What payment methods are accepted?

We accept LC, T/T, D/P, PayPal, Western Union, and small-amount payments.

How long is the lead time for production?

During peak season, the lead time is one month; during off-season, it is within 15 workdays.

Is quality inspection performed on all products?

Yes, 100% inspection including visual and functional checks is conducted on all finished products.

Double Orifice Acting Vacuum Breaker Air Release Valve (QB2)

Name: Double Orifice Acting Vacuum Breaker Air Release Valve (QB2)
Brand: ZHEJIANG MENCROWN VALVE CO., LTD.
SKU: 1910530695

Zhejiang, ChinaZHEJIANG MENCROWN VALVE CO., LTD.

US$40.00

1-9 Pieces

US$32.00

10+ Pieces

Product profile

Customization

Available

Temperature Applicable

≤80℃

Medium Applicable

Water etc

Model NO.

QB2

Transport Package

Bubble Plastic Paper + Plywood Case

Specification

DN15 ~ DN200

Trademark

KARFAR

Origin

China

Production Capacity

3000PCS/Month

Key features

Triple Function Air Release: Escapes air during filling, enters air during emptying to prevent collapse, and removes accumulated air under pressure.

Wide Size Range: Available in sizes from DN15 to DN200 to fit various pipeline requirements.

High Pressure Resistance: Supports pressure grades from PN10 to PN25 (1.0 to 2.5 Mpa).

Durable Material Construction: Body and bonnet made of cast iron or ductile iron; float ball and stem are stainless steel.

Temperature Adaptability: Designed to operate effectively with water media at temperatures up to 80 degrees Celsius.

Full Customization Options: Offers full customization, minor customization, and flexible customization based on samples or designs.

100% Quality Inspection: Every finished product undergoes visual and functional inspection before delivery.

Low Minimum Order Quantity: Accepts orders starting from just 1 piece for flexible purchasing.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export Experience

ZHEJIANG MENCROWN VALVE CO., LTD.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 26 Years CertifiedNearest Port: Ningbo Port; Shanghai PortAverage Response Time: ≤11.86h

About Our Factory & Business Background

AddressSanqiao Indusrial Park, Wenzhou, Zhejiang, China

Plant Area6217.9 square meters

Number of Employees29

Registered Capital53,400,000 RMB

Terms of PaymentLC, T/T, D/P, PayPal, Western Union, Small-amount payment

International Commercial Terms(Incoterms)FOB, CIF, CFR, EXW

Average Lead TimePeak Season Lead Time: one month Off Season Lead Time: within 15 workdays

Minimum Order Quantity1 Pc

Supply Chain Partners50

Our Production Capability & Technical Expertise

Main ProductsValve, Check Valve, Control Valve, Hydraulic Control Valve, Pressure Reducing Valve, Butterfly Valve, Gate Valve, Ball Valve, Globe Valve, Non-Slam Check Valve

Production Lines20

Production MachinesDrilling machine, CNC machine, vertical lathe, Lathe machine

QA/QC inspectors2 people

Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)

Inspection Method for Finished ProductsHave instructions and uniformly followed

R&D Engineers5 people

Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment1998-06-04

Main MarketsNorth America, South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia, Domestic

Repeat Buyers Choice50%~80%

Number of Foreign Trading Staff1

Overseas Agent/BranchNo

New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:What are the main functions of this valve?

It performs three functions: releasing air during pipe filling, allowing air entry during emptying to prevent collapse, and continuously removing accumulated air even under pressure.

Q:What materials are used for the valve body and internal parts?

The body and bonnet are made of cast iron or ductile iron, while the float ball, stem, and release cap are made of stainless steel or carbon steel.

Q:What is the maximum operating temperature?

The valve is applicable for water media with temperatures up to 80 degrees Celsius.

Q:Can this valve be customized?

Yes, we offer full customization, minor customization, and flexible customization options based on samples or designs.

Q:What is the minimum order quantity?

The minimum order quantity is 1 piece.