What is the main application of this wafer check valve?

It is designed for pipelines transporting corrosive chemical media to prevent fluid backflow and safeguard equipment.

What materials are used for the valve body and lining?

The valve body is made of high-quality ductile cast iron, and the inner cavity is fully lined with PTFE.

Windproof External Wafer Double Disc Check Valve for High-Altitude Installation with Reinforced Lifting Lug

Name: Windproof External Wafer Double Disc Check Valve for High-Altitude Installation with Reinforced Lifting Lug
Brand: Zhejiang Lierduo Valve Co., Ltd.
SKU: 2311647955

Zhejiang, ChinaZhejiang Lierduo Valve Co., Ltd.

US$10.00-100.00

1 Piece

Product profile

Customization

Available

Media

Water

Material

Alloy

Connection Form

Flange

Driving Mode

Pneumatic

Nominal Pressure

PN1.0-32.0MPa

Channel

Straight Through Type

Structure

Floating Ball Valve

Type

Floating Ball Valve

Function

Atmospheric Valve

Temperature

Normal Temperature

Standard

ANSI, ASME, JIS, DIN

Application

Industrial Usage

Materials

Wcb+PFA

Pressure

150lbc

Color

Epoxy Paint

Diameter

DN15~350mm

Transport Package

Plywood

Specification

Customized

Origin

China

Key features

PTFE Anti-Corrosion Lining: Full inner cavity lined with PTFE for exceptional resistance to acid, alkali, and chemical corrosion.

Zero Leakage Sealing: Spring-assisted double-disc structure ensures fast cutoff and ultra-tight, zero leakage performance.

Compact Wafer Design: Lightweight structure with convenient installation and high mechanical rigidity for industrial pipelines.

Customizable Standards: Manufactures valves according to GOST, JIS, ANSI, ASME, and DIN standards based on customer needs.

Ductile Cast Iron Body: High-quality cast ductile iron body provides durability and strength for corrosive media transport.

Wide Application Scope: Ideal for chemical plants, wastewater treatment, and environmental engineering to prevent backflow.

Professional Manufacturer: National high-tech enterprise with ISO9001 certification and over 20 product patents since 2006.

Traceable Production: ERP system ensures production progress is traceable, controllable, and adjustable for quality assurance.

Company profile

Zhejiang Lierduo 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: 1 Year CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: >24h

AI-Powered supplier vetting

SummaryThe supplier demonstrates broad customization, ODM availability, 100% finished-product inspection, two production lines, and access to CNC, molding, machining, oven, press, and spraying equipment. It holds ISO9001:2015 and CE certifications and reports lead times within 15 working days in both peak and off-peak periods. However, service-management controls are incompletely documented, with procedures lacking written records in several areas. The supplier has no valid manufacturing-capacity contract with related subcontractors, no overseas warehouse or showroom, no recent new-product development, no SDK, and no OEM service for popular brands. Financial information is inconsistent across the supplied records, so financial credibility cannot be reliably assessed. Export-trade experience and total experienced staff are each reported as one, while batch quantity reconciliation and outsourcing SOPs are absent.

Supplier typeThe supplier is a manufacturing-oriented provider with two production lines, extensive machining and processing equipment, ODM availability, and export terms including FOB, CIF, and CFR. It also reports inventory capability, but lacks a valid manufacturing-capacity contract with related subcontractors and has no overseas warehouse or showroom.

CertificationsThe supplier reports an ISO9001:2015 management-system certificate and CE product compliance certification. These are explicit certifications supporting quality-management and product-compliance capability.

After-Sales capabilityThe supplier has records for service-capability assessment, an approved-supplier list, and procedures for corrective actions and complaint handling. However, the corrective-action and complaint-handling procedures have no written records, and the service-assessment procedure is not formally written, indicating incomplete service-control documentation.

R&D capabilityThe supplier offers ODM services and broad design customization, but reports no available SDK and no new products during the past year. The evidence supports design-service capability more strongly than ongoing product innovation.

Production capacityProduction capability is supported by two production lines, a broad equipment set covering CNC machining, turning, molding, boring, milling, pressing, oven processing, and spraying, inventory capability, and reported lead times within 15 working days in both peak and off-peak periods. Offsetting weaknesses include no valid manufacturing-capacity contract with related subcontractors and no continuous batch quantity reconciliation.

Customization capabilityThe supplier explicitly supports customization from samples, designs, full customization, minor customization, and flexible customization, and also provides ODM services. This is direct evidence of broad customization coverage.

Client casesThe supplier states that it does not provide OEM services for popular brands. No specific customer names, completed projects, or verifiable customer cases are provided in the supplied slices.