Refining
The Pembroke refinery began operating in 1964 and has been owned by Valero since 2011. Cardiff terminal supply by coastal tanker comes from here.
The Milford Haven Waterway in Pembrokeshire is Wales' largest port and a major energy hub. It hosts Valero's Pembroke refinery and the South Hook and Dragon LNG terminals, so Zone 1 work arises at process units, tank farms and gas handling areas. If you are specifying an industrial mobile phone for Wales (Milford Haven Waterway), this page covers the markings, the approvals and the current certification status of the IS-04Z1.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. The SAMS IS-04Z1 is the intrinsically safe smartphone covered here for Wales (Milford Haven Waterway): pre-launch, designed for Zone 1 and Zone 21 (marking target Ex ib IIC T4), with certification in progress and no certificate issued.
Current position: certification in progress, nothing issued, launch targeted for Q4 2026. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ingress protection | IP rating for dust and water | IP68 design |
| Fleet management | EMM and MDM support | Android 16 with EMM and MDM |
| Explosion protection | A separate certificate and marking | In progress; not issued |
| Where it applies | Wales (Milford Haven Waterway): Refinery process units, LNG storage and regasification, Crude and product jetties | Classified by the site operator |

An intrinsically safe Android smartphone designed for Zone 1 and Zone 21 hazardous areas in Wales. It is pre-launch: IECEx, ATEX and NEC 500 certification is in progress ahead of the Q4 2026 launch.
The companies on site and the hazardous-area types a handset is likely to meet there.
The Pembroke refinery began operating in 1964 and has been owned by Valero since 2011. Cardiff terminal supply by coastal tanker comes from here.
South Hook, opened in 2009 with five storage tanks, is described as Europe's largest LNG terminal. With Dragon LNG, the two terminals can provide up to a quarter of UK gas demand.
Oil refining at Milford Haven began with the first oil terminal and refinery in 1960, and the waterway still carries the jetties, oil terminals and shore processing facilities of the oil and power industries.
Regasified LNG leaves Milford Haven through National Grid's South Wales Gas Pipeline to a distribution point at Tirley in Gloucestershire, so pipeline and compression sites run across south Wales.
By 2018 Wales generated over 3,864 MW of renewable energy from 68,728 projects, and the Welsh Government set a target of meeting 70% of electricity demand from Welsh renewables by 2030.
Milford Haven is the largest port in Wales and the third-largest in the United Kingdom, run by the Milford Haven Port Authority as a trust port that manages Milford Docks, Milford Marina and Pembroke Port.
“Industrial” describes a phone built for plant conditions: sealed, drop-resistant and manageable at fleet scale through Android Enterprise. It does not by itself mean the phone may enter a classified area. Only a device with a valid explosion-protection certificate and marking may do that.
The IS-04Z1 is designed to be both an industrial Android phone (IP68, 4,000 mAh battery, 50 MP camera, Android 16 with EMM and MDM support) and an intrinsically safe one. Its explosion-protection certificates are in progress and have not been issued.
In Wales (Milford Haven Waterway). Turnarounds at Pembroke and the LNG terminals bring contractors in from elsewhere, so MDM or EMM enrolment and a clean sign-in and return process matter. Operators run their own contractor approvals, which may include IT rules. Handsets would be charged in offices or control buildings away from tank and process areas.
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Not today. Until the certificates are issued the IS-04Z1 stays out of classified areas, and until launch there is nothing to purchase. You can ask for the datasheet and the certification schedule, or book a safe-area evaluation unit.
No price is published. While certification is in progress there is no list price and no committed lead time, and a supplier quoting a firm figure for an uncertified Ex handset is promising something it cannot stand behind. Indicative pre-launch pricing is issued in writing against a stated quantity and site.
Yes by design: IP68 sealing, a 4,000 mAh battery, a 50 MP camera and Android 16 with EMM and MDM support. The explosion-protection certificates are separate and still in progress.
Likely candidates are refinery process units, lng storage and regasification, crude and product jetties, tank farms. Which areas are classified, and to what zone, is set by the site operator's own area classification drawings.
Not exactly. Explosion proof is a broad everyday term; intrinsic safety is one protection concept, which limits energy so ignition cannot occur. Flameproof (Ex d) is a different concept that contains an explosion. The IS-04Z1 is intrinsically safe by design.
Yes, Wales is within Great Britain's product rules, where equipment for explosive atmospheres is normally supplied with UKCA marking and CE-marked ATEX equipment has been widely accepted under transitional arrangements. Check the current position and any site-specific rules with the operator before supplying handheld devices.
Wales is mild but wet and windy, with salt spray at coastal terminals such as Milford Haven. Ingress protection, corrosion resistance and condensation tolerance are more important than extreme temperature ratings. Ask the site about its own environmental requirements for portable electronics.
The Milford Haven Waterway in Pembrokeshire hosts Valero's Pembroke refinery, which began operating in 1964, and the South Hook and Dragon LNG terminals. Zone 1 work arises at process units, tank farms and gas handling areas. Confirm requirements with each operator's HSE and procurement teams.
Other guides for Wales, other places in United Kingdom, and the pages behind them.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Send the zone and gas group of your site and we will reply with the datasheet and schedule.