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Torispherical heads Types A, B and C
GOST 34233.2-2017, GOST 34347-2017
Ø 600–4200 mm
thickness 3–22 mm
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
Heads are used in pharmaceutical, chemical, food, petroleum and utilities equipment. Pressure, vacuum and atmospheric service are assessed for the complete vessel design. The head profile, material and thickness must meet the intended medium and operating conditions.
Manufacturing process
Cold forming and flanging shape the blank through successive operations without heating during the forming stage. Process settings and inspection establish the required profile and batch tolerances. The finished head joins the vessel shell through the specified circumferential welded joint.
Manufacturing stages
- Project preparation or review of the customer specification.
- Blank preparation for forming.
- Manufacturing uses presses and specialised forming tooling selected for the required profile and operation. The tooling and process sequence are agreed for the blank, material and dimensions.
- Annealing where specified by material and process requirements.
- Quality control department inspection.
Head types
The component type and profile are selected for the equipment design.
Torispherical heads. Applications include syrup preparation and storage, process and pressure tanks, petrochemical and utilities equipment. Torispherical Type A, B or C is selected by profile and equipment design requirements.
Spherical heads. Unflanged spherical heads can be used as closing components in piping, vessels and other specified equipment applications.
Elliptical heads. This profile is used in pharmaceutical, agricultural, construction and other equipment, with flange configuration and suitability defined by the project.
Shallow dished heads. Suitability for vertical pressure vessels is established by the equipment design and calculations.
Domed flanged heads. Applications include metallurgy, wood processing and other industries, subject to the equipment design.
Conical heads. Applications include silos, hoppers and other tanks. Suitability for pressure service is checked by design calculations.
Our advantages
- Our manufacturing equipment and inspection procedures support the specified geometry and quality requirements for individual and batch orders.
- Orders are manufactured at our own facility. Technical requirements are agreed directly for the particular component and production operations.
- Before handover, components undergo the inspection specified in the order. Marking, test records and certificates are agreed for the component or batch and project requirements.
- Oversized loads can be delivered across Russia. The route and schedule are agreed in the quotation.
Enquire about tank and vessel heads by phone or email. Our specialists will review the specification and prepare a quotation.
Request a quotation for a dished end
Send an enquiry and our manager will contact you to discuss the order details and prepare a quotation.
