Seetru

What Seetru does

Seetru Limited is a privately held UK manufacturer of pressure-safety equipment, founded in 1949 in Bristol and operating continuously for over 75 years. The company designs and manufactures safety relief valves, liquid level gauges (sight gauges and magnetic float by-pass gauges such as the Seemag® G35), change-over valves, pressure-and-temperature relief valves, and ancillary valves such as check valves and air-start valves. Core technical differentiation rests on the proprietary Rock-Seal™ sealing technology and LGS® dual-guided spindle architecture, claimed to deliver repeatable bubble-tight shut-off across liquid, gas, steam, and cryogenic media, with pressure ranges from 0.2 bar up to 1100 bar for hydrogen-rated variants. Products are offered in bronze, brass, and stainless steel with threaded, flanged, or weld-end connections.

Seetru generates revenue through direct one-time sales of manufactured valves and gauges, supplemented by distribution of complementary pressure-regulating products from SCHLEY ARMATUREN GMBH. Go-to-market combines direct field sales supported by technical sales engineers, a global distributor network providing native-language local support, the Seetru Direct e-commerce storefront offering same-day despatch on stock items, and a separate Seetru Engineering Services aftermarket and compliance-testing arm. Pricing is quote-based and not publicly disclosed.

The customer base is enterprise and spans regulated industrial verticals including oil and gas, petrochemical, marine and offshore (DNV, ABS, NKK, BV, RINA, LR-classed), hydrogen generation and fuel cells, refrigeration and cryogenics, steam, hot water and solar heating, and water and wastewater (WRAS). The company carries CE-marking as a Category IV Safety Accessory under PED 2014/68/EU and UKCA under PE(S)R, with ASME/NB and ASME BPVC certification for North American market access. Headcount is in the 11–50 band and financial details are not publicly disclosed.

Name

Seetru

Legal name

Seetru Limited

Website

https://seetru.com

Company type

Private

Founded year

1949

Operating status

Operating

Headcount range

51–100 employees

Short description

Seetru Limited is a UK-based, privately held manufacturer of safety relief valves, liquid level gauges, and ancillary valves, founded in 1949 and serving enterprise customers in hydrogen, oil and gas, marine, refrigeration, steam, and water industries globally from Bristol.

Ownership category

akta.pro rank

Product category

Industrial Safety Valves and Liquid Level Gauges

NAICS

Industrial Valve Manufacturing (332911), Metal Valve Manufacturing (33291), Other Metal Valve and Pipe Fitting Manufacturing (332919)

SIC

Oil & Gas Field Machinery & Equipment (3533), Steam & Air-Conditioning Supply (4961)

akta.pro primary industry

Pressure Management & Overpressure Protection (Regulators, Relief Valves, OPS) (EUAJADAF)

akta.pro secondary industries

Valves & Cartridge Valves (Directional, Pressure, Flow Control) (IMAHAGAE), Pump & Compressor Packages (Skids, Booster Sets) (IMAHANAG), Refrigeration Components & Controls (Compressors, Valves, Sensors) (IMAHAKAH)

Keywords

• Safety relief valves
• Liquid level gauges
• Pressure relief valves
• Industrial ancillary valves
• Change-over valves

Headquarters

HQ city

Bristol

HQ country

United Kingdom

HQ region

Europe

Offices1 record

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Supply Chain, Personnel, Operations, Technology or R&D, Infrastructure

Revenue model

1. Safety Relief Valves and Liquid Level Gauges: Manufacture and sale of safety relief valves, liquid level gauges, and ancillary valves for industrial applications. Products available with various material options (bronze, brass, stainless steel) and connection types (threaded, flanged, weld end).
2. Same-Day Despatch Products: Stock products available for same-day despatch through Seetru Direct e-commerce platform. Includes atmospheric and piped discharge relief valves in brass or stainless steel construction.
3. Third-Party Valve Distribution: Distribution of complementary products including pressure-regulating valves, pressure-reducing valves from SCHLEY ARMATUREN GMBH, overflow valves, bursting discs, and other safety pressure equipment.

Pricing tiers

Go-to-market motion2 records

Distribution channels3 records

Marketing channels3 records

Core offering

Seetru designs and manufactures safety relief valves, liquid level gauges, and ancillary valves for industrial applications including compressed air, industrial gas, refrigerants, steam, liquid, and liquefied gas. The product portfolio spans pressure ratings from 0.2 bar to 1100 bar, with proprietary Rock-Seal™ sealing technology in the LGS® range and multiple international approvals (ASME/NB, DNV, ABS, BV, RINA, LR, WRAS, PED, UKCA). The company also distributes complementary pressure-regulating and pressure-reducing valves from SCHLEY ARMATUREN GMBH.

Product overview

Seetru is a manufacturer of safety relief valves, liquid level gauges, and ancillary valves. The product portfolio centers on pressure safety equipment for industrial applications including compressed air, industrial gas, refrigerants, steam, liquid, and liquefied gas. The core offerings include Safety Relief Valves (with various sub-types like LGS and LGS HI-FLOW for different flow requirements), Change-Over Valves for redundant system maintenance, Pressure and Temperature Relief Valves, Liquid Level Gauges (including the G35 Seemag magnetic gauge), and auxiliary valves. Additional offerings include Pressure Reducing Valves sourced from SCHLEY ARMATUREN GMBH and The Seetru Quicktester for valve testing compliance. Products are offered with various materials (bronze, brass, stainless steel), connection types (threaded, flanged, weld end), and approvals for different international standards.

Differentiator

Problem solved

Functional benefit

Brands

• LGS: Multi-purpose safety relief valve range with dual-guided spindle and Rock-Seal technology for liquid, gas, and steam applications
• Seemag
• Rock-Seal

Products and services

• Safety Relief Valves

Quantifiable outcome

• Valves can withstand set pressures up to 1100 bar for hydrogen applications
• +2 more outcomes

Named customers5 records

Segments8 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature4 records

Partnerships

One partnership is on record.

• SCHLEY ARMATUREN GMBHminorChannel Partner/ Reseller/ DistributorSeetru offers SCHLEY ARMATEN GMBH pressure reducing valves as part of their product catalog, alongside their own manufactured safety relief valves. This extends Seetru's product range to include pressure regulation solutions.

Scale indicators4 records

Recent moves6 records

Expansion highlights6 records

Broad incumbents

• KSB SE & Co. KGaA: KSB manufactures pumps, valves, and related systems for industrial, water, and energy applications, including safety relief valves. A large incumbent competitor, especially in European water, chemical, and power generation verticals that overlap with Seetru.
• Weir Group (ESCO/Pressure Relief): Weir Group, through its valves and flow control businesses, serves oil & gas, mining, and power with safety relief and pressure control products. A broad incumbent competitor to Seetru in upstream and process industries.
• Spirax-Sarco Engineering: Spirax-Sarco is a UK-based global leader in steam system solutions including safety valves, pressure reducing, and condensate management. A direct competitor in Seetru's steam and industrial vertical, with materially larger R&D, sales force, and global footprint.
• Emerson (Crosby Valve): Emerson's Crosby brand is the global market leader in pressure relief valves for oil & gas, refining, and chemical. Competes with Seetru in the same ASME-certified safety valve category but at a much larger scale and broader portfolio across process automation.
• Pentair (Tyco/Anderson Greenwood): Pentair's Flow & Filtration Solutions segment includes legacy Anderson Greenwood pressure relief valves used in oil & gas, refining, and power. Overlaps directly with Seetru in safety relief valves but operates at significantly larger scale across broader process equipment categories.

Emerging players

• Bifold Group: Bifold is a UK-based manufacturer of pneumatic, hydraulic, and process valves including pressure relief for oil & gas and chemical applications. A smaller UK-headquartered peer with overlapping product range and similar geographic positioning.

Direct peers

• Armstrong International: Armstrong manufactures safety relief valves, pressure reducing valves, and steam trapping products for industrial and HVAC applications. Highly comparable to Seetru in product mix and customer base, though Armstrong is significantly larger and US-headquartered.
• LESER: LESER is one of the largest European manufacturers of safety relief valves, with a comparable product portfolio (spring-loaded and balanced-bellows PRVs) serving oil & gas, chemical, and industrial applications. Seetru already operates as LESER UK, indicating a direct partnership/overlap relationship.
• Velan Inc. Velan is a Canadian-headquartered manufacturer of industrial valves including safety relief valves for nuclear, oil & gas, chemical, and power. A direct peer in safety/relief valve manufacturing with international certifications comparable to Seetru's.

Regional players

• REYAX (Shanghai Reyax Valve): REYAX and similar Asian safety valve manufacturers offer comparable ASME-certified pressure relief valves at lower price points, primarily serving the Asia-Pacific market. A regional competitor that may compete with Seetru's distributor network in Asian geographies.

Market position

Strengths4 records

Weaknesses1 record

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/seetrulimited
• Xx.com/SeetruLimited
• Facebookfacebook.com/SeetruLimited

Compliance14 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 Seetru