Hydraulic Manifold for Quick Couplers - Specifications & Verification

Product Specifications

Technical details and manufacturing context for Hydraulic Manifold

Definition

The hydraulic manifold in a quick coupler serves as the central distribution hub that routes hydraulic fluid from the power source to various functions such as locking/unlocking mechanisms, pressure regulation, and safety systems. It integrates multiple valves, ports, and passages into a compact block to minimize leaks and simplify maintenance. This component is typically manufactured from carbon steel, stainless steel, or aluminum alloy, with the specific material grade (e.g., 6061-T6 aluminum) depending on the application's weight and corrosion resistance requirements. The manifold's design includes a specified number of ports (typically 4 to 8) with port sizes ranging from G1/4 to G1/2 (ISO 228-1), allowing connection to various hydraulic lines. Flow rate ranges from 20 to 60 L/min, ensuring stable pressure drop. The manifold operates within a temperature range of -20 to 80°C, and the seal material is typically NBR (nitrile rubber) for oil compatibility. Surface finish on sealing surfaces is critical, specified as Ra 0.8–1.6 μm (ISO 1302). Weight varies from 0.5 to 2.0 kg depending on port count and size. Pressure drop at maximum flow rate is 0.1–0.3 MPa. These parameters are reference ranges for directory purposes; actual values must be confirmed with the legal manufacturer or supplier for the specific model and application. The manifold is a component used in machinery and equipment manufacturing, particularly in quick coupler systems, and its design must be verified against the intended hydraulic circuit requirements.

Working Principle

Hydraulic fluid enters the manifold through an inlet port and is directed through internal passages to multiple outlet ports. Valves within the manifold control flow direction, pressure, and volume to operate different functions of the quick coupler simultaneously or sequentially. The manifold's internal geometry and valve configurations determine the distribution logic, enabling precise control of locking mechanisms, pressure regulation, and safety systems. Proper selection of port sizes, flow rates, and pressure ratings is essential to match the system's requirements. Verification of the manifold's performance involves checking pressure drop, flow stability, and seal integrity under operating conditions. Maintenance signals include leaks, pressure fluctuations, or reduced flow, indicating potential wear or contamination. Failure boundaries are defined by the operating pressure and temperature limits; exceeding these can cause seal degradation or structural failure.

Common Materials

Carbon steel, Stainless steel, Aluminum alloy

Technical Parameters

Parameter	Typical range	Notes & selection driver
Flow Rate	20–60 L/min	Maximum flow for stable pressure drop
Number of Ports	4–8	Determines circuit complexity
Port Size	G1/4–G1/2 inch	Thread size for connectionsISO 228-1
Body Material	6061-T6	Aluminum alloy for weight and corrosion resistanceASTM B211
Seal Material	NBR	Nitrile rubber for oil compatibilityASTM D2000
Operating Temperature	-20–80 °C	Seal performance degrades outside range
Surface Finish	Ra 0.8–1.6 μm	Critical for sealing surfacesISO 1302
Weight	0.5–2.0 kg	Depends on port count and size
Pressure Drop	0.1–0.3 MPa	At maximum flow rate

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Inlet Port Part
Receives hydraulic fluid from the power source

Material: Steel
Outlet Ports Part
Distribute fluid to different quick coupler functions

Material: Steel
Internal Passages Part
Route hydraulic fluid between ports

Material: Same as manifold body
Valve Seats Part
Provide sealing surfaces for control valves

Material: Hardened steel
Valves
Set direction, pressure and volume to each outlet circuit.

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Hydraulic Manifold.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Quick Coupler

View system integration details

Manufacturers of Hydraulic Manifold

12 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

Shenzhen Jewellok Technology

Shenzhen, Guangdong, CN

Also makes: Pressure Regulator, Diaphragm Valve, Delivery System and 8 more

Managed by the manufacturer
Listed on the company's own website

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BCST Group

Shanghai, CN

Also makes: Butterfly Valve, Signal Processor, Temperature Controller and 9 more