RPKC-LAN DMDA-MNN NFBC-LCN RDFA-LAN CXBA-XAN NCFB LCN CXFA XFN CXBA-XEV Hydraulic Single Check Valve

1. Overview of technical parameters
Parameter item: Specific information
Product type: Threaded cartridge check valve
Flow rate (L/min): 80
Standard socket model: T-11A
Unidirectional opening pressure (bar): 1.5
Hexagonal dimensions (mm) for valve head installation: 41.3
Valve installation torque (Nm): 475-508
Main function: Allows the oil to flow freely from port 1 to port 2 and prevents reverse flow
Model analysis and functional role
Model analysis: The model “CXBA-XAN” follows a specific naming rule.CX: Usually represents the Check Valve function of the Cartridge type.

B: It may indicate the size series or internal structure code of the valve.

A: Usually refers to the standard model or port configuration.

XAN: Suffix code, which may be used to identify specific sealing materials, adjustment options or applicable standards.

2. Function and Role:
One-way conduction: Only allows the hydraulic oil to flow from the tip of the nose to the side of the nose, preventing reverse flow and protecting the pump, cylinder and other components from reverse impact.
Circuit pressure holding: Maintain the stability of branch pressure, prevent system pressure relief, and be suitable for accumulator and cylinder pressure holding scenarios.
Loop isolation: Separate different pressure zones to prevent mutual interference between loops and enhance system stability.
Floating structure: Reduces installation torque sensitivity, minimizes the risk of jamming, and enhances long-term operational reliability.

3. Product attributes and technical features
Structural attribute: It belongs to a threaded cartridge valve. This design enables it to be screwed into the standardized holes of the valve block like a bolt, featuring a compact structure that is convenient for integration and maintenance.

Core technical features: Some similar products adopt a floating structure. This design allows the precise components inside the valve to float slightly within the valve body, which can reduce the sensitivity to installation torque and minimize the risk of the valve core getting stuck due to processing errors or excessive torque, thereby enhancing reliability.

Performance features: It has excellent high-pressure resistance and extremely low leakage, which helps to enhance the efficiency and stability of the entire hydraulic system

4. Installation, Usage and Scenarios
Installation and usage precautions

Precise installation torque: A torque wrench must be used and strictly controlled within the specified range of 475-508 Nm. Insufficient torque may cause leakage, while excessive torque may damage the valve or valve block.

Cleanliness: Before installation, it is necessary to ensure that the valve block installation holes, threads and the valve body itself are absolutely clean to prevent contaminants from entering the system.

Seal inspection: Before installation, confirm that O-rings and other seals are in good condition and of the correct model, and ensure they are in place.

Oil port correspondence: During installation, it is necessary to confirm that the port marks (Port 1, Port 2) on the valve body exactly correspond to the oil circuit design of the valve block.

5. Usage scenarios and application models
This valve is widely used in the hydraulic systems of industrial equipment that require reliable one-way shut-off function. Typical scenarios include:

Construction machinery: Boom or bucket rod cylinder circuits of excavators and loaders, used for load holding.

Agricultural machinery: Hydraulic lifting system of tractors.

Other industrial fields: such as hydraulic stations for equipment in metallurgy, mining, etc.

6. Complete model recommendations for the same series
Model “CXBA-XAN” belongs to a large “CX” series of cartridge check valve families. Different suffixes represent different characteristics (such as sealing materials, opening pressure, and adjustment methods). The following are some common variant models of the same series for your selection or reference based on different needs:
Examples of optional model suffixes for the core series
CXBA series -XAN, -XBN, -XEN, -XFN
CXDA series -XAN, -XCN, -XDN, -XBN, -XEN, -XFN
CXFA series -XAN, -XCN, -XDN, -XBN, -XEN, -XFN
CXHA series -XAN, -XCN, -XDN, -XBN, -XEN, -XFN
CXJA series -XAN, -XCN, -XDN, -XBN
Other variants include CXCD-XCN, CXED XCN, CXGD-XCN, etc

1. Same flow rate (40L/min, T-162A jack)
CXBA-XAN (NBR seal, Standard)
CXBA-XBN (NBR sealed, Special configuration)
CXBA-XCN (FKM sealed, high temperature resistant/chemical medium resistant)
CXBA-XAV (FKM sealed, non-adjustable)
2. Different flow rates (same structure, different sockets)
CXDA-XAN: 80L/min, T-13A jack, installation torque 41-47Nm
CXFA-XAN: 160L/min, T-5A jack, installation torque 61-68Nm
CXAD-XAN: 30L/min, T-162A jack (free flow: nasal side → nasal tip)
CXHA-XAN: 320L/min, T-18A jack, high-pressure and high-flow working conditions
3. Reverse free flow (nasal side → nasal tip)
CXAD-XAN (30L/min, T-162A)
CXCD-XAN (40L/min, T-162A)
CXED – XAN (80L/min, T-13A)
CXGD-XAN (160L/min, T-5A)