Dished Heads

Vertex Engineer also offers dished head forming services. We make a variety of heads from many different types of materials such as carboon steel, stainless steel, etc.

GEOMETRIC RELATIONS

OD = Outside Diameter,     Id = Inside Diameter,     t = Wall Thickness,     SF = Straight Flange
R = Crown Radius,     r = Knuckle Radius,     h = Height of Dished Portion (Straight Flange not incl.),     IH = Total Inside Hight

TYPE	PICTURE	Standard	DETAIL
STANDARD FLANGE DISHED HEADS (SD-TYPE)		R = ID. R = 0.1 ID. SF= 3.5t h = 0.1937 ID	Up to O.D. of 5,000 mm. and up to a wall thickness of 25 mm. cold-formed(dished and flanged) and heat-treated if so desired. With and O.D. in execess if 5,000 mm. and up to a wall thickness of 30 mm. consisting of a spherical crown and segments.
DEEP DISHED HEADS (DD-TYPE)		R = 0.8 ID. R = 0.154 ID. SF= 3 t h = 0.255 ID	Up to O.D. of 3,700 mm. and up to a wall thickness of 25 mm. cold - formed(dished and flanged) and heat - treated if so desired. With an O.D. in excess if 5,000 mm. and up to a wall thickness of 25 mm. consisting of a spherical crown and segments.
ELLIPSOIDAL DISHED HEADS (ED-TYPE)		R = 0.9045 ID. R = 0.1727 ID. SF= 3 t h = 0.25 ID	Up to O.D. of 3,700 mm. and up to a wall thickness of 25 mm. cold - formed(dished and flanged) and heat - treated if so desired. With an O.D. in excess if 5,000 mm. and up to a wall thickness of 25 mm. consisting of a spherical crown and segments.
NON-STANDARD FLANGE DISHED HEADS (ND-TYPE)		Non-standardized relations	Dimensions on request
FLANGED ONLY HEADS (FH-TYPE)		Non-standardized relations	Of O.D. up to 8,000 mm. and wallThickness up to 25 mm.
PLATE-TYPE HEADS (PH-TYPE)		Non-standardized relations	Up to an O.D. of 7,000 mm. and a wall thickness of up to 25 mm. cold-formed (dished and flanged) and heat-treated if so desired.
DISHED ONLY HEADS (DR-TYPE)		Non-standardized relations	Up to an O.D. of 8,000 mm. and a wall thickness of up to 30 mm. cold-formed (dished) and heat-treated if so desired.
DIFFUSER HEADS (DH-TYPE)		Non-standardized relations However R = min 1.3 ID	Up to an O.D. of 7,000 mm. and a wall thickness of up to 25 mm.(Producible types on request)
CONICAL HEADS (CH-TYPE)		Method of providing the knuckle radius and fitting dimension non-standardized	Up to an O.D. of 8,000 mm. and a wall thickness of up to 35 mm. (Flanging of large and small ends on request.)