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.
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.
