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.)