1/2" Brass Automatic Air Vent Valve for Solar Water Heater

Name: 1/2" Brass Automatic Air Vent Valve for Solar Water Heater
Brand: Ningbo Doway M & E Co., Ltd.
SKU: 798353722

Zhejiang, ChinaNingbo Doway M & E Co., Ltd.

US$3.30

2,000 Pieces

Product specifications

DN15

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Type

Rapid Exhaust Valve

Material

Brass

Model NO.

DW212

Thread Standard

ISO228, ISO7/1

Installation

Vertical Installation

Keywords 1

Air Control Valve

Keywords 2

Automatic Bleeding Valve

Transport Package

Poly Bag, Inner Box, Carton and Pallet.

Specification

1/2"-1"

Trademark

DW or OEM

Origin

China

HS Code

8481804090

Production Capacity

170000PCS/Month

Key features

Automatically exhaust air when gas accumulates; self-close once filled with water, no manual frequent operation.

Prevents pipeline impurities from entering the internal mechanism and avoids valve jamming.

Common thread specifications in stock to match different heating and water pipeline projects.

Support custom forging logo, marking and packaging as customer requirements.

Company profile

High Repeat Buyers ChoiceR&D CapabilitiesManagement Certification3D Software Design

Ningbo Doway M & E Co., Ltd.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2015-06-08Nearest Port: Ningbo, ShanghaiAverage Response Time: ≤4.79hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryThe supplier is identified as a Ningbo-based trading company with professional technical capabilities, including 3D software design, ODM, OEM, and multiple customization options. It reports ISO9001 certification and CE and UL approvals for specified valve products. Production information indicates substantial output across valves, air vents, ferrules, and pipe fittings, supported by 6–10 quality-control staff and broad export coverage, with 90% of sales from exports. Service procedures for corrective actions and complaint handling are documented and followed. However, the supplier has no overseas showroom, agents, branches, offline trade-show participation, overseas warehouse, or in-stock service capability. No new products were reported in the past year, no SDK is available, and financial evidence is limited to stated years without performance details.

Supplier typeThe company is explicitly classified as a trading company located in Haishu District, Ningbo, while also identifying itself as a professional technical supplier with R&D capability. This indicates a trading-oriented supplier with technical and design-service functions rather than evidence of a purely manufacturing company.

CertificationsThe company description states that it passed ISO9001 certification and holds CE approval for ball valves and UL approval for bronze ball valves. These certifications and approvals are explicitly reported, although their scope is limited to the products named.

After-Sales capabilityThe supplier has clear procedures and followed records for corrective and preventive actions and customer complaint handling. However, it reports no overseas agents or branches, no overseas showroom, no overseas warehouse, and no in-stock service capability, so documented complaint processes coexist with limited overseas service infrastructure.

Production capacityReported annual output includes 1,230,000 brass valves, 250,000 bronze valves, 235,000 air vents, 250,000 gunmetal ferrules, and 1,870,000 pipe fittings, supported by 6–10 quality-control staff and access to Ningbo and Shanghai ports. Nevertheless, manufacturing-capacity reconciliation, outsourcing procedures, and contracts are all listed as unknown, preventing a complete assessment of capacity controls.

Customization capabilityThe supplier explicitly offers flexible customization, minor customization, customization from samples and designs, and full customization. It also provides ODM and OEM services, directly supporting broad product-design and customization capability.

Product Q&A

Q:Do you supply lead-free brass air vent?

Yes. Standard brass and lead-free brass versions are available. Lead-free brass meets requirements for potable water systems.

Q:How does this automatic air vent work?

When air gathers inside the pipeline, the internal float drops to open the vent hole and exhaust air. Once water fills the valve chamber, the float rises to close the outlet and stop leakage.

Q:Is there a filter inside the valve?

Yes, built-in small filter screen can block sediment and impurities, protect internal moving parts from stuck.

Q:Can I install this air vent horizontally?

It is recommended to install vertically. Horizontal installation may affect the normal operation of internal float structure.

Q:Can you offer material test certificate?

Material test report can be provided upon customer request.