How can I ensure correct valve selection? What parameters do I need to provide

To ensure accurate selection, please provide the following key parameters: Pressure rating (PN / Class) Nominal diameter (DN / NPS) Operating temperature range Connection type (flanged, wafer, threaded, welded, etc.) Medium characteristics (corrosive? contains particulates? toxic or flammable?)

Pneumatically Operated Gate Valves DN300 Cast Iron for HVAC

Name: Pneumatically Operated Gate Valves DN300 Cast Iron for HVAC
Brand: Zhejiang Kinko-Fluid Equipment Co., Ltd.
SKU: 2314605605

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

US$25.00

1 Piece

Sample price:US$25.00/piece.Request sample

Product profile

Customization

Available

Media

Water, Sewage, Air, Gas, Neutral Fluids

Type

Floating,Fixed,Flexible,Tee, V Type Ball Valve

Material

Carbon Steel,Stainless Steel,Brass,Other

Connection Form

Clamp, Flange, Wafer, Welding,etc

Pressure

Ordinary Temperature

Actuator

Pneumatic Actuator/ Electrical Actuator/ Manual

Seal Surface

Wedge Gate Valve

Thread Position of Valve Rod

Customized

Usage

Regulation, Safety, Emptying, Drain, Temperature Control, Flow Control

Standard

GB, DIN, JIS, ANSI

Application

Industrial Usage, Water Industrial Usage, Household Usage

Customize Support

OEM,ODM

Body Material

Cast Iron, Cast Steel, Stainless Steel

Operation

Pneumatic Actuator/ Electrical Actuator/ Manual

Valve Type

Ball Valve, Butterfly Valve, Angle Seat Valve, etc

Transport Package

Plywood Case / Carton with Pallet

Specification

DN15~DN800

Trademark

KINKO

Origin

Zhejiang, China

Production Capacity

500000PCS/Year

Key features

Compact and Lightweight Design: Rack and pinion design ensures compact and lightweight structure for easy installation.

High Cycle Life: Features low-friction bearings on all moving surfaces for extended operational life.

Corrosion Resistant: Anodized rigid body and PTFE coated end covers provide superior corrosion resistance.

Safety Spring Protection: Safety springs prevent accidental movement risks during maintenance operations.

Modular Design: Uses same body and end caps for both dual-acting and spring return versions.

ISO Mounting Pattern: Standard ISO mounting pattern ensures compatibility with various accessories.

Adjustable Stop Positions: Adjustable stops allow precise control for both open and closed positions.

Smooth Operation: Motorized gear teeth provide longer life and smoother 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: ≤3.49h 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 causes leakage in gate valves and how can it be prevented?

Gate valve leakage falls into two main categories: internal leakage (failure to seal tightly) and external leakage (leakage from the valve body or packing gland). Internal leakage is usually caused by worn sealing surfaces, deformed sealing gaskets, or debris trapped between the sealing faces. External leakage is often due to aged packing or loose mounting bolts.

Q:Why does a gate valve become stiff or stuck during operation?

Common causes include: Stem rust due to lack of lubrication Sediment buildup from debris in the medium Weld slag or foreign matter left in the pipeline during installation

Q:Can a gate valve be used for flow regulation?

No. Gate valves are designed strictly for on/off service fully open or fully closed. Using a gate valve in a partially open position for throttling will cause severe erosion and wear of the sealing surfaces, leading to leakage and premature failure. For flow regulation, please consider globe valves or control valves

Q:What are the operational precautions for gate valves?

Avoid excessive force: Over-tightening the handwheel can damage the stem or gate. High-temperature applications: After closing a valve under high-temperature conditions, thermal contraction may cause components to seize as they cool. It is advisable to slightly loosen the handwheel after cooling.

Q:What is the difference between metal-seated and soft-seated gate valves

Metal-seated gate valve: Features metal-to-metal sealing surfaces, resistant to high temperature and high pressure. Suitable for demanding services such as steam, oil, and gas.