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Ammonia System Freon System Cold Storage 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
Wide Pressure Range: Supports nominal pressures of 4.0MPa and 6.3MPa for diverse system needs.
Multiple Medium Compatibility: Compatible with R12, R22, R502, R134a, R404a, R507, R717, CO2, and Ammonia.
Diverse Valve Types: Offers Stop, Check, Regulating, Solenoid, and Motor valves in various configurations.
Premium Material Construction: Valve rods are manufactured from durable 304 Stainless Steel.
Comprehensive Certifications: Products certified by CE, ISO, SGS, TUV, and BSI standards.
Customization Options: ODM and OEM services available for tailored valve solutions.
Fast Production Lead Time: Average lead time within 15 working days for both peak and off-peak seasons.
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: ≤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 pressure ratings are available?
A:
The valves support nominal pressures of 4.0MPa and 6.3MPa.
Q:Which refrigerants are compatible?
A:
Compatible media include R12, R22, R502, R134a, R404a, R507, R717, CO2, and Ammonia.
Q:Do you offer OEM and ODM services?
A:
Yes, we provide both OEM and ODM services for customized requirements.
Q:What is the typical lead time for orders?
A:
The average lead time is within 15 working days regardless of the season.
Q:What certifications do your products hold?
A:
Our products are certified by CE, ISO, SGS, TUV, and BSI.
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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