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Short-Head Casing

The compact body: lower head duty, shorter overall length.

Short-Head Casing

The compact body: lower head duty, shorter overall length.

Same volute family as the long-head casing with the nose barrel cut back. Lower head duty, but it fits where the long body does not — which on a packaged set is usually the deciding factor rather than the hydraulics.

It is the easier of the two to cast well. The draw is short, the metal does not have far to run, and the whole casting solidifies more evenly. At 100 pieces that shows up as fewer rejects rather than as a lower price.

Casting process	Vertical-line sand moulding on two lines (national patent)
Materials	Grey iron · ductile iron · WCB carbon steel · CF8M stainless
Machined features	Suction bore and register · joint face and bolt circle · discharge flange · foot
Minimum order	100 pieces
Certification	EN 10204 3.1 per heat, spectrometer results
Source of geometry	Your drawing, 3D file or a worn sample

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Casting Notes

What Is Difficult About This One

Every casting has one or two features that decide whether the batch repeats. On this part they are these.

Short draw, even solidification

The section thicknesses are closer together than on a long body, so there is less fighting between feeding the thick parts and not overheating the thin ones.

Register is still the reference

Short body or long, the bore that holds the impeller central is what gets measured first on the first article.

Foot cast integral

Bottom of the same draw, no loose pieces — which is what keeps the hundredth casting like the first.

Materials

Alloy Options

The same geometry is a different part in three different plants. Chloride content, abrasion and temperature drive the choice — not the name of the fluid.

Alloy	Grade	When it is the right choice
Grey iron	HT200 / HT250	Default for water duty. Damps vibration, machines easily, lowest cost.
Ductile iron	QT450 / QT500	When the duty is cyclic or the part takes shock. Tougher than grey.
WCB carbon steel	ASTM A216 WCB	Higher strength, weldable. For pressure-bearing bodies.
CF8M stainless	ASTM A743 CF8M	Chloride and corrosion duty — the cast equivalent of 316.

Enquiry

What to Send Us

These are the ones specific to this part. A drawing, a 3D file or the worn original covers all of them at once.

Item	Why it matters
Overall length limit	The reason for choosing short-head in the first place
Suction and discharge sizes	Thread or flange, and the orientation of each
Whether it must interchange with a long-head body	Sometimes the foot and flanges have to match the existing set