AJ TRIPLE OFFSET VALVE: THE ESSENTIALS
AJ TRIPLE OFFSET VALVE:
THE ESSENTIALS
DESIGN PRINCIPLES
The AJ Series Quarter Turn, triple offset valve, conceived to totally overcome friction during 90° rotation, features three offsets as part of an asymmetric design with a metal-to-metal sealing
PetrolValves’ experience and engineering capabilities have been the gateway for the development of the AJ Series, a triple offset, quarter turn, metal sealing, zero leakage bidirectional valve.
This innovative product is characterized by a unique geometry, able to respond to the stringent needs of Customers: a highly technological valve, guaranteeing excellence in performance, and a high degree of reliability over time.
A wide variety of industrial applications – like Oil & Gas processing, petrochemical, LNG storage and transportation, offshore platforms, chemical / petrochemical processes, power generation – and functions such as isolation, on-off, control, high cycling, quick acting, HIPPS – will largely benefit from the installation of AJ Triple Offset valve, which can be employed in temperatures ranging from low to cryo to high, and suitable for pressure rating up to class 900.
DESIGN CONFIGURATIONS
| Configuration | Temperature Range |
|---|---|
| Primary Configuration | From -29 to +425°C (WCB); From -60 to +450°C (CF8M) |
| Cryogenic Configuration | Down to -196°C |
| High Temperature Configuration | Up to +800°C |
DESIGN STANDARDS
| Specification | Details |
|---|---|
| Size Range | From 3" to 112" |
| Pressure Ratings | From ASME Class 150 to 900; EN 1092-1 from PN 10 to PN 160 |
| Body Styles | Double Flanged, Lug, Wafer, Buttweld |
| Materials of Construction | WCB, CF8M, CF3M, LCB/LCC, WC6, WC9, C5, C12, Duplex and SuperDuplex, Nickel and other Special Alloys |
| Design | ASME B16.34, API 609, EN 593, EN 12516 |
| Face to Face | ISO 5752, API 609, EN 558, ASME B16.10 |
| Flange Drilling | ASME B16.5, ASME B16.47, EN 1092-1, ISO 7005 |
| Testing | API 598, ISO 5208, EN 12266-1, API 6D, IEC 60534-4 |
| Firetested To | API 607, API 6FA |
| Compliance With | Pressure Equipment Directive 2014/68/UE |
| Quality Management System | ISO 9001 |
| Environmental Management System | ISO 14001 |
| Occupational Health and Safety Assessment System | OHSAS 18001 |
| Fugitive Emissions | ISO 15848 |
DESIGN FEATURES
- Seat hardfacing with Stellite® gr.21, protecting the seat from damage of use and abrasion
- Low emission graphite packing, fully adjustable. Fugitive emission are greatly reduced
- Shaft is blow-out proof in compliance with API 609
- All metal construction, inherently fire safe by design
- Absence of cavities in the valve body.
No deposits of any fluid particulates: smooth operation is ensured. - Accurate spotfacing on flanges, to facilitate valve installation and boltings tightening
DESIGN FEATURES
- Seat hardfacing with Stellite® gr.21, protecting the seat from damage of use and abrasion
- Low emission graphite packing, fully adjustable. Fugitive emission are greatly reduced
- Shaft is blow-out proof in compliance with API 609
- All metal construction, inherently fire safe by design
- Absence of cavities in the valve body.
No deposits of any fluid particulates: smooth operation is ensured. - Accurate spotfacing on flanges, to facilitate valve installation and boltings tightening
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