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SAE 100R4 Hydraulic Oil Suction and Return Hose IntroductionHydraulic suction hoses, also commonly known as hydraulic return line hoses, are primarily used for the suction and return lines of hydraulic systems. Unlike ordinary high-pressure hoses, their key feature is an internal spiral steel wire reinforcement layer that withstands vacuum or negative pressure, preventing the hose from collapsing due to external atmospheric pressure during the suction process, thereby ensuring smooth fluid flow into the hydraulic pump.SAE 100R4 hydraulic suction and return hose complies with SAE J517 standards and is specially used for the oil suction and return lines of hydraulic systems. It is oil-resistant, pressure-resistant, and bending-resistant.SAE 100 R4 hydraulic suction hose featuresOur hydraulic suction hoses feature a three-layer construction, with both inner and outer layers made of high-quality synthetic rubber. The inner tube is oil-resistant and corrosion-resistant, making it suitable for conveying a variety of fluids, including petroleum and water-based hydraulic oils. The outer layer is abrasion-resistant, weather-resistant, and UV-resistant, protecting the inner tube from environmental damage and extending the hose’s service life.- It is resistant to negative pressure and suitable for oil suction applications.
- EN/DIN and New SAE rated working pressure
Flame resistant property of the cover compoud, MSHA approved
Smooth covery FRAS approved
OEM brand hose layline
Part No.
I.D.
O.D.
W.P
B.P
B.R
W.T
Dash
Inch
mm
mm
MPa
PSI
MPa
PSI
mm
kg/m
R4-12
3/4″
19.1
34.9
2.1
305
8
1218
125
0.920
R4-16
1″
25.4
41.3
1.7
246
7
986
150
1.100
R4-20
1-1/4″
31.8
50.8
1.4
203
6
812
255
1.660
R4-24
1-1/2″
38.1
57.2
1.1
152
4
609
255
2.000
R4-32
2″
50.8
69.9
0.7
101
3
406
300
2.580
R4-40
2-1/2″
63.5
82.6
0.4
58
2
232
355
3.180
R4-48
3″
76.2
95.3
0.4
58
2
232
460
3.700
R4-56
3-1/2″
88.9
107.9
0.4
58
2
232
530
4.300
R4-64
4″
101.6
120.7
0.4
58
2
232
610
4.900
Hydraulic hoses range from 3/4" to 4" in diameter. Each hose is reinforced with spiral steel wire, allowing even large diameters to withstand four times the burst pressure.
The maximum working pressure reaches 2.1 MPa/305 PSI with a 3/4" inner diameter.
As the hose’s inner diameter increases, the working pressure it can withstand decreases. For a 4" inner diameter hose, the maximum working pressure reaches 58 PSI.
SAE 100 R4 hydraulic suction and return hose application:For use of low pressure and vacuum application with petroleum based hydraulic fluids.
It is frequently applied to suction & return line, anti-static delivery line, and vacuum applications for petroleum-based and water-based hydraulic fluids.Industrial machinery: Hydraulic return lines for large equipment such as injection molding machines and presses.
Construction and engineering machinery: Suction lines for heavy equipment such as excavators, loaders, and cranes.
Agricultural machinery: Hydraulic systems for equipment such as tractors and harvesters.
General industry: Pump suction lines for various liquid media.
FAQs About SAE 100R4 Suction HoseQ1: What is SAE 100r4?
A1: SAE 100 R4 is mainly used for oil suction and delivery in hydraulic systems. It has a three-layer structure. The inner layer is oil-resistant synthetic rubber, the outer layer is wear-resistant and weather-resistant rubber, and the middle layer is a textile reinforcement with spiral steel wire reinforcement. It can withstand vacuum or negative pressure. It is more pressure-resistant than ordinary textile-reinforced hydraulic hoses and has a wide range of uses.
Q2: Can SAE 100R4 be used for high-pressure hydraulic lines?
A2: No, it is designed for suction and return applications, not for high-pressure working lines.
Q3: What fluids are compatible with SAE 100R4 hose?
A3: Petroleum-based hydraulic fluids, water-glycol, and some synthetic fluids (check chemical compatibility).Q4: What is the temperature range of SAE 100R4 hose?
A4: Typically -40°C to +100°C (-40°F to +212°F).Q5: What sizes are available?
A5: From 3/4" to 4", with custom options available.
Q6: What is the difference between SAE 100R4 and SAE 100R3?
A6: SAE 100R4 is designed for suction and return lines, with reinforcement that can handle vacuum, often with spiral steel wire reinforcement, while SAE 100R3 is a low-pressure hydraulic hose with textile braid reinforcement.Sinopulse is a market-leading hydraulic hose manufacturer.
We offer hydraulic hoses that can deliver high performance and stand the hardest working environments. Our hoses are designed to perform in both high and low and pressures and are suitable for a variety of applications.Each of our hydraulic hose is in compliance with stringent industry standards such as SAE 100 and DIN.we also have iso and MSHA certificate.
Our reinforced hoses can fit a wide variety of adapters and fittings.
Our hydraulic hose is designed for use with petroleum- and water-based hydraulic fluids. It can handle gasoline, diesel fuels, mineral oils, glycol, lubricating oils and more.
Hydraulic hoses handle high pressures in a wide range of fluid-power applications, from agriculture and manufacturing to all variety of heavy equipment operations.We can also make hydraulic assembly for customers.the finished assemblies are lengths of hydraulic hose with crimp fittings pre-attached. Customize the type of hose, length,and fitting to create the perfect assembly for your project.
We have a large hydraulic hose range, which can satisfy your different applications.
SAE100 R1AT/EN 853 1SN (ONE STEEL WIRE BRAIDED HYDRAULIC HOSE)
SAE100 R2AT/EN853 2SN (TWO STEEL WIRE BRAIDED HYDRAULIC HOSE)
DIN 20023/EN 856 4SP (FOUR STEEL WIRE SPIRAL HYDRAULIC HOSE)
DIN 20023/EN 856 4SH (FOUR STEEL WIRE SPIRAL HYDRAULIC HOSE)
SAE100 R12 (FOUR STEEL WIRE SPIRAL HYDRAULIC HOSE)
SAE100 R13 (FOUR OR SIX STEEL WIRE SPIRAL HYDRAULIC HOSE)
SAE100 R15 (SIX STEEL WIRE SPIRAL HYDRAULIC HOSE)
EN 857 1SC (ONE STEEL WIRE BRAIDED HYDRAULIC HOSE)
EN857 2SC (TWO STEEL WIRE BRAIDED HYDRAULIC HOSE)
SAE100 R16 (ONE OR TWO STEEL WIRE BRAIDED HYDRAULIC HOSE)
SAE100 R17 (ONE OR TWO STEEL WIRE BRAIDED HYDRAULIC HOSE)
SAE100 R3 / EN 854 2TE (TWO FIBRE BRAIDED HYDRAULIC HOSE)
SAE100 R6 / EN 854 1TE (ONE FIBRE BRAIDED HYDRAULIC HOSE)
SAE100 R5 (FIBER BRAIDED COVER HYDRAULIC HOSE)
SAE100 R4 (HYDRAULIC OIL SUCTION HOSE)
SAE100 R14 (PTFE SS304 BRAIDED)
SAE100 R7 (ONE WIRE OR FIBRE BRAIDED THERMOPLASTIC HOSE)
SAE100 R8 (TWO WIRE OR FIBRE BRAIDED THERMOPLASTIC HOSE)
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