What is the nominal diameter range for these valves?

The nominal diameter ranges vary by model, typically from DN6 to DN300. For example, Stop Valves range from DN15 to DN300, while Solenoid Valves range from DN3 to DN50.

What are the payment terms and lead times?

Payment terms include LC, T/T, and Western Union. The average lead time is within 15 workdays for both peak and off-peak seasons.

Freon Ammonia Refrigeration Valve Check Valve

Name: Freon Ammonia Refrigeration Valve Check Valve
Brand: Shandong Dofun Refrigeration Technology Co., Ltd.
SKU: 2059653532

Shandong, ChinaShandong Dofun Refrigeration Technology Co., Ltd.

US$10.00-600.00

1 Piece

Product profile

Customization

Available

Nominal Pressure

4MPa, 6.3MPa

Applicable Medium

R12, R22, R502, R134A, R404A, R507, R717 and Other

Model NO.

CVD

Applicable Temperature

-50 ~ +150

Structure Form

Angle & Straight

Valve Rod Material

304 Stainless Steel

Applicable System

Nh3, Freon and CO2

Color of Valve Body

Grey or Red

Certificate

CE, SGS, TUV, Bsi

Transport Package

Carton Box or Plywood Box Packaging

Specification

DN15-DN150

Trademark

DOFUN

Origin

China

HS Code

8481804090

Production Capacity

150000 Sets

Key features

Multi-Medium Compatibility: Suitable for R12, R22, R502, R134A, R404A, R507, R717, NH3, and CO2 systems.

High Pressure Rating: Nominal pressure options of 4.0MPa and 6.3MPa for robust industrial performance.

Premium Material Construction: Valve rods made of 304 Stainless Steel for durability and corrosion resistance.

Comprehensive Product Range: Includes stop valves, check valves, regulating valves, filters, and solenoid valves.

Certified Quality Assurance: Products certified by CE, SGS, TUV, and BSI for international safety standards.

Flexible Valve Structures: Available in Angle and Straight structure forms to fit various piping layouts.

Custom Color Options: Valve body color can be customized to Grey or Red based on client requirements.

Company profile

Shandong Dofun Refrigeration Technology Co., Ltd.

Shandong, China

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2019-09-02 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤8.25h CertifiedTerms of Payment: LC, T/T, Western Union

AI-Powered supplier vetting

SummaryShandong Dofun Refrigeration Technology Co., Ltd. is identified as a Chinese manufacturer of refrigeration valves and related industrial equipment, established in 2012 with 85 employees and a 13,000 m² manufacturing area. The supplier reports six production lines, annual refrigeration-valve output of 200,000 sets, quality-control staffing of 11–20 employees, and delivery within 15 working days in both peak and off-peak seasons. It serves domestic and multiple overseas markets and accepts several trade and payment terms. The materials indicate product-development activity and technical capabilities, but provide no verified management-system certifications, after-sales service details, customization evidence, or named customer cases. Company information contains inconsistencies, including different registered-capital and facility descriptions, which should be verified before qualification.

Supplier typeThe supplier is explicitly identified as a manufacturer/factory and operates in industrial equipment and components, with refrigeration valves and related valve products as its stated focus. Its legal and company names vary slightly across the records, but the business type and product orientation are consistent.

CertificationsThe supplier-management-system certification field is explicitly recorded as "NIL." No certification such as ISO is provided in the available information, so certification compliance cannot be established.

R&D capabilityThe supplier states that it pursues continuous product innovation, has six R&D engineers, and operates multiple advanced valve production lines and experimental testing facilities. These statements support some innovation resources, although no patents, formal R&D projects, or measurable innovation outcomes are provided.

Production capacityThe supplier reports a 13,000 m² plant, six production lines, 85 employees, quality-control staffing of 11–20 people, and annual refrigeration-valve output of 200,000 sets. It also states that orders can be fulfilled within 15 working days during both peak and off-peak periods, providing explicit evidence of established production capacity.

Product Q&A

Q:What refrigerants and media are compatible with these valves?

The valves are applicable for R12, R22, R502, R134A, R404A, R507, R717, NH3 (Ammonia), Freon, and CO2 systems.

Q:What nominal pressure ratings are available?

The standard nominal pressure ratings are 4.0MPa and 6.3MPa. Some specific valves like the Neck Flange Check Valve support 2.5MPa, and Inlet Pressure Regulating Valves support 2.8MPa.

Q:What materials are used for the valve components?

The valve rod material is specified as 304 Stainless Steel. The company produces valves of various materials suitable for refrigeration, petrifaction, oil refining, and chemical engineering.

Q:What types of valves are included in this product line?

The product line includes Stop Valves (SVD), Check Valves (CVD), Stop Check Valves (SCV), Regulating Valves (TVD), Filters (FVD), Overflow Valves (OFD), Solenoid Valves (DEVSC/DEVS), and Motor Valves (DFMV).

Q:What certifications do the products hold?

The products are certified with CE, SGS, TUV, and BSI, ensuring compliance with international quality and safety standards.