① SAE J20 R1 Heavy Condition Type
Mainly used in heavy duty working conditions typical of diesel locomotives.
The reinforcement material may consist of multiple layers of fabric or cord fabric, single or multiple layers of knitted, braided or wound yarns.
② SAE J20 R2 Heavy Duty Inline Wire Type
Similar in structure to R1, but with single or multi-strand wire helix embedded in the hose wall.
Reinforcing materials are multi-layer fabrics or cord fabrics, single or multi-layer knitted, braided yarns and steel helixes.
③ SAE J20 R3 Heater Hose
For connection of heater systems to other components in cooling circuits of ground vehicles.
The reinforcement material consists of one or more layers of woven, knitted, braided or wound yarns.
④ SAE J20 R4 Universal Radiator Hose
Coolant circulation systems for vehicle engines.
The reinforcement material consists of one or more layers of woven, knitted, braided or wound yarns.
⑤SAE J20 R5 Universal Wire Supported Corrugated Hose
Used in vehicle engine coolant circulation system. Consists of corrugated sections with straight ends. The corrugated portion contains one or more helical wires.
The reinforcement material consists of one or more layers of woven, knitted, braided or wound yarns.
Contact as below:
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E-mail: lotus@chnhose.com