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.
Wales · intrinsically safe
Intrinsically Safe Mobile Phone in Wales
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. This page explains what to look for in an intrinsically safe mobile phone for Wales (Milford Haven Waterway), and where the IS-04Z1 stands against that list today.
Pre-launch · certification in progress · Launching Q4 2026
Marking targetEx ib IIC T4Intrinsic safety, Zone 1 / 21 design target · certification in progress
AvailabilityQ4 2026via authorised distributors
Search topicintrinsically safe
DeviceMobile Phone
RouteSpecification
WhereWales
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.
For the record, no certificate exists for the IS-04Z1 today. The programme is under way ahead of a Q4 2026 launch. A buyer's engineering review is separate from the certificate. Certification status. Place facts reviewed October 2026.
At a glance · intrinsically safe
Checklist: intrinsically safe mobile phone for Wales (Milford Haven Waterway)
| Check | What to look for | IS-04Z1 today |
|---|---|---|
| Level of protection | ia, ib or ic matched to the zone | ib, for Zone 1 |
| Entity parameters | Uo, Io and Po within the device limits | Published with the certificate |
| Accessories | Chargers and cases certified with the device | Defined at certification |
| Where it applies | Wales (Milford Haven Waterway): Refinery process units, LNG storage and regasification, Crude and product jetties | Classified by the site operator |
Product · Wales
The product behind this search: the SAMS IS-04Z1.
SAMS IS-04Z1
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.
- IP68 sealed
- 4,000 mAh battery
- 50 MP camera
- Android 16
- Zone 1 / Zone 21 design target
The site · Wales (Milford Haven Waterway)
Wales (Milford Haven Waterway) at a glance: who is there, what is classified
A short profile of the site and the kinds of classified area that matter for portable equipment.
Operators and companies on site
- Valero
- South Hook LNG Terminal Company
- Milford Haven Port Authority
Classified areas to expect
- Refinery process units
- LNG storage and regasification
- Crude and product jetties
- Tank farms
Local conditions · Wales (Milford Haven Waterway)
Conditions in Wales (Milford Haven Waterway) that affect handheld equipment
LNG
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.
Field notes · Wales (Milford Haven Waterway)
More about Wales (Milford Haven Waterway) that matters for portable equipment
Wales (Milford Haven Waterway): industry on the ground
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.
Wales (Milford Haven Waterway): infrastructure
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.
Wales (Milford Haven Waterway): projects and investment
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.
Wales (Milford Haven Waterway): logistics and access
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.
The term · intrinsically safe
What “intrinsically safe” means for a smartphone
Intrinsic safety limits the electrical and thermal energy in a circuit so that neither a spark nor a hot surface can ignite a gas or dust atmosphere, even when a fault occurs. The ib level, used for Zone 1, tolerates one fault. It is the usual way to make a handheld device that a worker carries continuously through a hazardous area.
The IS-04Z1 is designed on this principle for Zone 1 and Zone 21 (marking target II 2 G Ex ib IIC T4). Intrinsic safety is a design basis, not a certificate: certification is in progress and none has been issued yet.
In Wales (Milford Haven Waterway). Rounds at Pembroke cover process units and tank farms, while the LNG terminals involve storage tanks, regasification areas and jetty operations. A handheld designed for intrinsic safety suits those inspections, and also turnaround work where contractors travel in and need to record findings in the area.
The route · specification
Specifying an intrinsically safe mobile phone for Wales
A short checklist for anyone writing or reviewing the specification, with the IS-04Z1 status against each point.
Check on the paper
- Marking
- Equipment group, category, protection concept, gas group and temperature class, matched to the area drawing.
- Certificate and schedule
- A certificate number, issuing body and the schedule of conditions, not a brochure claim.
- Standards edition
- The IEC 60079 or national standard edition the certificate was issued against.
Check for the IS-04Z1
- Marking target
- II 2 G Ex ib IIC T4: a target, not yet a certificate.
- Certificate status
- IECEx, ATEX, UKEX and NEC 500 in progress; none issued.
- Operator approval
- Separate from the certificate and handled with the site operator.
Questions · Wales
Frequently asked questions
Can we buy an intrinsically safe mobile phone in Wales today?
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.
What does an intrinsically safe mobile phone in Wales cost?
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.
What does ‘intrinsically safe’ mean for the IS-04Z1?
The circuits are designed to limit energy so a spark or hot surface cannot ignite a gas or dust atmosphere, even with one fault (level ib, Zone 1). Certification of that design is in progress.
Which areas at Wales (Milford Haven Waterway) would use it?
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.
Is intrinsically safe the same as explosion proof?
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.
Do Welsh sites follow the same Ex marking rules as the rest of Great Britain?
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.
How does the Welsh climate affect devices used outdoors?
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.
What hazardous-area work is there in Wales?
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.
Related guides
Keep exploring
Related guides for Wales and for United Kingdom.
Industrial Mobile Phone Distributor in WalesSame place, different guide
IECEx Mobile Phone Distributor in WalesSame place, different guide
Rugged Mobile Phone Distributor in WalesSame place, different guide
Explosion-Proof Mobile Phone in WalesSame place, different guide
Ex-Proof Mobile Phone Distributor in WalesSame place, different guide
ATEX and IECEx Mobile Phone in WalesSame place, different guide
ATEX and IECEx Mobile Phone Distributor in EnglandElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in EdinburghElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in Northern IrelandElsewhere in United Kingdom
ATEX and IECEx Mobile Phone Distributor in LiverpoolElsewhere in United Kingdom
United Kingdom market guideCertification route and regulators
All guides for United KingdomEvery route we cover
Certification statusWhat is in progress
Enquiry · Wales (Milford Haven Waterway)
Ask about the IS-04Z1 for Wales (Milford Haven Waterway), 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.
Enquiry · Wales (Milford Haven Waterway)
Launching Q4 2026
Planning for Wales?
Send the zone and gas group of your site and we will reply with the datasheet and schedule.