CG2V-6FW-10 Vickers Relief Valve 210 Bar

Product Overview

The Vickers by Danfoss CG2V-6FW-10, CG2V-8FW-10 and CG5V-8GW-D-M-U-H7-11 are high-performance pilot-operated pressure relief valves engineered for industrial hydraulic pressure control.

The CG2V family provides manually adjusted relief/sequence valve configurations, while the CG5V family adds a solenoid-operated pilot stage for electrical loading and unloading. Both designs use a two-stage hydraulic architecture to control system pressure while handling a large portion of the available system flow.

The valves use standardized ISO 6264 mounting interfaces, allowing practical integration into existing hydraulic manifolds and replacement applications. The documented CG2V-6 configuration uses AR-06-2-A, while the size-8 family uses the corresponding size-8 ISO 6264 interface.

For replacement projects, engineering verification should cover mounting interface, pressure range, flow capacity, pilot/drain arrangement and electrical configuration rather than relying only on the first part of the model code.

Our replacement versions can also be subjected to 100% simulated working-condition testing before shipment to verify pressure-control behavior, sealing performance and functional stability.

Technical Specifications

CG2V-6FW-10

• Model: CG2V-6FW-10
• Brand: Vickers by Danfoss
• Valve Type: Pressure relief valve
• Series: CG2V, 10 Series
• Construction: Two-stage pilot-operated design
• Pressure Adjustment Range: 3-210 bar (44-3000 psi)
• Maximum Pressure: 350 bar (5000 psi)
• Maximum Flow: 200 L/min (53 USgpm)
• Adjustment: Screw / locknut
• Actuation: Manual / hydraulic pilot control
• Mounting Interface: ISO 6264 AR-06-2-A
• Mounting: Subplate mounted
• Dimensions: approx. 121.9 × 228.1 × 82.0 mm
• Reference Weight: approx. 7.7 lb / 3.5 kg
• Typical Temperature Range: approx. -20 to +70°C
• Recommended Cleanliness: ISO 19/17/14

CG2V-8FW-10

• Model: CG2V-8FW-10
• Brand: Vickers by Danfoss
• Valve Type: Pressure relief valve
• Series: CG2V, 10 Series
• Construction: Two-stage pilot-operated design
• Pressure Adjustment Range: 3-210 bar (44-3000 psi)
• Maximum Pressure: 350 bar (5000 psi)
• Maximum Flow: 400 L/min (106 USgpm)
• Adjustment: Screw / locknut
• Actuation: Manual / hydraulic pilot control
• Mounting Interface: ISO 6264 AS-08-2-A
• Mounting: Subplate mounted
• Dimensions: approx. 121.9 × 228.1 × 106.7 mm
• Reference Weight: approx. 9.7 lb / 4.4 kg according to distributor-listed product data

CG5V-8GW-D-M-U-H7-11

• Model: CG5V-8GW-D-M-U-H7-11
• Brand: Vickers by Danfoss
• Valve Type: Solenoid-operated pressure relief valve
• Series: CG5V, 11 Series
• Construction: Two-stage
• Pressure Adjustment Range: 3-350 bar (44-5000 psi)
• Maximum Pressure: 350 bar (5000 psi)
• Maximum Flow: 400 L/min (106 USgpm)
• Adjustment: Screw with locknut
• Actuation: Solenoid operated
• Coil Voltage: 24 VDC
• Electrical Connection: ISO 4400 / DIN 43650
• Mounting Interface: ISO 6264 AR-08-2-A
• Mounting: Subplate mounted
• Power Consumption: 30 W
• Typical Working Temperature: -20 to +70°C
• Fluid Cleanliness: ISO 19/17/14
• Standard Seal Material: Nitrile
• Indicator Light: No
• Stage: Two-stage

Engineering note: RPM is not a meaningful rating for these pressure-control valves. Selection should instead focus on maximum pressure, adjustment range, maximum flow, pilot configuration, tank-port limitations and electrical control requirements. The official Vickers documentation specifies 200 L/min for size 6 and 400 L/min for size 8 configurations.

Key Technical Advantages

Two-Stage Pilot-Operated Architecture

The CG2V and CG5V designs use a pilot-controlled main stage to manage system pressure at high flow rates. This architecture is particularly suitable for industrial hydraulic circuits where the relief valve may need to handle a substantial portion of total pump flow.

High Flow Capacity

Size-6 versions are rated up to 200 L/min, while size-8 versions are rated up to 400 L/min, making the platform suitable for high-flow industrial hydraulic power units and centralized systems.

Stable Pressure Control

Vickers documentation highlights optimized pressure override and cartridge-type mainstage components for repeatable and stable operation. This is particularly important in circuits where pressure stability directly affects actuator force, cycle consistency and machine productivity.

Electrical Load/Unload Control

The CG5V adds a solenoid-operated pilot stage, allowing the relief valve to be electrically loaded or unloaded. The CG5V-8GW-D-M-U-H7-11 uses a 24 VDC coil and ISO 4400/DIN 43650 connector.

Standardized Mounting

ISO 6264 mounting interfaces simplify integration into existing hydraulic manifolds and support practical replacement of installed pressure-control valves.

Remote Vent and Pilot Control

The X port can be connected to a suitable pilot valve for remote pressure adjustment or unloading, giving engineers additional flexibility when designing multi-stage pressure-control circuits.

Application Areas

Typical applications include:

• Industrial hydraulic power units
• Hydraulic presses
• Machine tools
• Die casting and foundry machinery
• Primary metal processing
• Paper and process machinery
• Test and simulation equipment
• Marine and offshore hydraulic systems
• Turbine hydraulic control systems
• Centralized high-pressure hydraulic circuits

These application categories are consistent with Vickers product documentation and current industrial distribution listings for the CG2V/CG5V platform.

Expert Maintenance Tips

Verify P, T and X Port Functions

Before installation, confirm the hydraulic schematic and identify P as pressure inlet, T as tank outlet and X as vent/remote pilot control. Incorrect pilot or drain routing can change the actual pressure-control behavior of the valve.

Control Hydraulic Contamination

Keep pilot passages and valve cavities clean. Vickers documentation specifies ISO 19/17/14 cleanliness guidance for the product family. During maintenance, prevent welding debris, seal fragments and metallic particles from entering the valve.

Distinguish Setting Range from Maximum Pressure

For CG2V-6FW-10 and CG2V-8FW-10, the adjustable range is 3-210 bar, while the maximum pressure rating is 350 bar. These values should never be treated as interchangeable during hydraulic system design.

Verify the CG5V Coil Configuration

For CG5V-8GW-D-M-U-H7-11, verify the 24 VDC coil and ISO 4400/DIN 43650 connection before commissioning. Incorrect voltage or connector configuration can cause malfunction or premature coil failure.

Inspect the Mounting Surface and Seals

Check manifold flatness, mounting hardware and O-ring condition before installation. Improper mounting or damaged seals may cause external leakage, internal bypassing or unstable pressure adjustment. Vickers installation documentation defines specific mounting-surface requirements.

Verify the Complete Model Code Before Replacement

For CG5V valves, do not identify the replacement only by CG5V-8GW. Verify the full code, including D, M, U, H7 and 11, because these coding positions define the pilot/control, solenoid identification, electrical connection, coil voltage and design configuration.