Torispherical heads

Type B
⌀ 1000–3600 mm

We manufacture torispherical heads Type B to agreed drawings with reference to GOST 34347-2017; strength calculations use GOST 34233.2-2017. Type B differs from A in crown and knuckle radii. Review the larger relative knuckle radius with the crown radius, including edge-region loads.

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Head dimensions and profile to GOST 34233.2-2017

Manufactured to GOST 34347-2017

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About the company

Type B torispherical heads are used in pressure vessels, oil and gas and chemical equipment, separators and receivers. Manufacturing since 2004; applicable documentation includes GOST 34233.2-2017 and 34347-2017. Diameter range 1000–3600 mm; the size cards confirm the applicable thickness combinations. The source category lists 3–22 mm, subject to the selected profile and drawing.

Director of Germes-Ural LLC
Roman Borisovich Gostyukhin

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Head dimensions
Type B

D = 1000–3600 mm
s = 3–22 mm; as specified
R = 0,9D
r = 0,17D

All sizes Type B

Torispherical head Type B — profile diagram

Typical dimensions of torispherical heads Type B

D, mm	s, mm	R, mm	r, mm	h1 and h2
1000	6–22	900	170	According to the drawing
1100	6–22	990	187	According to the drawing
1200	6–22	1080	204	According to the drawing
1300	6–22	1170	221	According to the drawing
1400	6–22	1260	238	According to the drawing
1500	6–22	1350	255	According to the drawing
1600	6–22	1440	272	According to the drawing
1700	6–22	1530	289	According to the drawing
1800	6–22	1620	306	According to the drawing
1900	6–22	1710	323	According to the drawing
2000	6–22	1800	340	According to the drawing
2100	6–22	1890	357	According to the drawing
2200	6–22	1980	374	According to the drawing
2300	6–22	2070	391	According to the drawing
2400	6–22	2160	408	According to the drawing
2500	6–22	2250	425	According to the drawing
2600	6–22	2340	442	According to the drawing
2700	6–22	2430	459	According to the drawing
2800	6–22	2520	476	According to the drawing
2900	6–22	2610	493	According to the drawing
3000	6–22	2700	510	According to the drawing
3100	6–22	2790	527	According to the drawing
3200	6–22	2880	544	According to the drawing
3300	6–22	2970	561	According to the drawing
3400	6–22	3060	578	According to the drawing
3500	6–22	3150	595	According to the drawing
3600	6–22	3240	612	According to the drawing

The size cards list thicknesses of 6–22 mm. The final configuration is agreed for the project. Radii refer to the company’s catalogue profile; heights and tolerances are specified in the drawing.

Selection and manufacturing of Type B

Type B manufacturing requires the crown-to-flange transition to be agreed for its own profile. A Type A checking template cannot be used merely because the mating diameter is the same. Edge preparation and straight flange length are specified separately in the drawing.

Type B checks cover the radii of the selected configuration, mating profile and finished thickness. Inspection datums for the crown and edge regions are agreed for acceptance. Checks of welded blanks follow the order documentation.

Materials

Carbon steels

20YuCh, 09G2S, St3sp5, St20, 17G1S

Aluminium alloys

AMg3, AMg5, AMg61 (1561), R-1407

Stainless steels

08(12)Kh18N10T, 10Kh17N13M2T, AISI 321, AISI 304, AISI 316Ti and Other

Titanium alloys

VT1-0, VT5, VT6, VT8, VT9, OT4-O

Applications of torispherical heads Type B

When designing tanks and vessels Type B is checked for the loads, material and equipment layout. Compare the radii with the vessel drawing and specify the finished component thickness.