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. An Ex-proof smartphone distributor in Wales (Milford Haven Waterway) would carry the IS-04Z1 to these buyers once certification completes.
Pre-launch · certification in progress · Launching Q4 2026
Short answer. Wales (Milford Haven Waterway) has no appointed SAMS distributor yet: the IS-04Z1 is pre-launch (certification in progress, no certificate issued, launch planned for Q4 2026), and distributor applications are open.
Status: pre-launch. IECEx, ATEX, UKEX and NEC 500 certification is in progress and no certificate has been issued; launch is planned for Q4 2026. Operator approval runs on its own timeline. Certification status. Place facts reviewed October 2026.
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Ex marking | Group, category, protection concept, gas group, temperature class | II 2 G Ex ib IIC T4 (target) |
| Gas group | IIA, IIB or IIC matched to the area drawing | IIC (target) |
| Temperature class | T-class below the ignition temperature of the gas | T4, 135 °C (target) |
| Where it applies | Wales (Milford Haven Waterway): Crude and product jetties, Tank farms, Refinery process units | 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.
In 2012 the Milford waterway was announced as an Enterprise Zone because of its importance to the energy sector, and parts of it lie within the Pembrokeshire Coast National Park with protected sites.
Wales produced 30.2 TWh of electricity in 2018 and consumed 14.9 TWh, making it a net exporter, with gas generation at Baglan Bay and wind at Cefn Croes among its mix of plant.
Airbus Broughton in the north-east employs over 6,500 people, mostly in manufacturing, and is responsible for wing assembly for most Airbus aircraft, so composites and solvent areas exist alongside heavy engineering.
Two LNG terminals, South Hook on a former refinery site and Dragon LNG on a former Gulf refinery site, were built from 2006 and could eventually supply about 25% of the UK's gas needs.
“Ex-proof” is shorthand for equipment carrying an explosion-protection marking (the Ex mark) that matches the area it enters. The marking states the protection concept, gas or dust group and temperature class, and it must be backed by a certificate issued by a recognised body, so a phone described as Ex-proof should come with a certificate number you can check.
The IS-04Z1 is designed to carry the marking II 2 G Ex ib IIC T4. That is a target: certification is in progress, no certificate has been issued, and SAMS will publish the certificate numbers when they exist.
In Wales (Milford Haven Waterway). A marking check on the waterway would compare zone maps for LNG handling, where the gas is mainly natural gas, with refinery areas that handle a wider range of hydrocarbons. IIC marking offers margin. The IS-04Z1 target marking is II 2 G Ex ib IIC T4, pending certification; the operator decides.
SAMS is appointing authorised distributors ahead of the Q4 2026 launch. No territory has been granted for Wales (Milford Haven Waterway) yet and applications are reviewed company by company. Because a certified Ex device cannot be opened by an ordinary phone workshop without invalidating its certificate, SAMS looks for partners who can provide competent technical support and after-sales service locally.
No. Nothing can be bought or taken into a classified area today: certification is in progress and launch is planned for Q4 2026. What is available now is the datasheet, the written certification schedule and evaluation units for safe-area use.
SAMS has not published a price. Any figure you are offered for an uncertified Ex phone should be treated with caution; written indicative pricing is available for a defined quantity and site.
The marking target is II 2 G Ex ib IIC T4. It becomes a marking only when the certificate is issued; until then it is a design target.
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.
Apply through the distributor page with your company details and the territory you cover. SAMS reviews applications company by company and has not yet granted a territory for Wales (Milford Haven Waterway).
English is normally sufficient for industrial site documentation in Wales, although some public-sector bodies use bilingual material. For plant equipment, operators typically require English manuals and safety information, but confirm the expectation with each site's procurement team.
The Milford Haven Waterway in Pembrokeshire is the best-known cluster, with oil and LNG terminals, jetties and processing plants, and there are gas pipelines, power stations, chemical works and fuel depots elsewhere in south and north Wales. Zoning is site-specific, so ask each operator for area drawings.
The waterway lies at the western end of Wales, so contractors often travel in for turnarounds, and equipment must arrive and be signed in on schedule. Plan delivery, charging and device enrolment before the work starts, and ask each operator how contractor equipment is checked on arrival.
More on Wales, and on other places in United Kingdom.
Tell us what you need to equip and where. The SAMS team answers by email with the datasheet and where each certification route stands.
Tell us the zone, gas group and operator. We will send the datasheet and the certification schedule.