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Monobloc valve


Soft Seated
Data Sheet

Metal Seated
Data Sheet

Magival ModelMG30
Design- 2 or 3 pieces construction
- Screwed body
- According to ASME B16.34
Size- From 1/4” to 4” full and reduced bore
Rating- From 800 PSI to 6000 PSI
Ends- RF in according to EN 1092-1
- RF in according to ASME B16.5
- BW or PE in according to ASME B16.25
- SW in according to ASME B16.11
- NPT or GAS in according to ASME B1.20.1
Materials- Carbon steel
- Stainless steel
- Duplex
- Superduplex
- Incoloy

All materials are from barstock or forged
Insert- SOFT SEATED: rptfe – peek – derlin - devlon
Operator- Manual (lever)
- Bare stem
- Actuated (pneumatic or electric)
Main Features- Side entry ball valve
- Fire Safe designed according to API 607, ISO 10497 and API 6FA
- Fugitive Emission design in according to ISO 15840-1 and API6D
- Antistatic device
- Antiblow-out stem
- Test in according to API 6D QSL 1
- Face to face according to Magival Standard
Additional Features- Locking Device
- Stem extension
- Jacketed upon request
- Nace requirement
- Electroless Nickel plating
- ISO 5211 top work drilling
- Special bore diameters available upon request

Monobloc valve


Magival Valves produces a wide range of ball valves, especially valves for Oil&Gas, gas valves.
Monoblock valve is built from a body onto which 2 or 3 pieces are screwed, available in the full and reduced bore variant, and their nominal diameter varies from 1/4″ to 4″. Versatile and suitable for any type of processing, monobloc valve is the type of product that finds its natural use as a valve for Oil&Gas in industrial plants.

Carbon steel and stainless steel are the main materials used for the production of monobloc valve, to which are added duplex, super duplex and inconel. Whatever the type of material used, all our products are made with metals deriving from bar or forgings.


The ends of the monobloc valve can be threaded, prepared for socket welding or for butt welding.
The internal insert of Monoblocks can be either with a soft seat in RPTFE, PEEK, DERLIN or DEVLON, or with a rigid metal seat. The monobloc valve can be operated manually by lever or, alternatively, the stem can be bare, prepared for the assembly of a pneumatic or electric actuator.
We give the opportunity to purchase these valves designed to be locked in order to ensure greater system safety.

The gas valves end-to-end is a Magival standard, but there is also the possibility to supply this type of valve with any type of end to end.
The monobloc valve of our production is also available with stem extension and jacket; the production of special diameters is also possible on request.
The Fire Safe is designed according to API607, ISO 10497 and API 6FA, while the Design Fugitive Emission according to ISO 15840-1 and API6D. Tests are done in accordance with API 6D QSL 1.
Magival Valves’ quality program is focused on continuous improvement and is continuously reviewed and audited by internal staff, external inspectors and the most important engineering companies in the world.

Our monobloc valves and our Oil&Gas valves are 100% Italian valves. Follow us on LinkedIn to stay updated on our news, or go to the page of contacts.