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Cold Storage Industrial Refrigeration Differential Pressure Regulating Valve
US$10.00-3,000.00
1 Piece
Product profile
Customization
AvailableNominal Pressure
4MPa, 6.3MPaApplicable Medium
R12, R22, R502, R134A, R404A, R507, R717 and OtherModel NO.
DPAVApplicable Temperature
-50 ~ +150Structure Form
Angle & StraightValve Rod Material
304 Stainless SteelApplicable System
Nh3, Freon and CO2Certificate
CE, ISO, SGS, TUV, BsiColor of Valve Body
Grey and RedTransport Package
Carton Box or Plywood Box PackagingSpecification
DN25-DN125Trademark
DOFUNOrigin
ChinaHS Code
8481804090Production Capacity
150000 SetsKey features
Multi-Medium Compatibility: Suitable for R12, R22, R502, R134A, R404A, R507, R717, Ammonia, and CO2 systems.
High Pressure Rating: Supports nominal pressures up to 6.3MPa for robust industrial performance.
Premium Material Build: Valve rods made of 304 Stainless Steel for durability and corrosion resistance.
Comprehensive Certifications: Products certified with CE, ISO, SGS, TUV, and Bsi standards.
Flexible Structure Options: Available in Angle and Straight structure forms to fit various piping layouts.
Custom Color Options: Valve body available in Grey and Red colors to match system requirements.
Diverse Valve Types: Includes Stop, Check, Regulating, Filter, and Solenoid valves for complete control.
Company profile

CertifiedBusiness Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service AvailableExport Year: 2019-09-02 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤7.03h 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:Which refrigerants and media are compatible?
A:
They are applicable for R12, R22, R502, R134A, R404A, R507, R717, Ammonia, Freon, and CO2 systems.
Q:What is the maximum nominal pressure?
A:
The nominal pressure ratings are 4.0MPa and 6.3MPa depending on the specific valve model.
Q:What material is used for the valve rod?
A:
The valve rod is made of 304 Stainless Steel to ensure strength and corrosion resistance.
Q:Are the valves available in different colors?
A:
Yes, the valve body is available in Grey and Red colors.
Q:What certifications do the products have?
A:
The products hold CE, ISO, SGS, TUV, and Bsi certifications.
Send Inquiry
*To:
Shandong Dofun Refrigeration Technology Co., Ltd.
Shandong Dofun Refrigeration Technology Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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