Best Danfoss Check valves for Industrial refrigeration SCA-X 25-40 Supplier, Product

The Danfoss SCA-X 25-40, designed specifically for industrial refrigeration applications, incorporates an integrated shut-off valve function. This core feature effectively prevents backflow of media within piping systems, ensuring unidirectional flow and safeguarding equipment from damage caused by reverse flow impacts. Additionally, its angle-type structure optimizes internal flow path layout while enabling low-pressure-drop operation—with a design opening pressure differential of just 0.04 bar (0.58 psig). This enhances medium flow conditions, further meeting industrial refrigeration systems' demands for stable and efficient medium transportation.

Product Description

Overview

Danfoss SCA-X 25-40 Series Check Valves are valve products designed for industrial refrigeration applications.

Basic Function: The SCA-X Series Check Valve incorporates an integrated shut-off valve function that prevents backflow of the medium, ensuring unidirectional flow. This protects equipment within the piping system from damage caused by reverse flow surges.

Angle Pattern

The SCA-X valve utilizes an angle pattern design. This configuration optimizes flow paths, enabling the valve to open at very low pressure differentials and providing favorable flow conditions.

Modular Design

Each valve body offers multiple connection types and sizes. By replacing the entire top assembly, the SCA-X valve can be converted into any other product within the Flexline™ SVL series, such as a manual regulating valve, globe valve, or strainer.

Maintenance-Friendly

The valve disassembles easily for inspection and servicing. It features a vent cap and internal backseat functionality, allowing replacement of the main shaft seal even under pressure.

Laser-Cut V-Port

The laser-cut V-port delivers outstanding opening characteristics. The valve cone incorporates built-in flexibility, ensuring precise and tight closure against the seat.

Damping Function

Well-balanced damping between piston and cylinder provides optimal protection under low loads and prevents pulsation.

Technical Parameters
  • Connection Size: For example, the inlet and outlet connection size for SCA-X 25 is 1” butt weld, while SCA-X 40 features a 1 1/2” (40mm) connection size, conforming to EN 10220 standards.
  • Maximum Working Pressure: Typically 52 bar.
  • Temperature Range: -60°C to 150°C.
  • Refrigerant Compatibility: SCA-X series check valves are suitable for HCFCs, HFCs, R717 (ammonia), R744 (carbon dioxide), propane, butane, isobutane, and ethane refrigerants.
Product Specifications
Product Details
Gross weight 2.844 Kilogram
Net weight 1.958 Kilogram
Volume 8.931 Liter
EAN 5702428486071
Type SCA-X 25-40
Product group Check valves
Product Name Description Function module
Approval CE
Brand SVL Flexline
China RoHS compliance Yes
China RoHS exemption clause No
Contains batteries No
Equipment Cap
EU RoHS compliance Yes
EU RoHS exemption clause No
Max. Working Pressure [bar] 52 bar
Max. Working Pressure [psig] 754 psig
Packing format Single pack
Parts Program name SCA-X
Product accessories SVL Flexline accessories
Quantity per packing format 1 pc
REACH Candidate List substances No
Serviceable SVL Flexline spare parts
Temperature range [°C] [max] 150 °C
Temperature range [°C] [min] -60 °C
Temperature range [°F] [max] 302 °F
Temperature range [°F] [min] -76 °F
Type designation Top Complete
Used for product SCA-X 25
SCA-X 32
SCA-X 40
Models

Product Range: Check valves for Industrial refrigeration SCA-X 25-40

Function Module: SCA-X 25-40, SVL Flexline, Max. Working Pressure [bar]: 52

Model Code: 148B5482

Compatible Valve sizes: SCA-X 25; SCA-X 40; SCA-X 32

Delivery Information

Delivery information typically includes delivery times, shipping methods, packaging, etc., which may vary depending on the seller and the location of purchase.

Manuals & Resources
FD-615MT Specs.pdf
Check valves for Industrial refrigeration SCA-X 25-40 datasheet.pdf
Download datasheet
Frequently Asked Questions
Q1: What is the primary function of the SCA-X 25-40 series check valves?
The SCA-X Series Check Valve incorporates an integrated shut-off valve function that prevents the backflow of refrigeration media, ensuring unidirectional flow and protecting piping systems from reverse flow surge damage.
Q2: What refrigerants are compatible with these check valves?
They are highly compatible with HCFCs, HFCs, R717 (ammonia), R744 (carbon dioxide), and flammable refrigerants such as propane, butane, isobutane, and ethane.
Q3: Can the main shaft seal of the SCA-X check valve be replaced under pressure?
Yes, the valve features an internal backseat functionality which allows the safe replacement of the main shaft seal even when the system is under pressure.
Q4: What is the maximum working pressure and temperature range for this series?
The maximum working pressure is 52 bar (754 psig), and it functions reliably within a temperature range of -60°C to 150°C (-76°F to 302°F).
Q5: How does the modular design benefit system upgrades?
Thanks to the SVL Flexline modular structure, each valve body accepts different functional inserts. By replacing the top assembly, an SCA-X check valve can easily be converted into a manual regulating valve, globe valve, or strainer.
Q6: What connection standards do the SCA-X 25 and SCA-X 40 valves use?
The SCA-X 25 uses a 1-inch butt weld connection, and the SCA-X 40 uses a 1 1/2-inch (40mm) connection, conforming to EN 10220 engineering standards.

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