What payment terms do you accept?

We accept LC, T/T, and Western Union as payment terms.

What is the material of the valve rod?

The valve rod material is 304 Stainless Steel.

Cold Room Refrigeration Welding Neck Flange Check Valve

Name: Cold Room Refrigeration Welding Neck Flange Check Valve
Brand: Shandong Dofun Refrigeration Technology Co., Ltd.
SKU: 787279352

Shandong, ChinaShandong Dofun Refrigeration Technology Co., Ltd.

US$10.00-3,000.00

1 Piece

Product profile

Customization

Available

Temperature

Low Temperature

Certification

GS, RoHS, CE, ISO9001

Model NO.

NRVD

Media

Gas, Oil, Water, Acid

Standard

Connection Mode

Butt Welding

Power

Auto

Material

Alloy

Type

Self-Operated

Nominal Pressure

4MPa, 6.3MPa

Applicable Medium

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

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

DN25-DN150

Trademark

DOFUN

Origin

China

HS Code

8481804090

Production Capacity

150000 Sets

Key features

Multiple Pressure Ratings: Available in 2.5MPa, 2.8MPa, 4.0MPa, and 6.3MPa nominal pressure options.

Diverse Valve Types: Includes stop, check, regulating, solenoid, and motor valves for complete systems.

Broad Media Compatibility: Suitable for Ammonia, Freon, CO2, R12, R22, R502, R134a, and other refrigerants.

Premium Material Construction: Valve rods made of 304 Stainless Steel with Alloy body options.

Comprehensive Certifications: Certified by CE, SGS, TUV, BSI, RoHS, ISO9001, and GS standards.

Custom Color Options: Valve body available in Grey or Red to match specific requirements.

OEM and ODM Services: Full customization support with 6 R&D engineers and advanced production lines.

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: ≤9.71h 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.