Can I add accessories like solenoid valves, limit switches, or positioners to this valve?

Yes. The ISO5211 top-mount design supports direct installation of standard accessories, including 24VDC solenoid valves, limit switches, air filter regulators, and positioners for control valve applications.

What tests are performed on this valve before shipping, and do you provide test certificates?

Every valve undergoes hydrostatic shell and seat tests (per GB/T 13927), air leak testing, and actuator function testing. We provide factory test reports, material certificates, and CE/ISO compliance documents with each order.

3-Inch Stainless Steel Pneumatic 2 Way Valve Flange Coinnection for HVAC Systems

Name: 3-Inch Stainless Steel Pneumatic 2 Way Valve Flange Coinnection for HVAC Systems
Brand: Zhejiang Kinko-Fluid Equipment Co., Ltd.
SKU: 1993012121

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

US$2.04

1-9 Pieces

US$2.01

10-99 Pieces

US$1.98

100+ Pieces

Product specifications

material

pressure

size

Product profile

Customization

Available

Media

Gas Oil Air

Material

Stainless Steel

Model NO.

KK, QXMA, HQ, Q, H, AOX

Connection Form

Flange

Driving Mode

Pneumatic

Nominal Pressure

JIS10-20K

Channel

Straight Through Type

Structure

Fixed Ball Valve

Type

Floating Ball Valve

Function

Blow-Down Valve, Relief Valve, Atmospheric Valve, Bypass-Valve

Temperature

Normal Temperature

Standard

IP68

Application

Industrial Usage, Water Industrial Usage, Household Usage

Selling Units

Single Item

Port Size

DN50

Connection

Male Thread

Single Package Size

8.6X17.2X13.7.Cm

Customized Support

OEM

Feature

2PC Ball Valve with Steel Handle Lock

Working

-20c~+180c Te

Working Pressure

1000wog

Productname

Q21f

Medium

Water,Gas,Oil,Acid,Alkali

Single Gross Weight

1.250kg

Warranty

1year

Seal Material

PTFE

Power

Manual

Body Material

CF8/304

Transport Package

Wooden Case

Specification

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

Trademark

kinko

Origin

China

Key features

OEM Customization: Supports OEM customization for tailored solutions.

High Strength Construction: Features high strength design with stainless steel body.

Wide Port Size Range: Available in DN10 to DN100 port sizes.

ISO 9001 Certified: Manufactured under strict ISO9001 international quality standards.

FDA/GMP Compliant: Quality meets FDA and GMP requirements for food and beverage.

Multi-Standard Compliance: Complies with ISO, DIN, 3A, IDF, SYS, JIS, and GB standards.

Fast Response Actuation: Pneumatic actuation ensures faster response and explosion-proof performance.

Manual Override Function: Equipped with manual handle or handwheel for emergency operation.

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: ≤3.41h 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:What standards does this valve comply with, and is it interchangeable with common piping systems?

Our pneumatic ball valve is manufactured to meet GB/T 12237, GB/T 12221, and ISO 5211 standards. It features standard female NPT/BSP threaded connections and an ISO5211 direct-mount pad, ensuring plug-and-play compatibility with most industrial piping systems and actuator accessories. No pipe modifications are required for standard installations.

Q:What is the leakage rate of this valve, and can it meet bubble-tight shutoff requirements?

The valve is tested to ISO 5208 Leakage Rate VI (bubble-tight). With enhanced PTFE seats and precision-machined ball surfaces, it achieves zero visible leakage under rated pressure, meeting strict shutoff requirements for safety-critical applications.

Q:How long does the pneumatic actuator last, and what is its cycle life rating?

The hard anodized aluminum actuator is rated for 1,000,000 switching cycles under normal operating conditions. That is 50% longer than the industry average, thanks to low-friction seals and a corrosion-resistant coating that minimizes wear.

Q:Can this valve handle corrosive media like chemicals or saltwater, and what materials are used?

Yes. The valve body is available in SS304 or SS316 stainless steel, offering excellent resistance to corrosion from chemicals, saltwater, and wastewater. Combined with PTFE seals, it is suitable for most corrosive industrial fluids.

Q:Does the valve require maintenance, and are spare parts (like seals or actuators) readily available?

The valve is designed for low maintenance. Seals can be easily replaced if needed, and we keep spare parts (seal kits, actuators, solenoids) in stock for quick delivery. We also provide full service and technical support.