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Use for Ammonia System Freon System Cold Storage Refrigerant Check 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.
CVDApplicable Temperature
-50 ~ +150Structure Form
Angle & StraightValve Rod Material
304 Stainless SteelApplicable System
Nh3, Freon and CO2Color of Valve Body
Grey or RedCertificate
CE, SGS, TUV, BsiTransport Package
Carton Box or Plywood Box PackagingSpecification
DN15-DN150Trademark
DOFUNOrigin
ChinaHS Code
8481804090Production Capacity
150000 SetsKey features
Multi-Medium Compatibility: Suitable for Ammonia, Freon, CO2, and various refrigerants like R12/R22.
High Pressure Rating: Supports nominal pressures up to 6.3MPa for demanding industrial systems.
Premium Material Build: Valve rods made of 304 Stainless Steel for durability and corrosion resistance.
Comprehensive Product Range: Offers Stop, Check, Regulating, Filter, and Solenoid valves in various sizes.
Global Certifications: Products certified by CE, SGS, TUV, and BSI for international standards.
OEM/ODM Support: Custom manufacturing services available for specific client requirements.
Versatile Structure Options: Available in Angle and Straight structure forms to fit different piping layouts.
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: ≤7.22h 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 are compatible with these valves?
A:
The valves are applicable for Ammonia (R717), Freon systems (R12, R22, R502, R134A, R404A, R507), and CO2 systems.
Q:What materials are used for the valve components?
A:
The valve rod material is 304 Stainless Steel. The valve body color options are Grey or Red.
Q:What certifications do the products hold?
A:
The products have obtained CE, SGS, TUV, and BSI certifications.
Q:What is the nominal pressure rating?
A:
The nominal pressure options are 4.0MPa and 6.3MPa for most valves, with some specific models like NRVD rated at 2.5MPa.
Q:Does the manufacturer offer OEM or ODM services?
A:
Yes, the company provides both OEM and ODM services to meet custom requirements.
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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