What is the working principle of CARX compound air release valve?

It adopts double-orifice float structure. When filling pipeline, large orifice discharges massive air fast. In normal running, small orifice vents accumulated micro air. When pipeline drains, it sucks air in to avoid vacuum damage.

What material is the valve body?

Ductile iron QT450, blue epoxy coating; float: stainless steel; seal: EPDM.

What pressure grade for this CARX-16Q?

PN16 (16 bar), suitable for municipal clean water pipeline.

Cast Iron Double Ball Orifice Flange Automatic Air Release Valve Air Vent Exhaust Valve

Name: Cast Iron Double Ball Orifice Flange Automatic Air Release Valve Air Vent Exhaust Valve
Brand: Guangdong Liansu Technology Industrial Co., Ltd.
SKU: 2321887755

Guangdong, ChinaGuangdong Liansu Technology Industrial Co., Ltd.

US$112.60

10-99 Pieces

US$112.20

100-999 Pieces

US$112.00

1,000+ Pieces

Product specifications

DN Size

Sample price:US$112.60/piece.Request sample

Product profile

Customization

Available

Type

Flange Exhaust Air Valves

Material

Ductile Iron Qt450

Model NO.

CARX-16Q-100

Certification

ISO9001

Usage

Regulation

Color

Blue

Surface Finish

Anti-Corrosion Epoxy Coating

Function

Air Exhaust

Sample

Transport Package

Carton Box

Specification

DN80, DN100, PN16

Trademark

Lesso

Origin

China

HS Code

8481809000

Production Capacity

50000PCS/Year

Key features

Ductile iron QT450 body, epoxy anti-corrosion coating, long service life

Double orifice compound design: exhaust large volume air + release micro bubbles automatically

Auto air intake, prevents negative pressure and pipeline collapse

Flange connection, easy installation & maintenance

No power required, fully automatic float operation

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceExperienced TeamFast Delivery

Guangdong Liansu Technology Industrial Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 27 Years CertifiedNearest Port: Shenzhen Port, Guangzhou PortAverage Response Time: ≤1.30h

AI-Powered supplier vetting

SummaryThe supplier is identified as a combined company with manufacturing, export, service, quality-control, and R&D information provided. It reports extensive customization, ODM and OEM capability, new-product activity within the past year, and 27 years of exporting experience. Production-related evidence includes fully automatic extrusion and injection-molding equipment, 66 quality inspectors, documented finished-product inspection procedures, and a one-month average lead time in both peak and off-season periods. However, the supplier reports no quality assurance capability, no in-stock service, no overseas warehouse, no overseas agents or branches, no overseas showroom, and no offline trade-show participation. Its financial credibility cannot be assessed from the provided records because the financial entries only identify reporting years and contain no usable financial results. Customer evidence is limited to one named buyer and one recorded trade transaction.

Supplier typeThe supplier is classified as a combined company and provides information covering manufacturing, export trade, service, quality control, R&D, and sustainable development capabilities. This supports classification as a manufacturing-oriented combined supplier rather than an offshore company.

CertificationsThe supplier explicitly reports no quality assurance capability. No certification names or valid certification records are provided, so certification holding cannot be positively established; the stated absence of quality assurance is a specific deficiency.

R&D capabilityThe supplier reports that it had new products during the past year and provides ODM services, indicating active product-development capability. It also reports no available SDK, which limits evidence of software or developer-integration capability but does not negate its manufacturing R&D capability.

Production capacityProduction evidence includes fully automatic extrusion and injection-molding equipment, raw-material processing machinery, 66 quality inspectors, documented finished-product inspection procedures, and a one-month average lead time in both peak and off-season periods. Nevertheless, the supplier reports no valid manufacturing-capacity contract with affiliated subcontractors, so subcontracting governance remains a weakness.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization. These capabilities are stated consistently across the R&D and design-service records, providing direct evidence of broad customization coverage.