Industrial Refrigeration Cold Storage Connecting Ammonia Freon System Butt Welding Stop Valve
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Product Highlights
- Multi-Medium Compatibility: Suitable for R12, R22, R502, R134a, R404a, R507, R717, CO2, and other media.
- High Pressure Rating: Nominal pressures of 4.0MPa and 6.3MPa for robust industrial performance.
- Premium Material Construction: Valve rods made of 304 Stainless Steel for durability and corrosion resistance.
- Comprehensive Product Range: Includes stop valves, check valves, regulating valves, filters, and solenoid valves.
- Global Certifications: Certified by CE, ISO, SGS, TUV, and Bsi for international quality standards.
- Customizable Options: Color of valve body available in Grey and Red; structure forms include Angle and Straight.
- Versatile Valve Types: Offers Stop, Check, Stop Check, Regulating, Filter, Overflow, and Solenoid valves.
Product Attributes
- Customization
- Available
- Nominal Pressure
- 4MPa, 6.3MPa
- Applicable Medium
- R12, R22, R502, R134A, R404A, R507, R717 and Other
- Model NO.
- SVD
- Applicable Temperature
- -50 ~ +150
- Structure Form
- Angle & Straight
- Valve Rod Material
- 304 Stainless Steel
- Applicable System
- Nh3, Freon and CO2
- Certificate
- CE, ISO, SGS, TUV, Bsi
- Color of Valve Body
- Grey and Red
- Transport Package
- Carton Box or Plywood Box Packaging
- Specification
- DN15-DN300
- Trademark
- DOFUN
- Origin
- China
- HS Code
- 8481804090
- Production Capacity
- 150000 Sets
- Package Size
- 30.00cm * 20.00cm * 20.00cm
- Package Gross Weight
- 20.000kg
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of Industrial Refrigeration Cold Storage Connecting Ammonia Freon System Butt Welding Stop Valve
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Product Description
| Ammonia ,Freon,CO2 System Refrigeration Valve | |||||
| Valve Name | Model | Nominal Diameter | Nominal Pressure | Applicable Temperature | Applicable Medium |
| Stop Valve | SVD | DN15 - DN300 | 4.0Mpa,6.3Mpa | -50ºC~+150ºC | R12, R22, R502, R134a, R404a, R507, R717 CO2,and etc. |
| Check Valve | CVD | DN15 - DN150 | 4.0Mpa,6.3Mpa | -50ºC~+150ºC | |
| Stop Check Valve | SCV | DN15 - DN150 | 4.0Mpa,6.3Mpa | -50ºC~+150ºC | |
| Regulating Valve | TVD | DN15 - DN125 | 4.0Mpa,6.3Mpa | -50ºC~+150ºC | |
| Filter | FVD | DN15 - DN150 | 4.0Mpa,6.3Mpa | -50ºC~+150ºC | |
| Overflow Valve | OFD | DN20,DN25 | Pressure Adjustment Range: 2-6.5bar 3.5-8bar | -50ºC~+150ºC | |
| Liquid Level Switch | LS50 | DN20,DN25 | 2.8MPa | -50ºC~+65ºC | |
| Inlet Pressure Regulating Valve | IPRV | DN25-DN125 | 2.8MPa | -50ºC~+120ºC | |
| Inlet Pressure Regulating Valve(Solenoid Forced Close) | IPRV-1C | DN25-DN125 | 2.8MPa | -50ºC~+120ºC | |
| Inlet Pressure Regulating Valve(Solenoid Forced Open) | IPRV-1N | DN25-DN125 | 2.8MPa | -50ºC~+120ºC | |
| Outlet Pressure Regulating Valve | OPRV | DN25-DN65 | 2.8MPa | -50ºC~+120ºC | |
| Differential Pressure Regulating Valve | DPAV | DN25-DN125 | 2.8MPa | -50ºC~+120ºC | |
| Differential Pressure Regulating Valve(Solenoid Forced Open) | DPAV-1N | DN25-DN125 | 2.8MPa | -50ºC~+120ºC | |
| Neck Flange Check Valve | NRVD | DN25-DN150 | 2.5MPa | -50ºC~+150ºC | |
| Solenoid Valve | DEVSC/ DEVS |
DN3-DN50 | 2.5MPa | -40ºC~+105ºC | |
| Motor Valve | DFMV | DN20-DN125 | 4.0Mpa,6.3Mpa | -50ºC~+150ºC | |
| Pneumatic Solenoid Valve | DGPV | DN40-DN125 | 2.8MPa | -50ºC~+120ºC | |
| Two-Step Open Solenoid Valve(Normally Close) | DGPV-2C | DN40-DN125 | 2.8MPa | -50ºC~+120ºC | |
| Two-Step Open Solenoid Valve(Normally Open) | DGPV-2N | DN40-DN125 | 2.8MPa | -50ºC~+120ºC | |
| Valve Station | DFCV | 4.0Mpa | -50ºC~+150ºC | ||
| Small Stop Valve | SVS | DN6,DN10 | 4.0Mpa | -50ºC~+150ºC | |
| Gauge Valve Series | SVA | DN6,DN10 | 4.0Mpa | -50ºC~+150ºC | |
| Motor Ball Valve | DBVD | DN25-DN150 | 4.0Mpa | -50ºC~+150ºC | |
| Cartridge Filter | CFVD | DN15-DN80 | 2.5MPa | -50ºC~+150ºC | |
| Double Stop Valve | DSVD | DSV1: DN25 | 4.0Mpa | -50ºC~+150ºC | |
| DSV2:DN20,DN25,DN32 | |||||
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Our Certificate
Beautiful factory, and Hard-working DOFUN people.

Shandong DoFun Refrigeration Technology Co., Ltd. ( Hereinafter referred to as DOFUN) is located in LiaoCheng, an ancient canal capital with rich historical and cultural heritage as well as beautiful scenery.
The company covering an area of over 30 mu, and with an industrial park of over 50 mu in Yantai, has a registered capital of 50 million RMB. It owns a modern factory of over 10000 square meters and multiple world's advanced valve production lines and experimental text board. The main products conclude stop valve, check valve, stop check valve, overflow valve, motorized valve, throttle valve, filter and inlet pressure regulators etc. With strong technical force, excellent production equipment, complete detection means, strict system management, superior and reliable products and continuous products innovation, the valves of various materials produced by the company have been widely used in sectors of refrigeration, petrifaction, oil refining, nuclear power, chemical engineering, metallurgy, medicine, food, national defense, war and urban construction thereafter, DOFUN has gained great fame and affect at home and abroad, and received remarkable performance.
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About the Supplier
This supplier has been audited by SGS. Verify the report on the official SGS website with ID "QIP-ASR235364". Items marked "" are certified.
Company Profile
ShanDong DoFun Refrigeration Technology Co., Ltd. ( Hereinafter referred to as DOFUN) is located in LiaoCheng, an ancient canal capital with rich historical and cultural heritage as well as beautiful scenery.
The company covering an area of over 30 mu, and with an industrial park of over 50 mu in Yantai, has a registered capital of 50 million RMB. It owns a modern factory of over 10000 square meters and multiple world's advanced valve production lines and experimental text board. The main products conclude stop valve, check valve, stop check valve, overflow valve, motorized valve, throttle valve, filter and inlet pressure regulators etc. With strong technical force, excellent production equipment, complete detection means, strict system management, superior and reliable products and continuous products innovation, the valves of various materials produced by the company have been widely used in sectors of refrigeration, petrifaction, oil refining, nuclear power, chemical engineering, metallurgy, medicine, food, national defense, war and urban construction thereafter, DOFUN has gained great fame and affect at home and abroad, and received remarkable performance.
DOFUN has always been acting on the advanced management mode of modern enterprise, relying on the advantage of innovative and high technology, abiding by the quality principle of "safe, efficiency, energy-saving and sustainable development", following the idea of " pragmatic, innovative and aspiring", sticking to the purpose of "basing on quality, taking users first and serving customers wholeheartedly", and making unremitting endeavors to provide newer and better products and services for both new and old customers at home and abroad and to regard product quality and reputation as the company's life. Looking forward to the future, we will take the local market as the base and radiate to the global marketing network by comprehensive services at a newer and higher level, so as to guarantee the infinite extension of the brand in the future, open a new era of valve industry, and develop into the largest and most professional supplier in the pump valve industry in the end.
The true connotation of DOFUN is not only realizing the dream in the heart but also working at every products with great care to make it a metal art work. It will be the goal for us to fight for!
When people on earth are still making use of every minute in this step, we havfe already set sail towards to the next one.
DOFUN Technology, be the distinguished only!
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory
- Address
- Jiaming Industrial Park, Liaocheng City, Shandong Province, Liaocheng, Shandong, China
-
Plant Area
- 13000 square meters
-
Number of Employees
- 85
-
Registered Capital
- 20,000,000 RMB
-
Terms of Payment
- LC, T/T, Western Union
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- Qingdao Port
Our Production Capability & Technical Expertise
-
Main Products
- Refrigeration Valve, Ammonia Valve
-
Production Machines
- Machining Center, Drilling Machine, Testing Machine
-
ODM Service Available
- Yes
-
OEM Service Available
- Yes
-
R&D Engineers
- 6 people
-
Own Brand
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2012-09-18
- Export Year
- 2019-09-02
-
Main Markets
- South America, Europe, Southeast Asia/ Mideast, Africa, East Asia(Japan/ South Korea), Australia, Domestic
-
Number of Foreign Trading Staff
- 3
-
Overseas Agent/Branch
- No
Our Certifications, Standards & Industry Recognition
-
Product Certification
- CE, Others
FAQ
- Which refrigerants and media are compatible?
- Compatible with R12, R22, R502, R134a, R404a, R507, R717, CO2, and other applicable media.
- What nominal pressure ratings are available?
- The system supports nominal pressures of 4.0MPa and 6.3MPa.
- What materials are used for the valve components?
- The valve rod material is 304 Stainless Steel, ensuring high quality and durability.
- What certifications does the product have?
- The products are certified with CE, ISO, SGS, TUV, and Bsi.
- Can the valve body color be customized?
- Yes, the color of the valve body is available in Grey and Red.
- What types of valves are included in the system?
- The system includes Stop Valves, Check Valves, Stop Check Valves, Regulating Valves, Filters, Overflow Valves, and Solenoid Valves.
- What is the structure form of the valves?
- The available structure forms are Angle and Straight.
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