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Refrigeration Wafer Connecting Check Valve Nrva DN15-DN200mm
US$10.00-600.00
1 Piece
Product profile
Customization
AvailableTemperature
Low TemperatureCertification
GS, RoHS, CE, ISO9001Model NO.
NRVDMedia
Gas, Oil, Water, AcidStandard
StandardConnection Mode
Butt WeldingPower
AutoMaterial
AlloyType
Self-OperatedNominal Pressure
4MPa, 6.3MPaApplicable Medium
R12, R22, R502, R134A, R404A, R507, R717 and OtherApplicable 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
DN25-DN200Trademark
DOFUNOrigin
ChinaHS Code
8481804090Production Capacity
150000 SetsKey features
Multi-Media Compatibility: Suitable for Ammonia, Freon, CO2, Oil, Water, and various chemical acids.
Durable Material Construction: Valve rod made of 304 Stainless Steel; body available in Grey or Red.
Comprehensive Certification: Certified by CE, SGS, TUV, BSI, RoHS, and ISO9001 for quality assurance.
Customizable Options: Nominal pressure, color, and structure form can be customized to client needs.
Versatile Connection Modes: Supports butt welding connections for DN15 to DN300mm nominal diameters.
OEM and ODM Services: Professional manufacturer offering OEM and ODM services for custom solutions.
Fast Lead Time: Average lead time within 15 working days 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: ≤11.22h 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:Which media are compatible with these valves?
A:
They are suitable for Ammonia, Freon, CO2, Oil, Water, and various chemical acids.
Q:What certifications do the products have?
A:
Products are certified with CE, SGS, TUV, BSI, RoHS, and ISO9001.
Q:Can the valve color be customized?
A:
Yes, the valve body color can be customized to Grey or Red according to requirements.
Q:What is the nominal pressure rating?
A:
The standard nominal pressure is 4MPa or 6.3MPa, depending on the specific model.
Q:Do you offer OEM or ODM services?
A:
Yes, we provide both OEM and ODM services to meet specific customer needs.
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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