Torispherical heads

Type C
⌀ 1000–3900 mm

We manufacture torispherical heads Type C to agreed drawings with reference to GOST 34347-2017; strength calculations use GOST 34233.2-2017. Type C has its own crown and knuckle radius combination. Dish depth follows the agreed profile and suitability follows vessel calculations.

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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 C 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 1000–3900 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 C

D = 1000–3900 mm
s = 3–22 mm; as specified
R = 0,8D
r = 0,154D

All sizes Type C

Torispherical head Type C — profile diagram

Typical dimensions of torispherical heads Type C

D, mm	s, mm	R, mm	r, mm	h1 and h2
1000	6–22	800	154	According to the drawing
1100	6–22	880	169,4	According to the drawing
1200	6–22	960	184,8	According to the drawing
1300	6–22	1040	200,2	According to the drawing
1400	6–22	1120	215,6	According to the drawing
1500	6–22	1200	231	According to the drawing
1600	6–22	1280	246,4	According to the drawing
1700	6–22	1360	261,8	According to the drawing
1800	6–22	1440	277,2	According to the drawing
1900	6–22	1520	292,6	According to the drawing
2000	6–22	1600	308	According to the drawing
2100	6–22	1680	323,4	According to the drawing
2200	6–22	1760	338,8	According to the drawing
2300	6–22	1840	354,2	According to the drawing
2400	6–22	1920	369,6	According to the drawing
2500	6–22	2000	385	According to the drawing
2600	6–22	2080	400,4	According to the drawing
2700	6–22	2160	415,8	According to the drawing
2800	6–22	2240	431,2	According to the drawing
2900	6–22	2320	446,6	According to the drawing
3000	6–22	2400	462	According to the drawing
3100	6–22	2480	477,4	According to the drawing
3200	6–22	2560	492,8	According to the drawing
3300	6–22	2640	508,2	According to the drawing
3400	6–22	2720	523,6	According to the drawing
3500	6–22	2800	539	According to the drawing
3600	6–22	2880	554,4	According to the drawing
3700	6–22	2960	569,8	According to the drawing
3800	6–22	3040	585,2	According to the drawing
3900	6–22	3120	600,6	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 C

When manufacturing Type C, the crown and knuckle are checked against the Type C diagram. Radii and profile height cannot be changed independently while retaining the same designation. Straight flange, bevel and allowances are specified for the joint.

Acceptance of Type C includes checks of the specified radii and heights and the actual finished thickness. Opening and connection positions are checked against the documentation. Weld inspection methods are agreed for each blank.

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 C

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