Motherwell Tank Protection

What Motherwell Tank Protection does

Motherwell Tank Protection (MTP) is a UK-based industrial manufacturer of safety-critical equipment for bulk liquid storage tanks. Founded in 1859 as Bold Iron Works and now operating as a wholly owned subsidiary of Motherwell Tank Holdings Limited from a custom-built factory in St Helens, MTP produces a comprehensive portfolio including pressure vacuum relief valves (PVRVs), pressure-only and vacuum-only relief valves, spring-loaded relief valves, end-of-line and in-line deflagration flame arrestors, emergency relief manways, gauge hatches, free vents, rim vents, mechanical float and tape level gauges, high-pressure float gauges, radar and servo level transmitters, and tank blanketing valves. Products are certified to ISO 9001:2015, ATEX Directive 2014/34/EU, the EU Pressure Equipment Directive, UKCA UKSI 2016:1107, SIL functional safety, and BASEEFA/SIRA measurement accuracy standards, positioning the company to compete in hazardous-area tank projects across petrochemical, refining, bulk storage, food and beverage, pharmaceutical, wastewater, and anaerobic digestion/biogas applications. Standard materials of construction span aluminium, carbon steel, and stainless steel, with units ranging from 2-inch to 36-inch flange sizes and pressure settings from a few millibarg to 500 Mbarg.

The business model is sales-led and project-based: pricing is quote-only, with free valve sizing consultation, direct customer engagement by phone, email, and field-engineer site visits, plus after-sales and maintenance services. Revenue is generated through direct sales to enterprise customers and through a curated international partner network of at least eleven named distributors covering Europe, the Middle East, and Asia-Pacific (Al-Zahem International Group, Alsatec SA, Athex BVBA, ATTATECH, Bray Controls Benelux, Flow Controls Trading FZE, Industrial Projects Technologies, Klinger International, Nu-SDI Union, OY SAATO, PVN Engineering). Marketing is content-driven via company website, blog, and organic social (LinkedIn, Facebook, Twitter). The company employs 11-50 people, has celebrated 150+ years of continuous operation, and reports serving 'thousands of customers' and 'international majors' worldwide, with recent commentary describing the current period as its 'best year ever' on the back of large breather-valve orders. Revenue is not publicly disclosed. Strategic direction has shifted toward biogas, biofuels, and bioenergy applications, alongside geographic expansion into the Middle East and Asia and product extension into electronic tank gauging.

Name

Motherwell Tank Protection

Legal name

Motherwell Tank Protection

Website

https://motherwelltankprotection.com

Company type

Private

Founded year

1859

Operating status

Operating

Headcount range

11–50 employees

Short description

Motherwell Tank Protection manufactures pressure vacuum relief valves, flame arrestors, level gauges, gauge hatches, and emergency manways for bulk liquid storage tanks, serving petrochemical, refining, food and beverage, biofuel, and wastewater operators globally from its UK factory.

Ownership category

akta.pro rank

Product category

Industrial Tank Protection Equipment

NAICS

Industrial Valve Manufacturing (332911), Metal Valve Manufacturing (33291)

SIC

Oil & Gas Field Machinery & Equipment (3533), Steam & Air-Conditioning Supply (4961), Gaskets, Packg & Sealg Devices & Rubber & Plastics Hose (3050)

akta.pro primary industry

Seals, Valves & Auxiliary Components (for Pumps/Compressors) (IMAHANAH)

akta.pro secondary industries

Chemical Tank Farms & Bulk Liquid Chemical Storage (TLALAHAH), NGL/LPG Storage & Fractionation Terminals (TLAGAKAE)

Keywords

• Tank protection equipment
• Pressure vacuum relief valves
• Flame arrestors
• Mechanical level gauges
• Storage tank fittings

Headquarters

HQ city

St. Helens

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Operations, Supply Chain, Personnel, Infrastructure, Marketing or Sales

Revenue model

1. Industrial Equipment Sales: Manufacture and sale of tank protection equipment including pressure vacuum relief valves, flame arrestors, level gauges, and tank fittings. Products sold directly to industrial customers with after-sales support and maintenance services.

Go-to-market motion1 record

Distribution channels2 records

Marketing channels4 records

Core offering

Motherwell Tank Protection manufactures and supplies a comprehensive range of tank protection equipment for bulk liquid storage tanks, including pressure vacuum relief valves, pressure-only relief valves, vacuum relief valves, spring loaded relief valves, emergency relief manways, end-of-line and in-line deflagration flame arrestors, gauge hatches, free vents, rim vents, mechanical float and tape level gauges, high-pressure float level gauges, radar level transmitters, servo level gauges, and tank blanketing valves. Products are offered in aluminium, carbon steel, and stainless steel, with ATEX and PED certified options for use across oil & gas, petrochemical, refining, bulk storage, biofuels/biogas, food & beverage, pharmaceutical, and wastewater treatment applications.

Product overview

Motherwell Tank Protection (MTP) is a manufacturer of industrial tank protection equipment, offering a comprehensive portfolio of pressure relief valves, flame arresters, tank gauging systems, and storage tank fittings. The product range includes Pressure Vacuum Relief Valves (PVRV), Pressure Only Relief Valves (PRV), Vacuum Relief Valves, Spring Loaded Relief Valves, Emergency Relief Manways, Vent Combination Arresters, End-of-Line and In-Line Flame Arresters, Gauge Hatches (Atmospheric, Lockable, Combination), Free Vents, Rim Vents, Mechanical Float and Tape Level Gauges, Tank Liquid Level Indicators, High Pressure Float Level Gauges, Radar Level Transmitters, Servo Level Gauges, and Tank Blanketing Valves. The products are used across industries including oil & gas, petrochemicals, chemicals, food, beverage, pharmaceuticals, biofuels, biogas, wastewater treatment, and bulk storage. Standard materials of construction include aluminium, carbon steel, and stainless steel. MTP operates as a wholly owned subsidiary of Motherwell Tank Holdings Limited and is accredited by the British Standards Institute (BSI).

Differentiator

Problem solved

Functional benefit

Products and services

• Pressure Vacuum Relief Valves (CNC380, CNC383, CNC385, CNC386) ATEX-approved pressure vacuum relief valves for tank protection, available in 2"-12" sizes, with pressure settings from 2 Mbarg to 500 Mbarg, in aluminium, carbon steel, or stainless steel, for petrochemical, chemical, and bulk liquid storage applications.
• Pressure Only Relief Valves (CNC381, CNC384) ATEX-approved pressure-only relief valves for storage tank overpressure protection, available in 2"-12" sizes and in aluminium, carbon steel, or stainless steel, for facilities that do not require vacuum relief.
• Vacuum Relief Valves (CNC382, CNC387) ATEX-approved vacuum relief valves for negative-pressure tank protection, available in 2"-12" sizes and in aluminium, carbon steel, or stainless steel, for facilities requiring only vacuum relief.
• Spring Loaded Pressure Vacuum Relief Valve Spring loaded pressure/vacuum relief valves with adjustable settings from 7 mbarg to 0.5 barg, ATEX-approved, available in 2"-12" sizes, for LNG tanks and floating roof covers requiring robust pressure and vacuum management.
• Emergency Relief Manways (CNC121) Emergency relief manways providing emergency venting for low-pressure storage tanks, available in 10"-36" sizes and materials such as carbon steel and aluminium, with custom flange options and testing to 140 Mbar.
• Pressure and Vacuum Emergency Manway (122 Series) Spring-loaded emergency manway that protects storage tanks from vacuum damage under negative pressure, available in 16"-24" sizes for bulk storage applications.
• Access Manway (CNC171) Lockable access manway providing secure entry to bulk storage tanks, sealing up to 2.5 psig, available in 10"-36" sizes for maintenance and cleaning operations.
• Vent Combination Arresters (CNC550) End-of-line vent combination arresters that prevent unconfined ignition from entering or leaving a tank venting system, ATEX- and UKCA-certified, for 2"-12" pipe sizes with replaceable elements.
• End-of-Line Deflagration Flame Arresters (CNC540) End-of-line deflagration flame arresters that prevent flame entry from the atmosphere into tank venting lines, ATEX- and UKCA-certified to EN ISO 16852:2016, suitable for pipes up to 12" with replaceable elements.
• Deflagration In-Line Flame Arrester Bi-directional in-line deflagration flame arresters that quench sub-sonic flame propagation in gas or vapour lines, ATEX- and PED-compliant, for pipes up to 12", with replaceable elements.
• CNC 101 Atmospheric Gauge Hatch Atmospheric gauge hatch providing tank access for manual level gauging, temperature measurement, or sampling on free-vented atmospheric tanks, with a free-lift design and safety foot pedal.
• CNC 102 Lockable Gauge Hatch Lockable gauge hatches providing gas-tight (up to 2.5 psig) secure tank access for manual level measurement, temperature, or sampling, with lockable handle, safety foot pedal, and non-sparking O-ring seal, in 4"-12" sizes.
• CNC 103 Combination Gauge Hatch Combination gauge hatch allowing manual gauging or sampling while providing pressure and vacuum relief, aluminium construction, 8" size, standard settings of 3.5" wg pressure and 0.865" wg vacuum.
• Tank Free Vents (CNC240/241) Free vents providing essential venting for atmospheric tanks to prevent pressure build-up, available in 2"-12" sizes in aluminium, carbon steel, or stainless steel, with stainless steel mesh screens and ANSI and DIN flanges.
• Rim Vent (CNC104) Rim vent providing low-pressure relief for floating roof storage tanks, aluminium construction with stainless steel mesh, standard 6" flange or threaded connection, set to open at 0.865" w.g.
• Combined Free Vents and Sampling Hatch (CNC141) Combined unit that provides tank access for sampling or dipping while allowing the tank to vent safely through the weatherhood, available in aluminium, carbon steel, and stainless steel, in 4", 6", and 8" sizes.
• Mechanical Float and Tape Level Gauge (CNC2570) Mechanical float-and-tape level gauges offering ±3mm tank level measurement with 1mm sensitivity, operating without power and suitable for weights & measures purposes, for fixed or floating roof tanks.
• Tank Liquid Level Indicator (CNC670) Float-operated liquid level indicators providing continuous visual tank content readings for fixed and floating roof tanks, with optional oil seal up to 8.5 w.g. (21.2mbar), optional high/low level switches, and volumetric or graduated measurement options.
• High Pressure Float Level Gauges (MTP 2580) High pressure float level gauges providing continuous and accurate (±3mm) level monitoring for pressurised storage tanks such as spherical and bullet tanks, with magnetic link drive, multi-sphere float, and optional digital readout.
• 8900D Radar Level Transmitter Radar level transmitter providing ±1mm accuracy for storage tanks, certified for hazardous areas, integrating with DCS/SCADA systems and supporting various tank designs with optional displays.
• 2800i High Accuracy Tank Servo Level Gauge Servo level gauge offering ±1mm accuracy for custody transfer tanks, ATEX-certified, with temperature profiling and integration options for modern tank gauging systems.
• Tank Blanketing Valve (400 Series) Tank blanketing valve maintaining positive pressure in storage tanks using inert gas to prevent contamination and vapor loss, available in 15mm to 100mm sizes, for chemicals, bulk storage, and pharmaceutical applications.
• After-Sales Service After-sales service supporting customers who have purchased MTP tank protection equipment, providing technical support and ongoing relationship management.
• Valve Maintenance Service Maintenance service for installed tank protection equipment, including valves and relief devices, supporting operational reliability and regulatory compliance over the equipment lifecycle.

Quantifiable outcome

• ±3mm level measurement accuracy for float gauges
• +4 more outcomes

Segments8 records

Ideal customer profiles2 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eleven partnerships are on record, tiered minor.

• Al-Zahem International GroupminorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section
• Alsatec SAminorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section
• Athex BVBAminorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section
• ATTATECH Co LtdminorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section
• BRAY CONTROLS BENELUX B.V.minorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section
• Flow Controls Trading FZEminorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section
• Industrial Projects Technologies CominorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section
• Klinger InternationalminorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section
• Nu-SDI UnionminorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section
• OY SAATO ABminorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section
• PVN EngineeringminorChannel Partner/ Reseller/ DistributorInternational distribution partner shown in partner logos section

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Direct peers

• Bifold Group (Rotex): Bifold/Orbit/Rotex manufacture pressure relief valves, solenoid valves, and fluid control equipment for oil & gas and process industries, directly overlapping MTP's safety-critical valve portfolio and serving similar hazardous-area applications.
• Elmac Technologies: Elmac is a specialist UK-based manufacturer of flame arresters and tank protection equipment, competing head-to-head with MTP's flame arrester lines for petrochemical, chemical, and biofuel storage applications.
• CIRCOR International (Groth, Enardo): Groth and Enardo are direct competitors to MTP in pressure vacuum relief valves, breather valves, end-of-line flame arresters, and tank hatches for oil & gas storage, with comparable ATEX-certified product lines and global EPC channel presence.
• Varec (Nijhuis Industries): Varec manufactures tank gauging equipment, flame arresters, and tank protection fittings for the oil & gas and aviation fueling industries, directly comparable to MTP's level gauges, flame arresters, and breather valves portfolio.
• Protego (Braunschweiger Flammenfilter): Protego is a leading global manufacturer of flame arresters, breather valves, and tank protection equipment, directly competing with MTP in end-of-line and in-line deflagration arresters for petrochemical and chemical storage.

Broad incumbents

• Endress+Hauser: Endress+Hauser supplies tank gauging instrumentation including radar and servo level gauges (±1mm), directly competing with MTP's 8900D and 2800i products while also offering a much broader process automation portfolio.
• Emerson (Fisher, Crosby, Anderson Greenwood): Emerson's Fisher and Crosby/Anderson Greenwood lines are global standards for pressure relief valves and tank protection, directly overlapping MTP's PVRV and pressure relief portfolio but serving a far broader installed base across process industries.

Regional players

• Kieselmann GmbH: Kieselmann produces industrial valves and fittings for the food, beverage, chemical, and pharmaceutical industries, overlapping with MTP's tank blanketing valves and pressure/vacuum relief offerings for hygienic and process storage.
• GOK Regler- und Armaturen-Gesellschaft: GOK manufactures pressure regulators and valves for LPG, heating, and industrial tank applications, primarily serving European markets; comparable to MTP's spring-loaded PVRV and pressure relief valves for bulk storage.

Emerging players

• Safe-T-Cube / MSA Safety: MSA and adjacent safety equipment providers offer flame detection and explosion protection systems used alongside MTP's flame arresters in hazardous tank farm environments, representing an adjacent safety ecosystem rather than direct valve competition.

Market position

Strengths4 records

Weaknesses4 records

Competitive moat5 records

Key risks5 records

Key highlights6 records

Customer concentration

• Xx.com/motherwelltp
• Facebookfacebook.com/breathervalves
• LinkedInlinkedin.com/company/motherwell-tank-protection

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Motherwell Tank Protection