Rubber Oil Suction & Discharge Hose 150PSI: Field Notes from the Yard

If you work around tank farms, bunkering berths, or on the truck rack at 3 a.m., you already know a good
rubber oil hose
is the quiet hero. To be honest, the stakes are higher than they look: spills, downtime, vapor management. Lately the trend is steadier demand with stricter audits—more EN/ISO box-ticking, better traceability, and a push for hoses that last longer under mixed fuels (with rising aromatics).

What is it exactly?

This model—Rubber Oil Suction & Discharge Hose 150PSI—comes from CHANGAN DISTRICT, SHIJIAZHUANG, HEBEI, CHINA. It’s a softwall build for suction and delivery of petroleum products with aromatic content typically up to ≈50% (real-world mix may vary). It’s mandrel-built, wire-helixed, and frankly, more forgiving on misaligned couplings than a lot of thermoplastic lines I’ve seen.

Construction and Process Flow

• Tube: NBR or NBR-blend, fuel-resistant, smooth bore for lower turbulence.
• Reinforcement: Multiple plies of high-tensile textile with embedded steel wire helix for full-vacuum service.
• Cover: CR/NBR blend, abrasion-, ozone-, and weather-resistant; wrapped finish (grippy, serviceable).
• Method: Mandrel-built extrusion, ply-up, wire placement, vulcanization, and post-cure trimming.
• Testing: Hydrostatic to 1.5× WP, vacuum test to 0.9 bar, electrical continuity, dimensional checks.
• Service life: Many customers say 3–5 years in mixed depot duty; harsh marine duty can be shorter.

Key Specs (typical)

Parameter	Value (≈)	Notes
Working Pressure	150 PSI (1.0 MPa)	Burst ≈ 3× WP
Size Range	2″–10″ ID	Other sizes on request
Temperature	-30°C to +80°C	Short peaks to +90°C
Vacuum Rating	Full vacuum (0.9 bar)	Wire helix support
Aromatic Content	Up to 50%	Per EN/ISO class guidance

Where it’s used (and why)

Tank truck loading arms, terminal manifold jumpers, marine dock hoses (short lengths), refinery transfer, and emergency bypass lines. The big advantages of a rubber oil hose here: shock absorption, good bend radius in tight racks, and decent chemical resilience to diesel, gasoline, biodiesel blends, and light crude.

Compliance, testing, and paperwork

Factory testing aligns with ISO 1823 and EN 1765 guidance, plus hydrostatic per EN/ISO norms. Material specs reference ASTM D2000 for elastomers. RoHS/REACH statements are available. Some orders add conductivity tests for static dissipation (smart move for gasoline vapor zones).

Vendor comparison (indicative)

Vendor	Lead Time	Certs	Testing	Price Band
ZSmartFlex (this model)	≈ 2–4 weeks	ISO/EN ref docs	Hydro, vacuum, continuity	Mid
Vendor A	3–6 weeks	EN 1765	Hydro only	Low–Mid
Vendor B	4–8 weeks	ISO 1823	Hydro + burst	Mid–High

Customization that actually matters

• Diameters: 2″–10″; lengths up to 60 m (site constraints apply).
• End fittings: Loose/swivel flanges, Camlock, NPT/BSP, safety clamps.
• Branding, color stripe, conductivity wires, and abrasion cover upgrades.

Mini case study

A coastal depot swapped old lines for this rubber oil hose on truck loading. Feedback after six months: fewer coupling leaks, easier handling in winter mornings, and one operator joked the wrapped cover “grabs the glove just right.” Not lab-grade data, but the downtime logs backed it up—transfer interruptions dropped noticeably.

Origin: CHANGAN DISTRICT, SHIJIAZHUANG, HEBEI, CHINA. Typical warranty and lifespan depend on media, duty cycle, bend radius, and storage—your mileage may vary.

References

1. ISO 1823: Rubber hose and hose assemblies for oil suction and discharge services.
2. EN 1765: Rubber hose assemblies for oil suction and discharge, including ship-to-shore.
3. ASTM D2000: Standard Classification System for Rubber Products.
4. REACH and RoHS compliance statements for elastomeric products (EU).