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Double Seat Safety Valve Dsv Sfv
US$10.00-380.00
1 Piece
Product profile
Customization
AvailableWarranty
12 MonthsType
Air-CooledModel NO.
SRVCooling Water
Industrial WaterSystem Type
CombinedFans Species
Double-speed fanNoise Level
LowApplication Fields
Food ProcessingCertification
RoHS, UR, ISO, CE, CCCCondition
NewNominal Pressure
4MPa, 6.3MPaApplicable Medium
R12, R22, R502, R134A, R404A, R507, R717 and OtherApplicable Temperature
-50 ~ +150Structure Form
Angle & StraightValve Rod Material
LccApplicable System
Nh3, Freon and CO2Certificate
CE, ISO, SGS, TUV, BsiColor of Valve Body
Grey and RedTransport Package
Carton Box or Plywood Box PackagingSpecification
DN25 DN20 DN32Trademark
DOFUNOrigin
ChinaHS Code
8481804090Production Capacity
150000 SetsKey features
Wide Pressure Range: Supports nominal pressures of 4.0MPa and 6.3MPa for high-pressure applications.
Multi-Medium Compatibility: Suitable for R12, R22, R502, R134A, R404A, R507, R717, CO2, and Ammonia.
Comprehensive Certification: Certified by CE, ISO, SGS, TUV, BSI, RoHS, UR, and CCC standards.
Dual Color Options: Valve body available in Grey and Red colors to meet specific identification needs.
Custom Structure Forms: Offers both Angle and Straight structure forms for flexible installation.
Professional OEM/ODM: Supports OEM and ODM services with 6 dedicated R&D engineers.
12-Month Warranty: Provides a 12-month warranty period for all purchased products.
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: ≤7.12h 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 is the warranty period for this product?
A:
We provide a 12-month warranty for all our products.
Q:What certifications does the product hold?
A:
The product holds CE, ISO, SGS, TUV, BSI, RoHS, UR, and CCC certifications.
Q:Can I customize the valve structure or color?
A:
Yes, we offer Angle and Straight structure forms, and the valve body is available in Grey and Red.
Q:What is the maximum nominal pressure supported?
A:
The nominal pressure options are 4.0MPa and 6.3MPa.
Q:Does the manufacturer support OEM or ODM services?
A:
Yes, we provide both OEM and ODM services with a team of 6 R&D engineers.
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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