Side-by-side
Passenger Stairs (PAS 3.2 HD) vs Watex Containerised UHP Water-Jetting Power Pack (runway rubber-removal pump unit)
Spec comparison for two products on Aviation Souk. Both compete in Ground Support Equipment (GSE).

Ground Support Equipment (GSE)
Passenger Stairs (PAS 3.2 HD)
by Ersel Technology
Towable ground-level boarding stair built for narrow-body aircraft turnarounds at remote stands and secondary gates.

Ground Support Equipment (GSE)
Watex Containerised UHP Water-Jetting Power Pack (runway rubber-removal pump unit)
by Watex (Nanjing Watex Tech Co., Ltd.)
Diesel-powered containerised UHP pump unit that supplies up to 2,780 bar to a towed or vehicle-mounted cleaning panel — the deployable power source for runway rubber removal.
| Cost of ownership | Passenger Stairs (PAS 3.2 HD) | Watex Containerised UHP Water-Jetting Power Pack (runway rubber-removal pump unit) |
|---|---|---|
| Price tier | — | — |
| Lead time (weeks) | ?–? | ?–? |
| Delivery | — | — |
| Install | — | — |
| GCC airports deployed | 0 | 0 |
| Certifications | 0 | 0 |
Specs
Technical specifications.
| Spec | Passenger Stairs (PAS 3.2 HD) | Watex Containerised UHP Water-Jetting Power Pack (runway rubber-removal pump unit) |
|---|---|---|
| Type | Towable (tow-bar) | — |
| Nominal sill reach | 3.2 m | — |
| Primary aircraft compatibility | Narrow-body single-aisle (B737, A320 family) | — |
| Chassis / structure material | Hot-dip galvanised steel | — |
| Handrail | Full-length both sides, sliding top section | — |
| Stabilisation | Screw-down ground jacks | — |
| Power | None (towed) | — |
| Max working pressure | — | 2,780 bar (40,000 psi) |
| Pump configuration | — | Three- or five-piston plunger |
| Pump efficiency gain vs standard | — | Up to +25 % |
| Diesel engine | — | Cummins (or Weichai / Volvo per spec) |
| Engine max speed | — | 1,900 rpm |
| Diesel consumption reduction vs standard | — | Up to −10 % |
| Water tank capacity | — | ~950 litres (250 US gal) |
| Tank material | — | 304 stainless steel, 3 mm laser-welded |
| Filtration | — | 4-stage, 200 gpm triple filters, 1 µm final stage |
| Control system IP rating | — | IP 65 |
| Vibration reduction (anti-vibration mounts) | — | Up to 50 % |
| Engine oil change interval | — | 1,000 hours |
| Frame finish | — | Galvanised anti-corrosion |
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