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Combination Air Valve DN50-DN300 for Water Supply and Pipeline Ventilation Systems
US$195.00
1-9 Pieces
US$145.00
10-49 Pieces
US$118.00
50+ Pieces
Sample price:US$245.00/piece.Request sample

Product profile

Customization

Available

Type

Compound Exhaust Valve

Material

Iron

Model NO.

CARX-1

Certification

CE, ISO9001

Product Name

Combination Air Valve

Model

Carx-16q-DN100

Valve Type

Combination Air Release Valve

Function

Automatic Air Venting & Vacuum Relief

Nominal Diametre

DN50 - DN300

Nominal Pressure

Pn10 / Pn16

Internal Component

Stainless Steel Float + Stainless Steel Stem

Advantages-01

Automatic Double Orifice Air Release

Advantages-02

High Capacity Exhaust & Vacuum Protection

Transport Package

Seaworthy Wooden Case

Specification

DN50 - DN300, PN10 / PN16

Trademark

Zentif

Origin

China

HS Code

8421199090

Production Capacity

50000

Key features

Automatic Double Orifice Design: Ensures efficient removal of trapped air and rapid vacuum relief for system stability.
Robust Ductile Iron Construction: Corrosion-resistant body with coating ensures durability in water supply systems.
High-Pressure Testing: 100% pressure tested to international standards before shipment to guarantee reliability.
Zero Water Leakage: Float-type mechanism provides excellent sealing performance to prevent water loss.
Wide Size Range: Available in nominal diameters from DN50 to DN300 for diverse pipeline applications.
CE and ISO9001 Certified: Meets international quality and safety standards for industrial and municipal use.
Customization Options: Offers customized flange standards and material options (SS304/SS316/WCB) for specific projects.
Low Maintenance Design: Simple structure allows for convenient field service and minimal maintenance requirements.

Company profile

Shanghai Zentif Valve Group Co., Ltd.
Importers and ExportersHigh Repeat Buyers ChoiceIn-stock CapacityFast Delivery
CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Designs CertifiedExport Year: N/A CertifiedNearest Port: Shanghai PortAverage Response Time: ≤10.12h

About Our Factory & Business Background

AddressNo. 111 Huangjia Garden Road, Jiangqiao Town, Jiading District, Shanghai, China
Plant Area12819.22 square meters
Number of Employees81
Registered Capital55,484,089 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: within 15 workdays Off Season Lead Time: within 15 workdays
Minimum Order Quantity500 PICS
Supply Chain Partners12

Our Production Capability & Technical Expertise

Main Productsangle valve
Production Lines5
Production MachinesCNC Lathe, Lathe, Shot Blasting Facility, Vertical Lathe
QA/QC inspectors3 people
Inspection Type for Finished Products100% inspection(Visual inspection & Function inspection)
Inspection Method for Finished ProductsHave instructions and uniformly followed
R&D Engineers2 people
Traceability of Raw MaterialsYes

Our Industry Experience & Global Business Record

Year of Establishment2001-03-20
Main MarketsDomestic
Repeat Buyers Choice50%~80%
Number of Foreign Trading Staff4
Overseas Agent/BranchNo
New Products Launched in Last yearNo

Our Certifications, Standards & Industry Recognition

Cooperated with Fortune 500No

Product Q&A

Q:How to select the right air release valve for water pipeline systems?
A:
For municipal water supply, industrial pipelines, and pump stations, Combination Air Release Valves (Double Orifice) are highly recommended. Consider the pipeline diameter, operating pressure (PN10/PN16), and air accumulation conditions. High-capacity automatic air vent valves are ideal for long pipelines and high points to ensure efficient air removal and system stability.
Q:Why are air release valves important in water supply and fire protection systems?
A:
Air release valves are essential for removing trapped air pockets that can reduce flow efficiency and cause water hammer. In fire protection and municipal water systems, they help maintain full pipeline capacity, prevent pressure surges, and protect pumps and pipelines from damage, ensuring reliable system performance and safety.
Q:Are air release valves suitable for high-frequency operation and variable flow conditions?
A:
Yes. Modern automatic air release valves feature sensitive float mechanisms and robust sealing designs that respond quickly to changing flow conditions. High-quality combination air valves can handle frequent start-stop cycles and varying pressures while maintaining excellent sealing performance and long service life.
Q:How do air release valves improve efficiency in HVAC and chilled water systems?
A:
Air release valves effectively eliminate accumulated air in chilled and hot water circulation systems, preventing air locks that reduce heat transfer efficiency. By maintaining optimal flow and eliminating air pockets, they help improve system performance, reduce energy consumption, and protect equipment from corrosion and cavitation.

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