The bolted joint in a hose programme
Most joints in a hose programme are made and broken by hand — camlocks levered shut, clamps driven down — but where a hose set meets a pump casing, a tank outlet or a fixed line, the joint is a flange: two flat faces, a gasket between them and a ring of bolts. The company's couplings line lists flanges among its entries, between the camlock couplings that head the line and the air hose couplings and clamps — the whole line is set out on the hose couplings page. A flange coupling in this context is the hose-side half of that bolted joint: a flange face with a tail the hose clamps or couples onto. Whether such a coupling is offered for a given hose in this range, and in what form, is a fact the enquiry confirms.
General background, stated as general knowledge rather than company data: a flange's bolt circle, the number and size of its bolt holes and its face dimensions are all fixed by the standard the flange was drilled to. That is why a flange is never specified by bore alone. The facts that make two flanges meet are the standard or drilling pattern, the nominal bore, the bolt circle and hole count, and the pressure class of the joint — and they are facts about your pipework, which the enquiry carries and the quotation answers.
What a flange enquiry states, and what it confirms
- The mating flange: its standard or drilling pattern, nominal bore, bolt circle and hole count — measured from the equipment or its documentation, not estimated from the hose.
- The hose side: which hose the flange terminates — build, bore and joint method — so tail and hose arrive as one specification.
- Pressure class of the joint: the working pressure the bolted joint must hold, stated against the pump or line it connects to.
- Material and gasket: the flange material offered and whether gaskets are supplied with it, both stated in the quotation.
- Fixed or swivel: whether the flange is fixed to the tail or free to rotate for bolt alignment — a practical fact worth settling before, not during, installation.
No flange sizes, standards or materials for this entry are published in the company's data, so none is printed here — the same position the couplings page takes for the line as a whole. What the listing establishes is that flanges are part of the fittings range this manufacturer offers with its hose; what a purchase needs beyond that — pattern, bore, class, material — is written per order. Send the mating flange's facts with the hose facts in one enquiry, and the quotation can be checked against the pump house wall rather than against a guess.
Will these flanges bolt to my pump?
Only if the drilling pattern and bolt circle match your pump's flange. State the mating flange's standard, bore and bolt pattern in the enquiry and ask for the match to be confirmed in the written quotation.
Are gaskets and bolts supplied?
State whether you need gaskets and bolt sets with the flanges in the enquiry; what accompanies this entry is confirmed per order and stated in the quotation.
Can a flange terminate a layflat hose?
A flange tail is a standard way to land a hose set on fixed pipework. State the hose build and bore and the mating flange's facts in one enquiry, and have the complete joint — flange, tail and clamping — confirmed as one specification.
Request a Quotation
Send the hose family, bore size, working pressure, length per roll and total quantity. MOQ, packing and lead time are confirmed in the written quotation for your exact specification. If the hose will be supplied as a finished assembly, name the coupling standard you need (for example camlock type and size, flange or thread) — or state that you need bare hose only.