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Use for Ammonia System Freon System Cold Storage Ammonia Refrigeration Stop 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.
SCVApplicable 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
Multiple Valve Types: Includes stop, check, regulating, filter, overflow, and solenoid valves for complete systems.
High Pressure Resistance: Nominal pressures up to 6.3MPa ensure safety and reliability in ammonia and freon systems.
Durable Material: Valve rods made of 304 Stainless Steel for corrosion resistance and long service life.
CE Certified Quality: Products hold CE, SGS, TUV, and Bsi certificates ensuring international safety standards.
Customizable Options: Color of valve body can be customized to Grey or Red based on client requirements.
Versatile Applications: Suitable for NH3, Freon, CO2 systems in refrigeration, chemical, and nuclear power sectors.
Fast Lead Time: Average lead time within 15 workdays for both peak and off-season orders.
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 refrigerants are compatible with these valves?
A:
The valves are applicable for R12, R22, R502, R134A, R404A, R507, R717, NH3, Freon, and CO2 systems.
Q:What certifications do the products have?
A:
The products are certified with CE, SGS, TUV, and Bsi standards.
Q:Can the valve body color be customized?
A:
Yes, the color of the valve body can be customized to Grey or Red.
Q:What is the nominal pressure rating?
A:
The nominal pressure is available in 4.0MPa and 6.3MPa options depending on the valve model.
Q:What is the lead time for orders?
A:
The average lead time is within 15 workdays for both peak season and off-season orders.
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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