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07 - FO - Flow Control Valves

07 - FO - Flow Control Valves

Product catalog summary

Overview
The document is a catalog for flow control valves, detailing various models, specifications, and applications. It includes needle valves, pressure-compensated restrictive flow control valves, priority flow control valves, and flow divider/combiners.

Needle Valves
These bi-directional valves are available in different models with varying flow rates and pressure ratings, used for fine metering and reverse free flow applications. Key models include CP618-1, CP618-2, and CP610-1, with flow rates ranging from 10 l/min to 190 l/min and pressure ratings up to 310 bar.

Pressure-Compensated Flow Control Valves
These valves maintain a constant flow rate regardless of load pressure changes. They are categorized into restrictive-type and priority-type. Restrictive-type valves are two-ported and maintain flow from 1 to 2, while priority-type valves are three-ported, maintaining flow from 1 to 3 with excess flow bypassing to 2.

Flow Divider/Combiner
These valves divide or combine flow according to a preset ratio, unaffected by pressure. They are used in applications like synchronizing hydraulic cylinders and vehicle drive systems. Models include CP340-1 and CP342-1, with flow rates up to 340 l/min.

Specifications and Ordering Information
Each valve model is detailed with specifications such as rated pressure, flow rate, leakage, weight, and cavity type. The document also provides ordering information, including seal options, adjustment types, and housing configurations.

Application Notes
The document explains the use of different valve types in various applications, such as actuator speed control and steering priority circuits. It highlights the importance of maintaining flow accuracy and the effects of pressure changes on valve performance.

Specifications
This document provides detailed specifications for various flow control valves, including velocity fuses and flow dividers/combiners. The valves are designed to manage fluid flow in hydraulic systems, with pressure ratings typically around 210 bar (3000 psi) and flow rates varying depending on the model.

Ordering Information
Each valve model has specific ordering codes that denote features such as adjustment options, seal types, and housing configurations. Common seal materials include Buna-N and Viton, and housing options range from no housing to various BSP and SAE configurations.

Dimensions
The document includes detailed dimensional data for each valve model, with measurements provided in both millimeters and inches. This information is crucial for ensuring compatibility with existing systems.

Operation
The valves operate as in-line flow limiters or fixed ratio, pressure-compensated flow dividers/combiners. They provide non-compensated restricted flow when the specified flow setting is exceeded and allow free reverse flow in the opposite direction.

Performance Charts
Performance charts are included to illustrate the theoretical performance of each valve model, showing pressure drop versus flow rate under specified conditions.

Key Models

BC 13: In-line flow limiter with a pressure rating of 210 bar and a rated free flow of 85 l/min.
CP330-3: In-line flow limiter with a max trip flow of 110 l/min and a bypass flow of 9.5 l/min.
CP340-1: Flow divider/combiner with a rated flow of 45 l/min.
CP342-1: Flow divider/combiner with a rated flow of 150 l/min.
2F94-01: Adjustable, priority-type, pressure-compensated flow control valve with a max regulated flow of 30 l/min.

Conclusion
This catalog provides comprehensive information on flow control valves, essential for selecting the appropriate valve for specific hydraulic applications. The detailed specifications, ordering information, and performance data ensure that users can make informed decisions based on their system requirements.

Catalog excerpts

Member of the Danfoss Group Flow Control Valves

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Flow Control Valves Catalog Quick Reference Needle Valves Description Needle Valve, Bi-Directional Flow* 25 l/min 7 US gal/min 45 l/min 12 US gal/min 50 l/min 13 US gal/min 50 l/min 13 US gal/min 115 l/min 30 US gal/min 190 l/min 50 US gal/min 190 l/min 50 US gal/min 380 l/min 100 US gal/min FC - Flow Control Valves Quick Reference Flow* 10 l/min 3 US gal/min Description Needle Valve, Bi-Directional, Fine Metering Flow* 55 l/min 15 US gal/min Needle Valves Description Needle Valve, Bi-Directional, Fine Metering, Reverse Free Flow * Flow ratings are based on a pressure drop of 7 bar [100 psi]...

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Flow Control Valves Catalog Quick Reference 15 l/min 4 US gal/min 23 l/min 6 US gal/min 57 l/min 15 US gal/min Flow Control Valve, Fixed Setting, Restrictive Type 15 l/min 4 US gal/min 23 l/min 6 US gal/min 30 l/min 8 US gal/min 60 l/min 16 US gal/min Flow Control Valve, Adjustable, Restrictive Type Flow Control Valve, Fixed Setting, Priority Type 23 l/min 6 US gal/min 30 l/min 8 US gal/min 45 l/min 12 US gal/min 65 l/min 17 US gal/min 23 l/min 6 US gal/min 50 l/min 13 US gal/min 100 l/min 26 US gal/min Flow Control Valve, Adjustable, Priority Type Pressure-Compensated, Priority Flow Control...

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Flow Control Valves Catalog Quick Reference FC - Flow Control Valves Quick Reference 23 l/min 6 US gal/min 23 l/min 6 US gal/min Flow Control Valve, Fixed Setting, Bi-Directional Cavity none Description Flow Control Valve, In-line Flow* 16 l/min 4 US gal/min 47 l/min 12 US gal/min Pressure compensated, 0.38-11.4 l/min restrictive-type flow 0.1-3.0 control. US gal/min Pressure-Compensated, Priority Flow Control Cavity none Flow* 113 l/min 30 US gal/min Description Load Lowering Valve Velocity Fuse 30 l/min 8 US gal/min 60 l/min 16 US gal/min 85 l/min 22 US gal/min * Flow ratings are based on a...

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Flow Control Valves Catalog Quick Reference Velocity Fuse Description Flow Divider, Divider/Combiner Flow* 45 l/min 12 US gal/min 45 l/min 12 US gal/min 75 l/min 20 US gal/min 150 l/min 40 US gal/min 150 l/min 40 US gal/min 340 l/min 90 US gal/min Flow Control Valve, Catalog HIC 30 l/min 8 US gal/min 60 l/min 16 US gal/min 95 l/min 25 US gal/min 190 l/min 50 US gal/min Flow Divider/Combiner Pressure-Compensated, Priority Flow Control * Flow ratings are based on a pressure drop of 7 bar [100 psi] unless otherwise noted. They are for comparison purposes only. 11141714 • Rev AB • May 2014 FC- Flow...

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Flow Control Valves Catalog Application Notes Pressure compensated flow control valves are used to limit or regulate flow. Three basic types of cartridges are available; restrictive-type, priority-type, and divider/combiner type. Combination valves in manifolds for additional features such as fully adjustable flow or free reverse flow are also available. Flow control valves FC - Flow Control Valves Application Notes RESTRICTEDTYPE PRESSURE COMPENSATED Restrictive-type pressure compensated flow control valves are two-ported valves that maintain a constant flow rate from 1 to 2 regardless of load...

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Flow Control Valves Catalog Application Notes Priority-type pressure compensated flow control valves are three-ported valves that maintain a constant flow rate from 1 to 3 regardless of load pressure changes in the priority circuit downstream of 3 or in the bypass circuit downstream of 2. The control orifice in the spool is factory set to the flow specification. The valve begins to respond to load pressure changes when flow to 3 creates a pressure differential across the control orifice of approximately 7 bar 100 psi The valve accurately maintains flow to the priority circuit across the range...

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Flow Control Valves Catalog Application Notes FLOW DIVIDER / COMBINER compensated valves. When the valve is functioning as a divider, it will divide input flow from 3 to the two outputs at 2 and 4 according to a preset ratio. This ratio is unaffected by pressure. When the valve is functioning as a combiner, it will combine the flow from the two inputs from 2 and 4 into one output at 3. Note that a flow divider/combiner is specified with a nominal flow rate for each leg. When operating with flow rates higher than specified, the dividing and combining ratios will be maintained, but at a cost of...

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Flow Control Valves Catalog Needle Valve, Bi-Directional CP618-6 OPERATION This valve is a non-pressure compensated, fine-metering, adjustable flow control valve. Pressure drop Rated pressure Rated flow at 7 bar [100 psi] Leakage 310 bar [4500 psi]* 10 l/min [3 US gal/min] 6 drops/min @ Rated pressure Weight 0.12 kg 0.26 lb Cavity SDC08-2 *Updated Pressure Rating FC- Flow Control Valves CP618-6 Cross-sectional view h 0.875 in t 27-34 N.m [20-25 lbf.ft] Type E adjustment ORDERING INFORMATION CP618 - 6 - B - 6S - K Seals B = Buna-N V = Viton Housing and ports 0 = No Housing DG2B = AL,1/4 BSP DG3B...

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Flow Control Valves Catalog Needle Valve, Bi-Directional CP618-1 OPERATION This valve is a non-pressure compensated, adjustable flow control valve. Theoretical performance Pressure drop Specifications Rated pressure Rated flow at 7 bar [100 psi] Leakage Fully opened FC - Flow Control Valves CP618-1 Weight Cavity 210 bar [3000 psi] 25 l/min [7 US gal/min] 6 drops/min @ Rated pressure 0.07 kg [0.15 lb] SDC08-2 Cross-sectional view ORDERING INFORMATION CP618 - 1 - B - 6S - B Seals B = Buna-N V = Viton Housing and ports 0 = No Housing DG2B = AL,1/4 BSP DG3B = AL,3/8 BSP DG4S = AL, #4 SAE DG6S = AL,...

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Flow Control Valves Catalog Needle Valve, Bi-Directional CP618-2 OPERATION This valve is a non-pressure compensated, adjustable flow control valve. Theoretical performance Pressure drop Specifications Rated pressure Rated flow at 7 bar [100 psi] Leakage Fully opened Weight Cavity 210 bar [3000 psi] 45 l/min [12 US gal/min] 6 drops/min @ Rated pressure 0.09 kg [0.20 lb] SDC08-2 FC- Flow Control Valves CP618-2 Cross-sectional view h 0.875 in t 27-34 N.m [20-25 lbf.ft] Type E adjustment ORDERING INFORMATION CP618 - 2 - B - 6S - K Seals B = Buna-N V = Viton Housing and ports 0 = No Housing DG2B =...

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07 - FO - Flow Control Valves

07 - FO - Flow Control Valves

Catalog excerpts

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