What are the payment terms?

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

What is the lead time for production?

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

What is the pressure rating of the valve?

The pressure grade ranges from PN10 to PN25, which corresponds to 1.0 to 2.5 Mpa.

Double Orifice Air Release Valve (QB2) Two Port Suction Valve

Name: Double Orifice Air Release Valve (QB2) Two Port Suction Valve
Brand: ZHEJIANG MENCROWN VALVE CO., LTD.
SKU: 812973795

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 Effect Functionality: Allows air escape during filling, air entry during emptying, and continuous automatic control under pressure.

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

High Pressure Resistance: Rated for pressure grades 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.

Full Customization Available: Manufacturing available based on customer samples, designs, or drawings with flexible customization options.

Strict Quality Inspection: 100% visual and functional inspection performed on all finished products.

Long Export Experience: Company has 26 years of export history serving global markets.

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

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: ≤18h

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 providing continuous automatic control to eliminate accumulated air under pressure.

Q:What materials are used for the valve components?

The body and bonnet are made of cast iron or ductile iron, the disc is carbon steel, while the float ball and stem are stainless steel. Gaskets and washers are NBR.

Q:What is the operating temperature range?

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

Q:Can the valve be customized?

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

Q:What is the minimum order quantity?

The minimum order quantity is 1 piece.