Four tubing materials, one decision — chemistry, pressure, and how much the run flexes. PU for general air and constant-flex motion, nylon for oil / coolant / fuel and higher pressure, PE for low-cost utility runs, FEP/PTFE where nothing thermoplastic survives. Comparison table first, decision branch second. PU is the highest-volume tubing item in the category, anchored on Sang-A.
Tap any type to jump to its page. The Decision Guide further down asks three questions that funnel the spec to one of these.
Four materials cover the range a plant runs: PU, nylon, PE, and FEP/PTFE. The polymer, not the price, is what graduates the spec.
PU for general air and constant-flex motion; nylon for oil / coolant / fuel and higher pressure; PE for low-cost utility; FEP/PTFE for the rest.
Match the polymer to what the line touches and how it moves — get chemistry, pressure, and motion right and the material falls out.
PU on oil swells and fails; nylon on a constant-flex run cracks. The material has to survive both the chemistry and the motion of the run.
At heat and pressure, step to nylon (240-350 PSI). Confirm OD by caliper — 4 mm and 1/4" are not interchangeable.
One of the deepest stock positions in the building; cross-listings to Polyconn and Mantova cover PE, nylon, and the fluoropolymer edge.
Distributor-facing reading. The trade-off column is the one that closes the loop — every type buys something and gives something up. Knowing what each type costs you is how the right one gets on the quote without a callback.
Reading the brand bench column — the bar shows how many of SPC's tier slots carry an option at that product type. The four tubing materials each run two brands deep: Mantova and Polyconn cover PE, nylon, and FEP/PTFE, while PU pairs Polyconn with the anchor. Sang-A is the anchor on PU tubing — one of the three deepest stock positions in the building, alongside composite and brass PTC. Tubing is selected by chemistry and motion, not by cost — the bench depth follows the spec, not the price tier.
Draw a line from the customer's answer at the top to the type name at the bottom. This is the page distributors screenshot and send to a customer the day before a quote call — so the customer comes prepared with the answers, and the call is about the brand and the budget, not the basics.
If the customer answers most of these at the first call, the second call is the quote. If they can't answer any, the tubing are rarely the only spec gap — flag it and push for a site walk.
Distribution is the layer that turns a treated, regulated air supply into air at the actuator — and the layer that's invisible when it works and catastrophic when it doesn't. Every leak, every pressure drop, every blown hose, every machine-down call traced back to "the air just stopped" ultimately lives in this layer. A pneumatic system is a thousand-plus connections — header to drop leg, drop leg to FRL, FRL to manifold, manifold to valve, valve to cylinder, plus every hand-tool coupler in between — and each one is a candidate failure point. Industry audits consistently put facility-wide leak rates at 20-30% of compressor output, with the majority of those losses at fittings and joints, not at the equipment. Distribution is also where material spec meets regulatory and audit exposure — food contact, NSF certification, ATEX classification, DOT/FMCSA brake circuits, B31.3 instrumentation. Spec it right at the connection level and the rest of the system can deliver what it was designed to deliver; spec it wrong and the customer is patching leaks for the life of the plant.
Four flexible tubing materials — PE, PU, nylon, FEP/PTFE — matched to chemistry, pressure, and motion. PU is the highest-volume tubing item, anchored on Sang-A.
The fitting the tube connects to — composite, technopolymer, brass, stainless, NSF food-grade tiers. The OD must match the fitting.
→Push-to-connect bodies that also perform a function — rotary joints and stop fittings. The Sang-A functional-fitting line.
→Instrumentation double-ferrule and DOT air-brake — regulatory connection families for tube runs governed by code.
→Tool changeover at the hose end — industrial, safety, and plug halves.
→The plant header — extruded aluminum mains replacing legacy black iron, upstream of every tube drop.
→Downstream in Control & Valving — the valves the tube run carries air to at the manifold.
→Tell us the end-use, the rough flow, and what climate the unit would sit in. We'll come back with a configured quote — the right type, the right tier, and the upstream gear the warranty assumes.
—. We reply within one business day with pricing, lead-time, and configured parts.
