ISO 7241-A Push-Pull Hydraulic Quick Couplings

Product Specification

Feature

JINGYE Fittings supplies JY-ISOA-PP ISO 7241-A Push-Pull Hydraulic Quick Couplings for tractors, agricultural implements and mobile hydraulic equipment. The series uses double-acting female sleeves and poppet valves. Key Product Advantages: 1. Five Sizes and Dedicated Push-Pull Socket Models The planned 1/4"–1" range includes JY-ISOA-PP-02-S, JY-ISOA-PP-03-S, JY-ISOA-PP-04-S, JY-ISOA-PP-06-S and JY-ISOA-PP-08-S. S identifies the special female socket; compatible male plugs are selected separately. Interface and port sizes are specified separately. 2. ISO 7241-1 Series A Mating Interface Series A male plug geometry, socket entry, locking groove and ball engagement support mating with dimensionally compatible ISO 7241-1 Series A counterparts. Pressure ratings and push-pull installation features are determined by the specific coupling assembly. 3. Double-Acting Push-Pull Sleeve Operation The female coupler uses a double-acting sliding sleeve designed for axial connection and release when installed in a suitable retaining bracket or bulkhead. Sleeve travel, return springs, axial clearance and retaining geometry are controlled to support repeated implement changes. 4. Spring-Loaded Poppet Double Shutoff Spring-loaded conical poppet valves in the socket and mating plug open during full engagement and reseat after separation. The double-shutoff arrangement retains hydraulic fluid in disconnected lines and supports routine hose changes. Poppet-valve separation may produce some oil loss; it is not a flush-face non-spill connection. 5. Ball Locking and Optional Breakaway Design Hardened locking balls engage the mating plug groove, while the sliding sleeve controls retention and release. Selected panel-mounted assemblies can provide a specified breakaway response to accidental axial hose pull, helping protect implement hoses and ports. Breakaway force depends on the installed bracket, sleeve and hose routing, not the ISO interface alone. 6. Pressure and Flow Selection by Size Comparable push-pull series provide reference working pressures of 300 bar at 6.3 mm and 250 bar at 10–25 mm. Reference rated flows across the five sizes are 12, 23, 45, 100 and 189 L/min; published maximum-flow references are 24, 46, 90, 200 and 280 L/min. Performance depends on the chosen configuration. 7. Carbon Steel, Hardened Parts and Sealing Precision CNC-machined carbon steel bodies and sleeves combine with hardened poppet valves, locking balls and wear components. Steel or stainless steel springs provide valve and sleeve return. NBR seals are suitable for compatible mineral hydraulic oils; FKM alternatives may be selected for other fluid and temperature requirements. Carbon steel finishes include 8–12 μm trivalent chromium zinc plating. 8. Panel Mounting and Hydraulic Port Options Selected push-pull sockets can be supplied with mounting features for tractor rear outlets, bulkheads and brackets. Installation geometry covers panel thickness, bracket retention, axial movement and hose clearance. BSPP, NPT and designated metric port options integrate with hydraulic lines, remote valves and implement hoses; body size and port size are specified separately. 9. Precision Inspection and Functional Testing JINGYE Fittings operates under ISO 9001:2015 quality management. Checks cover Series A mating dimensions, locking-ball engagement, double-acting sleeve travel, poppet stroke, thread gauges, sealing surfaces and coating thickness. Agreed tests may include leakage, coupling cycles, flow-pressure drop, proof/burst pressure, pressure impulse and installed breakaway force for applicable designs. 10. OEM Customization and Second-Source Supply Available engineering options include sleeve details, panel-mount hardware, BSPP/NPT/metric ports, seals, protective caps, coatings, product marking and private-label packaging. Drawings, mating plugs and installation samples assist dimensional matching. JINGYE Fittings supports mixed-SKU sourcing, sample evaluation, repeat OEM orders and alternative supplier programs. 11. Tractor, Agriculture and Mobile Applications Typical uses include tractor rear hydraulic outlets, agricultural loaders, harvesters, implements, trailers, forestry attachments, utility vehicles and mobile hydraulic equipment. Push-pull sockets are particularly useful where implements are frequently connected at fixed machine ports. Hydraulic hose assemblers and distributors can source replacement sockets and compatible Series A plugs.