Body-side hydraulics live on a chassis that flexes, in weather, with a mixed bag of thread standards on one build. We supply the valves, fittings and hose pipes for those circuits, and we are direct about what falls outside them.
The flexible run from the chassis-mounted valve to a moving hoist. High flex, constant abrasion against the subframe, and the single most replaced assembly on a tipper.
EN 853 2SN · EN 857 2SCA person reads it, not an auto-responder. If it is something we can supply well, we say so and quote it. If it sits outside what we do, or if we cannot hold the specification you need, we tell you that plainly and up front rather than stretching to fit, and where we can we will point you toward a better route. You get a straight answer either way, within one business day.
None of these are random. Each has a mechanism, and each has a standard that tells you how to specify against it.
Hose rubbing on hose, on structure, and on the ground. Once the cover is breached the reinforcement corrodes and burst follows, usually well before the assembly's rated life.
A single body-builder can face NPT on North American chassis, BSP on Asian pumps and valves, JIC on hose ends, ORB on pump and valve ports, and metric 24° cone on European valve blocks. Cross-threading a JIC nut into an ORB port is a frequent, leak-generating mistake.
The chassis flexes against the body under load and over rough ground. Any hose crossing that interface sees movement the rest of the circuit never does, and it fails first.
Liftgates, hook-lift locks and tarp systems run at modest pressure but enormous cycle counts. The hose fails by flex fatigue and cover cracking long before anything approaches a burst rating.
Assemblies built from one maker's hose and another maker's ferrule and fitting compromise coupling retention. Major manufacturers restrict their crimp data to their own combinations and disclaim liability otherwise.
Every hose change in the field is an ingress event. Particles at 4 µm and above attack proportional and servo elements; 6 µm and above accelerates pump and cylinder wear.
This is an orientation map, not a parts list. It shows which of our product families sit where on tipper bodies, hook-lifts and work trucks, so you can see quickly whether your requirement is one we can serve, and where it is not.
We work to your specification. Send the size, material, thread standard, pressure rating and quantity, or a drawing or sample, and we confirm everything in writing before production. If we cannot hold what you need, we will say so rather than guess. Ratings and sizes referenced anywhere on this site are typical reference values.
Published so you can check a specification without calling us. Where your requirement names one of these, quote it in your RFQ and we will confirm against it, or tell you if we cannot.
Confirmed specification before production, consistent construction across repeat orders, and MOQ and price breaks stated up front. Anything outside what we can hold is flagged at quotation, not after the PO.
Supply to approved drawing or sample, traceability through production, QA and dimensional testing before dispatch, and export documentation handled end to end.
RFQ response within one business day, a defined spares list per body type, and honest lead times rather than optimistic ones that slip.
Dimensional consistency across batches, matched hose and ferrule pairings, full export documentation, and third-party inspection welcomed and coordinated.
We supply hydraulic valves, fittings and hose pipes. Where your requirement sits inside that, we would love to take it on, and we will tell you exactly what we can hold and what we cannot.
Where it sits outside, you will hear that from us up front, not three weeks into a quote. And if you want, we will point you toward a route that is more likely to work. No pitch attached to that answer, and no hard feelings if you come back later.
Not an auto-responder chain, and not a queue.
Including the answers that are a no.
What we can hold, and what we cannot, in writing.
NDA on request, handled with discretion.
They protect different things and are routinely confused. The main relief sits in the inlet section and protects the pump from over-pressure. A circuit relief protects the cylinder in a specific circuit. Fitting the wrong one, or setting one and assuming it covers both jobs, is a common and expensive mistake on tipper and dump-body hydraulics.
The hoist feed is a flexible run from a chassis-mounted valve to a moving body, so it needs to tolerate flex and abrasion against the subframe more than it needs an exotic pressure rating. Two-wire braid to EN 853 2SN is the common construction, with compact braid to EN 857 2SC where the subframe leaves no room for a standard outside diameter.
No. JIC to SAE J514 and ORB to SAE J1926 share the same UN/UNF thread form but seal completely differently. JIC seals on a 37° metal cone; ORB seals on an O-ring compressed against a machined boss face. Assembling one into the other will not seal reliably and can damage the port.
Usually not for the reason people assume. The three real causes are abrasion where the hose rubs the body or subframe, relative motion where the hose crosses the chassis-to-body interface, and routing that violates the minimum bend radius so the inner tube cracks. SAE J1273 covers routing and clamping; SAE J343 covers minimum bend radius.
Both are tapered at the same 1:16 rate, but the thread form angle differs, 55° for BSP and 60° for NPT. In several common sizes they will screw together and appear correct, then weep under pressure because contact is incomplete. BSPP, by contrast, is a parallel thread that seals on a bonded seal against the port face, so without that washer it will not seal at any torque.
We supply the hose, the fittings and the valves. Send the pump and valve port standards, hose lengths, end types and working pressure and we will confirm what we can hold against it. Where a component in the kit is outside our range we will say so rather than substitute something and hope.
Cycle count, not pressure. Liftgates and hook-lift locks run at modest pressure but cycle enormously, so the hose fails by flex fatigue and cover cracking rather than by burst. Specifying by impulse grade under ISO 18752 reflects that duty far better than a pressure rating alone.
Yes. Mixed-origin chassis, pumps and valve blocks mean BSP, NPT, JIC, ORB and metric 24 degree cone all turn up on one build. Adapters and reducers across those families are a core part of our range. Send the port standard on both sides and the pressure rating.
Yes, and that is the normal route. Share a drawing, a specification or a sample and we confirm dimensions, material, thread standard and pressure rating in writing before production. Where a requirement is beyond what we can reliably hold, we say so at that point rather than after the order.
Tell us anyway. We supply hydraulic valves, fittings and hose pipes. If your requirement sits inside that we would like to take it on, and we will tell you exactly what we can hold and what we cannot. If it sits outside, you will hear that from us up front rather than three weeks into a quote, and where we can we will point you toward a route more likely to work.
Size, material, thread standard, pressure rating, quantity and destination country, or simply a drawing or sample. If it is something we can supply well we will quote it. If it is not, we will tell you that instead, and point you somewhere more useful where we can.
