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

Cast iron is for water/air at normal temps; cast steel for steam/high temps/pressure; stainless steel (304/316) for corrosive media, food, or pharmaceutical applications.

DN300 Cast Steel Double Eccentric Butterfly Valve for Steam Networks

Name: DN300 Cast Steel Double Eccentric Butterfly Valve for Steam Networks
Brand: Zhejiang Kinko-Fluid Equipment Co., Ltd.
SKU: 2305037145

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

US$88.50

1-499 Pieces

US$85.00

500-999 Pieces

US$80.00

1,000+ Pieces

Product specifications

pressure

size

Material

Product profile

Customization

Available

Media

Water,Air, Oil,Gas,Steam Chemicals

Driving Mode

Electric

Connection Form

Clamp

Structure

Three-Eccentric Sealing

Seal Form

Force Sealed

Valve Stem

Normal

Work Pressure

Mid-Pressure (2.5mpa< Pn <6.4mpa)

Working Temperature

-20c~+160c

Material of Seal Surface

Soft Sealed

Valve Body

Sheet Metal

Standard

IP68

Application

Industrial Usage, Water Industrial Usage, Household Usage

Port Size

DN50~100

Single Package Size

8.6X17.2X13.7cm

Leakage Level

Zero Leakcage

Working Pressure

0-1.0MPa

Temperature of

Medium Temperature,Normal Media Temperature

Output Torque

100nm

Single Gross Weight

0.850kg

Productname

D941X-10

Seal Material

Rubber

Selling Units

Single Item

Nominal Diameter

DN50~100

Working

Temperature -20c~+160c

Petroleum,

Application Chemical,Textile,Water Treatment

Product Name

D941X-10

Body Material

Castiron

Transport Package

Specification

#1; #2; #3; #4; #5

Trademark

kinko

Origin

China

Key features

Pneumatic Actuated for fast, automated control.

PTFE /EPDM Lined for strong corrosion resistance.

Wafer Type for compact, space-saving installatio

Manual Handwheel for backup emergency operation.

CE/ISO Certified for reliable quality.

Bi-directional Sealing for leak-tight shutoff.

Low Torque Design for easy actuation.

Kinko Quality with proven industrial performance.

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: ≤4.99h 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 works for water, air, oil, and weak acid/alkali. Strong corrosive media requires lined or stainless steel types, while high-temperature media needs metal-sealed valves.

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

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

Q:Are there national and industrial standards?

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

Q:Is installation difficult?

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