PVC Steel Wire Hose — Transparent, Spiral-Reinforced, Vacuum-Capable

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The construction: a steel spring inside a clear tube

PVC steel wire hose — also called spiral hose or wire-reinforced PVC hose — embeds a steel wire helix inside a transparent PVC wall. The wire stops the hose collapsing under vacuum — the duty the suction hose's corrugated wall performs on the intake side. The company describes the result as resistant to negative pressure, abrasion and ageing, with a small bending radius and excellent weather resistance — which is why this family is the clear hose this range offers for combined suction-and-delivery duty.

One transparency note, in line with how this site handles data: the source specification table expresses some pressure values as ranges that include negative figures — a vacuum-rating notation — and its summary line and its own FAQ give different temperature ranges. Rather than publish figures we cannot present cleanly, the table below reproduces the unambiguous data — bore, outside diameter, roll length and burst pressure — and working pressure for your bore, together with service temperature, is confirmed in the written quotation. That is the conservative way to buy this hose, and the factory's quotation is the document your own customers will rely on.

Published size table — excerpt (diameters, rolls, burst pressure)

Three different things are easily confused here, so this site keeps them separate. The source table's headline range runs from 1/4 in to 12 in. The per-size rows shown for it run to twenty-seven and top out at 10 in. The eighteen rows above are an excerpt of the source table; the remaining rows — 1-3/4, 1-7/8, 2-5/16, 3-1/2, 4-3/8, 4-5/8, 5-1/2, 6-5/16 and 7 in — can be quoted on request. Sizes above 10 in appear in the headline range only; for those sizes the per-size data for your order is confirmed in writing in the quotation rather than read from the rows shown. Two patterns in the rows shown are worth a buyer's attention: roll length shortens as bore grows, and burst pressure steps down with diameter, which is why pressure must always be quoted at a named bore — a point the blog comparison of steel-wire versus braided hose develops for buyers choosing between the two transparent constructions.

Applications and the food-grade option

The company lists this hose for suction and delivery of water, oil, powder, sand and gravel across industry, agriculture and engineering. It also describes a food-grade PVC material option suitable for milk, drinks, beer, jam and other foodstuffs. If your order depends on that option, name the foodstuff and your market's documentation requirement in the enquiry so the compound — not just the construction — is confirmed; the food-grade PVC hose guide on the blog explains what to ask any supplier about food-contact hose.

Minimums for this family are published at 500 m on the company's Alibaba storefront, with a reference band of about US$0.20 to 0.40 per metre, while the product page's FAQ states a usual MOQ of 3,000 m; as elsewhere on this site both figures are shown with their sources and the quotation settles the one that applies to your size. Free samples are offered for this family on the official site.

Steel wire hose or corrugated-wall suction hose — which one?

The published facts differ by construction: the steel-wire hose is transparent, carries a published small bend radius, and is listed for both suction and delivery; the corrugated-wall suction hose is listed with a transparent wall and semi-transparent options, over its corrugated outer wall. Which of the two a given run takes is settled against the duty in the enquiry. The blog comparison walks through the trade-offs duty by duty.

Can it handle vacuum?

Yes — resisting negative pressure is the core purpose of the embedded wire skeleton. State your vacuum level and bore in the enquiry so the rating is confirmed for that size in the quotation.

Why is working pressure not in the table?

The source table's working-pressure notation mixes delivery and vacuum figures in a way that invites misreading. Burst pressures, which are unambiguous, are published above; working pressure at your bore is confirmed in writing with the quotation.