Double Oriface/ Combined Type
• Connecting: Flange / Thread
• Transport Package: Bubble Plastic Paper + Plywood Case
• Model NO.: QB2
• Specification: DN15 ~ DN200
• Trademark: KARFAR
• Origin: China
• Production Capacity: 3000PCS/Month

Product Description

Double Orifice Air Release Valve 
MODEL NO.: QB2

Δ BQ2 air vent is mainly consisted of Body, Bonnet, Stem and Float ball. It is used in pipeline system with water medium. It releases air from the pipeline so as to safeguard equipments in the system and protect pipeline from distortion and fracture. It is a necessary device for pipeline system.

Triple effect air release valve
Application- The valve performs 3 functions:-
1. It allows air to escape when filling the pipe.
2. It allows air to enter when emptying the pipe (preventing pipe collapse)
3. It allows continuous automatic control, eliminating accumulated air, even when the system is under pressure.
 

Serial No.	PART NAME	Material
8	Body	Cast iron / Ductile iron etc
9	Disc	Carbon steel
10	Float ball	Stainless steel
11	Stem	Stainless steel
12	Bonnet	Cast iron / Ductile iron
13	Gasket	NBR
14	Washer	NBR
15	Release cap	Carbon steel
16	Hood	Carbon steel
17	Packing	Graphite
18	Gland	Carbon steel

SIZE:        DN15 - DN200
Pressure Grade:  PN10 ~PN25 (1.0 ~ 2.5Mpa)