Grease Pump Hoses

The hose is the flexible segment between a pump that cannot move and a point that must be reached. This page covers that run end to end: the line itself in steel-braided and polyamide forms, the spring cover that protects it at bends, the reel that stores it, and the pre-assembled hose-and-fitting units that arrive ready to install.

Sizing here is stated, not implied: 8.6×4 mm and 11.2×6.3 mm tubes at 80 MPa burst, 6×4 and 6×1.5 mm polyamide, PA12 at 6 mm OD rated 70 bar semi-rigid to DIN 73378. Pressure class and bore decide the hose; the tables below carry both for every unit.

Two neighboring pages divide the same hardware differently — the pressure-hose page ranks lines purely by rating, and the pipe page covers rigid distribution tubing. Where a unit appears on those pages too, the rows say so.

Choosing the Run

Job on the run	Unit family	Stated sizing
High-burst feed line	Steel-braided hose, 8.6×4 tube, 11.2×6.3 tube	80 MPa burst
Polyamide distribution line	HP polyamide pipe, polyamide tubing, 6×1.5 tube	6×1.5 mm and up
Low-pressure semi-rigid	PA12 tube, 6 mm nylon pipe	70 bar, DIN 73378, -40°C to +100°C
Bend protection	Spring cover	Tube spring cover
Storage and reach	Hose reel	Industrial reel
Ready-made assembly	Hose and fitting unit, grease pump hoses	Pre-terminated

Hose and Tube Catalog

Catalog page	Stated spec
Steel-braided hose	8.6×4 mm, 80 MPa burst, centralized grease
8.6×4 mm HP tube	80 MPa blast pressure
11.2×6.3 mm HP tube	80 MPa burst
HP polyamide pipe	Industrial grade polyamide
Polyamide tubing	High-pressure polyamide
6×1.5 mm polyamide tube	6 mm OD, 1.5 mm wall
6 mm nylon pipe	6 mm OD / 4 mm ID, lubrication & pneumatic
PA12 tube 6×1.25	70 bar semi-rigid, DIN 73378, fuel & oil resistant
Spring cover	Covers tube at bends
Hose reel	Industrial lubrication reel
Hose and fitting	Pre-assembled unit
Grease pump hoses	Flexible lines for lubrication systems

Lines ranked purely by pressure class sit under high-pressure hoses; rigid distribution tubing under lubrication pipes; hose end terminations under grease hose fittings; and the pumps these hoses serve under grease pumps.

Grease Pump Hose FAQ

Which hose size does a central grease system use?

The 8.6×4 mm steel-braided hose and its 11.2×6.3 mm sibling, both stated at 80 MPa burst, are the centralized-system lines on this page — the larger bore for longer runs or higher output pumps. The PA12 semi-rigid tube at 70 bar serves the low-pressure branches where flexibility matters more than burst margin. Match the tube to the system pressure, then to the fittings already on the machine.

Polyamide tube or nylon pipe for distribution runs?

Both are thermoplastic lines; the difference on this page is stated duty. The polyamide units — 6×1.5 mm tube and the high-pressure polyamide pipe — are the pressure-side family, while the 6 mm OD / 4 mm ID nylon pipe covers lubrication and pneumatic duty in the same size class. Wall thickness, not material marketing, is what moves the pressure rating.

Why put a spring cover on a hose?

Because hoses die at bends. A tube spring cover takes the flex fatigue at the moving end — where the hose leaves the pump or enters a bearing — so the tube inside works straight and lasts. It is a small cost protecting the most replaced part of a lubrication system.

Is a hose reel just convenience?

On a maintenance round with twenty points, a reel is throughput: full reach at each stop, controlled rewind between them, and no hose left underfoot or draped over hot surfaces. The industrial reel cataloged here is hose management for exactly that duty — it stores the line, it does not change its rating.

Can the hose and fittings come pre-assembled?

Yes — the hose-and-fitting unit arrives terminated, and the grease-pump hose family is the flexible-line listing for pump packages. For custom lengths with specified ends, send the pump model and point list through the contact page and the assembly is built to that bill of materials.