Spring Return Butterfly Valve for Safety System with Fail-Safe Function

Name: Spring Return Butterfly Valve for Safety System with Fail-Safe Function
Brand: Zhejiang Lierduo Valve Co., Ltd.
SKU: 2321371345

Zhejiang, ChinaZhejiang Lierduo Valve Co., Ltd.

US$10.00-100.00

1 Piece

Product profile

Customization

Available

Media

Water

Driving Mode

Worm Gear

Connection Form

Flange

Structure

Centre Sealing

Seal Form

Auto Sealed

Valve Stem

Normal

Work Pressure

Low Pressure (Pn<1.6mpa)

Working Temperature

Medium Temperature (120°C<T<450°C)

Material of Seal Surface

Soft Sealed

Valve Body

Casting

Application

Industrial Usage, Water Industrial Usage, Household Usage

Seat

NBR/EPDM/PTFE/Silicone etc

Body

Cast Iron/Ductile Iron/Wcb/CF8m/CF8/Al-Bronze

Coating

Fbe Epoxy Coated

Disc

Ductile Iron Carbon Steel Stainless Steel

Transport Package

Bubble Bags and Wooden Box

Specification

Customized

Origin

China

Key features

Fail-Safe Spring Return: Features a precision spring-loaded mechanism for tight sealing and reliable backflow prevention.

Corrosion-Resistant Lining: Robust cast iron body with fluorine lining for harsh industrial environments and chemical compatibility.

Wide Customization Options: Customizable seat, body, coating, and disc materials including NBR, EPDM, PTFE, and various steels.

12-Month Quality Warranty: Covers 12 months after factory departure with free repair or replacement for quality issues.

Flexible Payment Terms: Accepts T/T, Western Union, PayPal, LC, D/P with 30% prepayment and 70% balance options.

ISO9001 Certified Quality: Backed by ISO9001 certification and over 20 product patents ensuring high reliability.

Fast Production Lead Time: Peak and off-peak season lead times are both within 15 working days.

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:We are interested in your products?

In order to recommend you suitable products, please provide detail information, like size, material, pressure, model.

Q:Is the requirement for MOQ?

For some small size, like 1'-4'(DN25-DN100), it request the MOQ is 20pcs for each size. Generally speaking, it depends on your order.

Q:How about the warranty?

The warranty time is 12 months after leaving our factory. We can repair or change because of the quality problems.

Q:Payment

Mainly T/T, Western Union & PayPal are applicable for us. Payment Term: 30% prepayment, 70% balance paid before shipping or against copy of BL.

Q:Can you manufacture different standards valves according to customer requirements?

Yes. We can manufacture,GOST,JIS standards for different pressure & temperature & size according to different needs. If you want to know more about our products, please contact freely. We will patiently answer your all questions.