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We ensure our 3/8 hydraulic hoses are built to last, using premium synthetic rubber and high-tensile steel wire reinforcement. This construction resists abrasion, ozone, and weathering, preventing premature wear and tear. You’ll experience fewer replacements and consistent performance, even in the most demanding industrial environments.
We engineer our 3/8 hydraulic hoses to withstand extreme working pressures, providing a safe and reliable solution for your high-performance hydraulic systems. Each hose undergoes rigorous testing to meet or exceed industry standards, guaranteeing a robust and secure connection. You can trust our hoses to perform under intense conditions without compromise.
We design our 3/8 hydraulic hoses for superior flexibility, making installation and routing in tight spaces much easier. This reduces the stress on fittings and connections, minimizing the risk of leaks and blowouts. Our hoses maintain their flexibility across a wide range of temperatures, ensuring reliable operation in any climate.
We offer 3/8 hydraulic hoses suitable for a wide array of applications, from construction and agriculture to manufacturing and material handling. Their consistent performance with various hydraulic fluids, including petroleum-based and synthetic oils, makes them incredibly adaptable. This versatility ensures you have a dependable solution for diverse operational needs.
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A 3/8 hydraulic hose is a type of flexible conduit used in hydraulic systems to transmit power by carrying hydraulic fluid under high pressure.
The “3/8” refers to its inner diameter (ID), measured in inches. These hydraulic hoses are typically constructed with an inner tube made of synthetic rubber, reinforced with layers of braided or spiraled high-tensile steel wire, and an outer cover that is resistant to abrasion, ozone, and weathering.
They are essential components in a wide range of machinery, from construction equipment and agricultural machinery to industrial manufacturing lines, where they facilitate the movement of various hydraulic fluids to operate cylinders, motors, and other hydraulic components.
Their design ensures durability, flexibility, and the ability to withstand significant pressure fluctuations, which are crucial for the reliable and efficient operation of hydraulic systems.
When we talk about a “3/8 hydraulic hose,” we are primarily referring to its inner diameter (ID). This measurement is crucial as it dictates the flow rate and overall performance of the hydraulic fluid within the system.
Here’s a breakdown of what that size means:
Inner Diameter (ID): The “3/8” directly indicates that the hose has an internal diameter of 3/8 of an inch, or approximately 9.5 mm. This is the most critical dimension for fluid flow.
Dash Size: In the hydraulic industry, hose sizes are often referred to by “dash numbers.” A 3/8 inch hose corresponds to a “-6″ dash size, as dash numbers typically represent the ID in sixteenths of an inch (6/16″ = 3/8”).
Outer Diameter (OD): While the ID is fixed at 3/8 inch, the outer diameter (OD) of a 3/8 hydraulic hose can vary depending on the hose’s construction, specifically the number and type of reinforcement layers (e.g., single or double wire braid). However, it generally falls within a range of approximately 0.63 to 0.75 inches (16-19 mm).
Accurately measuring hydraulic hose sizes is essential for optimal system performance and preventing costly failures. Precise measurements ensure proper flow, pressure handling, and a secure fit. Here’s a comprehensive guide to measuring hydraulic hose sizes, covering the key dimensions you need to consider.
Measuring the inner diameter (ID) is the primary step in determining hydraulic hose size. This refers to the clear, unobstructed bore through which the hydraulic fluid flows. Use a caliper or a specialized hose measuring tool to get an accurate reading of this critical dimension. The ID directly impacts the flow rate and pressure capacity of the hose.
The outer diameter (OD) encompasses the entire hose structure, including the inner tube, reinforcement layers, and outer cover. While less critical for flow, the OD is essential for routing, clamping, and ensuring proper fit in confined spaces. Use calipers to measure the maximum external dimension of the hose to ensure compatibility with fittings and equipment.
Accurately measuring the hose length is crucial for proper installation and function. Lay the hose flat and measure from end to end, including any fittings if they are permanently crimped. For hoses with bent fittings, measure from the center of the sealing surface. This ensures the hose reaches its connection points without strain or excess slack.
Hydraulic hose sizes are often expressed using “dash sizes,” which represent the inner diameter in sixteenths of an inch. To convert your ID measurement to a dash size, multiply the ID in inches by 16. For example, a 3/8-inch ID hose would be a -6 dash size (3/8 x 16 = 6). This standardized system simplifies identification and ordering.
Once hose dimensions are known, it’s crucial to identify the correct fitting sizes and types. Fittings are typically measured by their thread size and style (e.g., NPT, JIC, ORB). Use thread gauges and calipers to determine these specifications. Proper fitting selection ensures a leak-proof seal and compatibility with your hydraulic components, preventing system failures.
A 3/8 hydraulic hose is primarily defined by its inner diameter (ID) being 3/8 of an inch. However, other crucial dimensions contribute to its specifications and suitability for various applications.
Here are the key dimensions associated with a 3/8 hydraulic hose:
Inner Diameter (ID): This is the most fundamental dimension, indicating the clear internal bore of the hose. For a 3/8 hydraulic hose, the ID is precisely 3/8 inch (or approximately 9.5 mm). This measurement is critical for determining fluid flow rate and velocity.
Dash Size: In the hydraulic industry, hose sizes are often referred to by “dash numbers.” A 3/8 inch hose corresponds to a -6 dash size, as dash numbers typically represent the ID in sixteenths of an inch (6/16″ = 3/8″).
Outer Diameter (OD): The outer diameter of a 3/8 hydraulic hose will vary depending on its construction, specifically the number and type of reinforcement layers (e.g., single wire braid, double wire braid, multiple spiral wires). Generally, the OD for a 3/8 hose can range from approximately 0.65 inches to 0.75 inches (16.5 mm to 19 mm) for common types like SAE 100R1AT or 100R2AT, but can be larger for higher pressure ratings or specific constructions (e.g., 4-wire hoses can have an OD closer to 0.81 inches or 20.3 mm).
Minimum Bend Radius: This dimension specifies the smallest radius a hose can be bent without damaging its structure or impairing fluid flow. For a 3/8 hydraulic hose, the minimum bend radius typically ranges from 2.5 inches to 5 inches (63.5 mm to 127 mm), depending on the hose’s construction and pressure rating.
Length: While not a fixed “dimension” of the hose type itself, the specific length required for an application is a critical measurement when ordering or assembling a hydraulic hose. This is measured from end to end, including fittings if applicable.
Pressure Ratings (Working Pressure and Burst Pressure): Although not a physical dimension, pressure ratings are fundamental specifications. A 3/8 hydraulic hose will have a specified maximum working pressure (e.g., 3,000 PSI to over 6,000 PSI, depending on the SAE standard and construction) and a minimum burst pressure (typically four times the working pressure).
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