What is the maximum nominal pressure?

The nominal pressure can be customized up to 6.3MPa.

What is the lead time for orders?

The average lead time is within 15 workdays for both peak and off-season.

Cold Room Refrigeration Compressor Neck Flange Check Valve

Name: Cold Room Refrigeration Compressor Neck Flange Check Valve
Brand: Shandong Dofun Refrigeration Technology Co., Ltd.
SKU: 787279252

Shandong, ChinaShandong Dofun Refrigeration Technology Co., Ltd.

US$10.00-3,000.00

1 Piece

Product profile

Customization

Available

Media

Gas

Temperature

Low Temperature

Model NO.

NRVD

Material

Cast Steel

Connection Form

Flange

Structure

Butt Clamp

Pressure

High Pressure

Function

Nrvr Silence

Flow Direction

Reversing

Standard

DIN

Application

Industrial Usage, Water Industrial Usage, Household Usage

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

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

High Pressure Rating: Nominal pressures up to 6.3MPa ensure safety and reliability in high-pressure systems.

Durable Cast Steel Body: Constructed from high-quality cast steel for long-lasting performance and corrosion resistance.

Certified Quality: Products hold CE, SGS, TUV, and BSI certifications for international standards compliance.

Customizable Options: Offers customized nominal pressure, structure form, and valve body colors (Grey or Red).

Versatile Applications: Ideal for industrial, water, and household refrigeration systems including ammonia and CO2.

Professional Manufacturer: Shandong DoFun has over 10 years of experience with advanced production lines and R&D.

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: ≤7.12h 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.