What is the main application of this valve?

This valve is specially developed for pipelines transporting corrosive chemical media, widely used in chemical plants, pesticide production, and environmental protection engineering.

Gas Explosion-Proof Wafer Double Disc Check Valve for Natural Gas Pipe with Flameproof Shell Cert

Name: Gas Explosion-Proof Wafer Double Disc Check Valve for Natural Gas Pipe with Flameproof Shell Cert
Brand: Zhejiang Lierduo Valve Co., Ltd.
SKU: 2311584095

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 Performance: Spring-assisted double-disc structure ensures ultra-tight sealing and fast reverse flow cutoff.

Compact Wafer Design: Lightweight structure with convenient installation, maintenance, and high mechanical rigidity.

Wide Application Range: Ideal for chemical plants, wastewater treatment, and industrial pipelines to prevent fluid backflow.

Customizable Standards: Manufactured to ANSI, ASME, JIS, DIN, and GOST standards based on specific customer requirements.

High-Quality Manufacturing: Produced by a national high-tech enterprise with advanced CNC equipment and strict QA/QC.

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.

Product Q&A

Q:What information is needed to recommend suitable products?

Please provide detailed information such as size, material, pressure, and model to help us recommend the most suitable products for your needs.

Q:What is the Minimum Order Quantity (MOQ)?

For small sizes like 1'-4' (DN25-DN100), the MOQ is 20 pieces per size. Generally, the MOQ depends on your specific order requirements.

Q:What is the warranty period for the valve?

The warranty period is 12 months after leaving our factory. We provide repair or replacement services for any quality problems.

Q:What payment methods are accepted?

We accept T/T, Western Union, and PayPal. The payment term is 30% prepayment and 70% balance paid before shipping or against a copy of the Bill of Lading.

Q:Can you manufacture valves according to different standards?

Yes, we can manufacture valves according to GOST, JIS, and other standards based on different pressure, temperature, and size requirements.