DISHED HEADShape of head diversifies for its purpose. dished heads can be manufactured from Carboon Steel,Stainless Stell, or other special materials upon request.

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= 3.5th = 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 th = 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 th = 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 relationsHoweverR = 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.)