Hydraulic Hose SAE R13/R15

 

Konstruksi:

Selang ini harus terdiri dari tabung bagian dalam dari karet sintetis tahan minyak, beberapa lapis lapisan spiral kawat baja berat yang dililitkan secara bergantian arah, dan penutup karet sintetis tahan minyak dan cuaca. 

Aplikasi Selang Hidrolik Spiral Kawat Baja Tugas Berat:

Rentang selang yang cocok untuk digunakan dengan cairan hidrolik berbasis minyak bumi dalam kisaran suhu -40℃- +121℃.

 

 

STANDAR: SAE 100 R13

 

Kode Barang	ID Selang		Selang OD		Tekanan Kerja		Tekanan Ledakan Min.		Radius Tekuk Minimum		Berat
	inci	mm	inci	mm	psi	MPa	psi	MPa	inci	mm	kg/m	pon/kaki
R13-10	3/8	9.5	0.94	23.8	10000	69	40000	276	5.98	152	1.1	0.74
R13-13	1/2	12.7	1.06	27	7500	51.2	30000	207	7.87	200	1.35	0.91
R13-16	5/16	15.9	1.09	27.7	5000	35	20000	140	8.66	220	1.55	1.04
R13-19	3/4	19	1.26	32	5000	35	20000	140	9.45	240	1.65	1.11
R13-25	1	25.4	1.54	39.2	5000	35	20000	140	11.81	300	2.25	1.51
R13-32	1 1/4	31.8	1.96	49.8	5000	35	20000	140	16.54	420	3.6	2.42
R13-38	1 1/2	38.1	2.26	57.3	5000	35	20000	140	19.69	500	4.75	3.19
R13-51	2	50.8	2.83	71.9	5000	35	20000	140	24.8	630	6.9	4.64

 

STANDAR: SAE 100 R15

 

Kode Barang	ID Selang		Selang OD		Tekanan Kerja		Tekanan Ledakan Min.		Radius Tekuk Minimum		Berat
	inci	mm	inci	mm	psi	MPa	psi	MPa	inci	mm	kg/m	pon/kaki
Rp15-10	3/8	9.5	0.92	23.3	6000	41.4	24000	165.5	6	153	0.77	0.52
Rp15-13	1/2	12.7	1.06	26.8	6000	41.4	24000	165.5	8	203	0.92	0.62
Rp15-19	3/4	19	1.42	36.1	6000	41.4	24000	165.5	10.5	267	1.5	1.01
Rp15-25	1	25.4	1.69	42.9	6000	41.4	24000	165.5	13	330	2.1	1.41
R15-32	1 1/4	31.8	2.02	51.5	6000	41.4	24000	165.5	17.5	445	3.6	2.42
Rp15-38	1 1/2	38.1	2.35	59.6	6000	41.4	24000	165.5	21	533	5.1	3.43

 

 

Selang hidrolik spiral kawat baja SAE 100 R13 cocok untuk sistem hidrolik bertekanan tinggi, digunakan untuk mengalirkan oli mineral dan biologis, berbahan dasar air-glikol, air, dan pelumas. Selang ini memiliki tekanan kerja tetap 350 bar (5075 PSI), faktor keamanan empat kali lipat, dan tekanan meledak 1400 bar (20300 PSI). Strukturnya terdiri dari tiga bagian: ban dalam terbuat dari karet sintetis hitam tahan minyak, dan lapisan penguat terbuat dari empat atau enam lapis kawat baja berkekuatan tinggi dan tarik tinggi yang dililitkan secara bergantian, sehingga selang memiliki tekanan kerja yang sangat tinggi. Jumlah lapis kawat baja dapat mengontrol tekanan kerja selang hidrolik. Empat lapis kawat baja spiral berkekuatan tinggi hingga ukuran 1 inci; Enam lapis spiral dari ukuran 1-1/4 inci hingga 2 inci. Selang luar terbuat dari karet sintetis hitam berkualitas tinggi, yang membuat selang tahan terhadap keausan, korosi, pemotongan, pelapukan, ozon, penuaan, dan sinar matahari.

Selang hidrolik SAE 100 R15 cocok untuk penyaluran oli hidrolik berbasis minyak bumi dalam aplikasi bertekanan dan berdenyut tinggi. Struktur SAE 100 R15 dan SAE 100 R13 serupa, keduanya merupakan selang hidrolik spiral kawat baja bertekanan tinggi. Namun, R15 dapat menahan tekanan yang lebih tinggi daripada R13 dan dapat dirancang dalam ukuran yang lebih kecil. Selang SAE 100 R15 memiliki tekanan kerja 420 bar.

 

Apa itu SAE 100R13/SAE R15?

SAE 100R13/SAE R15 adalah selang hidrolik spiral empat lapis atau enam lapis yang diperkuat kawat baja. Selang ini cocok untuk aplikasi hidrolik bertekanan tinggi, bersuhu tinggi, dan berimpuls tinggi, serta digunakan untuk mengangkut fluida hidrolik berbasis minyak bumi, bensin, air, bahan bakar diesel, oli pelumas, glikol, oli mineral, dan lainnya. Selang ini memiliki ketahanan tekanan, ketahanan aus, ketahanan korosi, dan daya tahan yang sangat baik. Tekanan kerja SAE 100R13 yang stabil (350 bar) dan tekanan kerja selang SAE 100 R15 (420 bar) menjadikannya banyak digunakan di berbagai industri.

 

How Multi-Layer Steel Spiral Reinforcement Enhances High Quality Hydraulic Hose Performance

 

The performance of a high quality hydraulic hose, particularly those conforming to the SAE 100R13 and SAE 100R15 standards, is fundamentally enhanced by its multi-layer steel spiral reinforcement. This sophisticated construction method is what elevates these hoses to the realm of extremely high pressure and high impulse hydraulic applications.

The spiral design, featuring multiple layers of spiral plies of heavy steel wire wrapped in alternating directions, is critical for handling the immense internal forces. The alternating wrap pattern of the steel wires effectively counteracts the forces generated by the internal pressure, preventing the hose from elongating or ""snaking"" under load. This design provides superior structural integrity and minimizes volume change, which is vital for precise hydraulic control. The number of layers is directly proportional to the hose's working pressure; for the SAE 100R13, smaller sizes use four layers of high-strength steel wire spiral, while larger sizes use six layers of spiral, demonstrating that the design is precisely tuned to manage the pressure forces relative to the hose's diameter.

The result of this reinforcement is extremely high working pressure capability. For instance, the SAE 100 R13 has a fixed working pressure of 350 bar (5075 PSI), and the SAE 100 R15 can withstand an even higher working pressure of 420 bar. This immense strength provides a safety factor of four times the working pressure, ensuring reliability even during unexpected pressure surges or impulse cycles. The spiral layers also lock the hose against premature fatigue failure from constant flexing and pressure changes, which is a key measure of a high-quality product.

Beyond pressure containment, the materials used in the cover—high-quality black synthetic rubber—further enhance performance by resisting external degradation. This cover is compounded to be resistant to wear, corrosion, cutting, weathering, ozone, aging and sunlight, protecting the critical steel wire from environmental damage and securing the hose's durability and long service life.

 

Selecting a Flexible High Pressure Hydraulic Hose for High-Temperature and High-Impulse Conditions

 

Selecting a flexible high pressure hydraulic hose for systems operating under concurrent high-temperature and high-impulse conditions requires prioritizing specific material and structural properties, best exemplified by the SAE 100R13 and SAE 100R15 hoses.

The primary challenge in high-impulse applications is fatigue. These hoses are engineered to withstand not just high pressure, but rapid and repeated pressure spikes. The solution is the multiple layers of spiral plies of heavy steel wire. The spiral reinforcement structure, with layers wrapped in alternating directions, is fundamentally superior at distributing and absorbing the energy from pressure impulses, enabling the hose to achieve a high number of impulse cycles without internal or external structural breakdown. The SAE 100R15, specifically noted for its use in high-pulse applications, is the top choice when the system is subjected to severe, repetitive pressure cycling.

For high-temperature conditions, the chemical composition of the synthetic rubber layers is critical. The inner tube is made of oil resistant synthetic rubber, and the outer cover is also a high-quality synthetic rubber. These materials are formulated to remain stable and functional across a wide temperature range, typically up to +121℃. This thermal stability prevents the rubber from hardening, softening, or degrading prematurely under continuous heat exposure, which is vital for maintaining the hose's pressure-sealing capabilities and flexibility over time.

Furthermore, the flexible high pressure hydraulic hose must demonstrate excellent fluid compatibility under these challenging conditions. The SAE 100R13/SAE 100 R15 hose range is suitable for a wide array of media, including petroleum-based fluids, water-glycol based liquids, lubricants, and mineral oils. This versatility, combined with their ability to maintain flexibility and strength under extreme pressure and heat, confirms their suitability for the most demanding high-impulse, high-temperature hydraulic circuits.

 

The Role of Heavy Steel Wire Spiral Layers in Flexible High Pressure Hydraulic Hose Durability

 

The heavy steel wire spiral layers are the essential feature that dictates the durability and superior performance of flexible high pressure hydraulic hose types like SAE 100 R13/R15. These layers directly ensure the hose's immense pressure capacity, resistance to fatigue, and overall structural longevity.

The most crucial role is pressure containment. By using multiple layers (four to six layers, depending on the size) of heavy steel wire wrapped in a tight spiral configuration, the hose achieves an extremely high working pressure. For example, the SAE 100 R15 reaches 420 bar, a pressure that would instantly rupture standard hoses. The steel wire acts as the primary load-bearing element, transforming the flexible rubber into a high-strength pressure conduit. The alternating direction of the spiral wraps ensures the containment forces are balanced, preventing the hose from twisting or ballooning under pressure.

This robust reinforcement also provides exceptional fatigue resistance and durability in dynamic environments. The heavy wire construction resists the repeated stressing from pressure impulses and external flexing, which are common causes of failure in less reinforced hoses. The high-strength steel wires are engineered to maintain their integrity through thousands of pressure cycles, giving the hose a long service life and a high safety factor against bursting.

The durability is further protected by the hose's outer layer. The oil and weather resistant synthetic rubber cover is crucial for shielding the heavy steel wire spiral layers from external degradation. This cover resists wear, corrosion, cutting, weathering, ozone, aging and sunlight. If the steel wire were exposed to moisture or corrosive environments, it would rust and fail prematurely. The outer synthetic rubber provides the necessary environmental armor to ensure the mechanical strength of the wire remains intact throughout the hose’s operational life.