Powered by Made-in-China.com

Freon Refrigeration Wafer Connecting Check Valve
US$10.00-3,000.00
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-DN150Trademark
DOFUNOrigin
ChinaHS Code
8481804090Production Capacity
150000 SetsKey features
Multiple Pressure Ratings: Available in 2.5MPa, 2.8MPa, 4.0MPa, and 6.3MPa nominal pressures.
Diverse Valve Types: Includes stop, check, regulating, solenoid, and pressure control valves.
Broad Media Compatibility: Suitable for Ammonia, Freon, CO2, oil, water, and acid media.
Premium Material Construction: Features 304 Stainless Steel valve rods and alloy bodies.
Comprehensive Certifications: Certified with CE, RoHS, GS, ISO9001, SGS, TUV, and Bsi.
Customizable Colors: Valve body available in Grey or Red color options.
OEM and ODM Services: Full customization support with 6 R&D engineers available.
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: ≤15h 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 this valve?
A:
It is compatible with R12, R22, R502, R134A, R404A, R507, R717, Ammonia, Freon, and CO2.
Q:What pressure ratings are available?
A:
Nominal pressures include 2.5MPa, 2.8MPa, 4.0MPa, and 6.3MPa depending on the model.
Q:Can the valve body color be customized?
A:
Yes, the valve body is available in Grey or Red color options.
Q:Does the manufacturer offer OEM and ODM services?
A:
Yes, both OEM and ODM services are available with 6 R&D engineers.
Q:What certifications does the product hold?
A:
The product holds CE, RoHS, GS, ISO9001, 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
You may also like
DN15-DN80 Butt Welding Angle Control Valve Refrigeration Ammonia Stop Check Valve
Negotiable
1,000 USD(MOQ)
Factory Price Flow Control Refrigeration Ball Valve Straight Copper Check Valve
US$33.00-43.00
1 Piece(MOQ)
Forged Steel Butt Welding Right Angle Check Ammonia Valve for Refrigeration Device
US$20.00-500.00
5 Sets(MOQ)
Dia15-80 Butt Welding Right-Angle Refrigeration Globe Stop Check and Control Valve
Negotiable
1,000 USD(MOQ)
High-Quality Brass Ball Valve with Schrader for Refrigeration Systems
US$3.00-12.00
100 Pieces(MOQ)
High-Quality Air Conditioning Access Valve for Refrigeration Systems
US$0.69-1.29
100 Pieces(MOQ)
Self-Controlled Mechanism Hydraulic Slow-Closing Check Valve for Pump Outlet Pipelines
US$50.00-90.00
1 Piece(MOQ)
Durable Refrigeration Tube Connection Solenoid Valve for AC Units
US$3.00-12.00
100 Pieces(MOQ)
Premium Brass Copper Refrigeration Spare Parts Access Valve Kit
US$0.69-1.29
100 Pieces(MOQ)
Danfoss 067g3209 Tex55 Refrigeration Accessories Thermostatic Expansion Valve
US$18.00-21.00
1 Piece(MOQ)
Danfoss 068z3518 Ts2 Refrigeration Accessories Thermostatic Expansion Valve
US$18.00-21.00
1 Piece(MOQ)
Flow Control Valve with Check Function for Pump Discharge DN50
US$650.00
10 Pieces(MOQ)
Flange Connection Hydraulic Slow-Closing Check Valve for Pump Outlet Pipelines
US$50.00-90.00
1 Piece(MOQ)
Square Air Vent Valve Control Valve Check Valve
US$5.00-100.00
1 Piece(MOQ)
DN15-DN250 Welding Straight-Through Ammonia Shut off Control Check Stop Valve
Negotiable
1,000 USD(MOQ)
Danfoss 068z3400 Ts2 Refrigeration Accessories Thermostatic Expansion Valve
US$18.00-21.00
1 Piece(MOQ)
Clamps High Temperature China Wafer Type Stainless Steel Butterfly Valve Sanitary
US$22.00
2 Pieces(MOQ)
Danfoss 068z3229 Tex2 Refrigeration Accessories Thermostatic Expansion Valve
US$18.00-21.00
1 Piece(MOQ)
Nh3 Refrigeration Wafer Connecting Check Valve
US$10.00-600.00
1 Piece(MOQ)
S20A12b-1 Tubular Check Valve/Plate Check Valve Series -Direction Valve
US$7.00-16.00
1 parcels(MOQ)



















