How to choose cast iron, cast steel, stainless steel?

Cast iron is for water, air, normal temperature/pressure, and low cost. Cast steel is for steam, high temperature, and medium/high pressure. Stainless steel (304/316) is for corrosive media, food, and pharmaceutical applications.

Compact Pneumatically Operated Butterfly Valve for Water Treatment Automation Systems

Name: Compact Pneumatically Operated Butterfly Valve for Water Treatment Automation Systems
Brand: Zhejiang Kinko-Fluid Equipment Co., Ltd.
SKU: 1993084511

Zhejiang, ChinaZhejiang Kinko-Fluid Equipment Co., Ltd.

US$15.00

1 Piece

Product profile

Customization

Available

Media

Oil

Driving Mode

Pneumatic

Connection Form

Wafer

Structure

Centre Sealing

Seal Form

Force Sealed

Valve Stem

Normal

Work Pressure

Low Pressure (Pn<1.6mpa)

Working Temperature

Normal Temperature (-40°C<T<120°C)

Material of Seal Surface

Metal Hard Sealed

Valve Body

Sheet Metal

Application

Industrial Usage, Water Industrial Usage, Household Usage

Control Pressure

3-8bar

Characteristic

Center Line

Voltage

220VAC

Leakage

Zero

Operating

Pneumatic

Transport Package

Plywood Case

Specification

DN50-1000

Trademark

KINKO

Origin

China

Production Capacity

400000pieces Per Year

Key features

Pneumatic Actuation: Rack and pinion design with motorized gear teeth for smooth operation and longer life.

Zero Leakage Seal: Metal hard sealed force sealed design ensuring zero leakage for reliable performance.

Corrosion Resistant: Anodized rigid body with PTFE coated end covers for enhanced durability.

Modular Design: Same body and end caps for dual-acting and spring return versions for flexibility.

Safety Springs: Prevents accidental ejaculation during maintenance for enhanced operator safety.

ISO Mounting Pattern: Standard ISO mounting pattern with adjustable stop for open and closed positions.

High Cycle Life: Low-friction bearings on all moving and sliding surfaces ensure high cycle life.

1 Year Warranty: Comprehensive 1-year warranty period with online and video technical support.

Company profile

Importers and ExportersSelf-brandedManagement CertificationR&D Capabilities

Zhejiang Kinko-Fluid Equipment Co., Ltd.

Zhejiang, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2016-03-01 CertifiedNearest Port: Ningbo Port, Shanghai PortAverage Response Time: ≤5.46h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryThe supplier is identified as a trading company with a combined company type and a business scope covering valves, industrial automation devices, hardware, metal products, machinery, pumps, vacuum equipment, and power-related products. It reports OEM service for popular brands, ODM and multiple customization options, and describes access to precision CNC machining and comprehensive testing equipment; however, other evidence indicates no valid manufacturing-capacity contract with affiliated subcontractors. The supplier has ISO9001:2015, ISO45001:2018, and ISO14001 certifications. Service procedures exist for capability assessment, corrective and preventive actions, and customer complaints, but no records were provided. It has no in-stock capacity, overseas warehouse, or overseas showroom, while overseas service offerings include debugging. Financial records are identified for 2023–2025, but the provided slices do not establish their adequacy. Innovation evidence is limited because no new products were...

CertificationsThe supplier reports ISO9001:2015, ISO45001:2018, and ISO14001 certifications, providing explicit evidence of quality, occupational health and safety, and environmental management certification. The slices do not provide certificate validity dates or issuing-body verification details.

R&D capabilityThe supplier reports ODM capability and multiple design-service options, including customization from samples, designs, full customization, minor customization, and flexible customization. However, it reports no new products in the past year and no available SDK, which are explicit limitations for recent product innovation and software-development support.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, together with ODM services. These statements directly support a broad customization offering, although the slices do not provide project examples, technical specifications, or delivery-performance evidence.

Client casesThe supplier states that it provides OEM services for popular brands, which is evidence of experience serving recognized-brand customers. No customer names, product examples, order records, or independently verifiable case details are provided, so the depth and verifiability of these cases remain limited.

Product Q&A

Q:How to choose the size?

Size is determined by nominal diameter (DN). Common sizes include DN25, DN40, DN50, DN65, DN80, DN100, DN125, DN150, DN200, DN250, DN300, DN350, DN400 and larger.

Q:What media is it suitable for?

It is suitable for water, air, oil, weak acid, and alkali. Strong corrosive media requires lined or stainless steel types, while high-temperature media needs metal-sealed butterfly valves.

Q:How to judge the quality of a butterfly valve?

Check for heavier weight indicating better material, smooth casting without pores or cracks, smooth operation without jamming, good sealing performance, and a complete nameplate with identification.

Q:Are there national and industrial standards?

Yes, the main Chinese standard is GB/T 12238. Regular products have a nameplate, certificate, and marked pressure, diameter, and material.

Q:Is installation difficult?

No, installation is simple. Wafer type is clamped between two flanges; flange type is directly bolted to pipes. Just follow the flow direction arrow.