Stafsjo
Stafsjö Valves AB is a Swedish manufacturer of high-performance knife gate valves for the global process industry, producing configurable valves from DN 50 to DN 1800 at pressures up to 50 bar. Founded in 1666 and owned by the Bröer Group since 2005, the company serves pulp and paper, mining, wastewater, chemical, and other industrial customers worldwide through distributors.
- Company typePrivate
- Founded-
- HeadquartersStavsjö, Sweden
- Headcount101–250
- GTM typeB2B
- OfferingHardware or Manufacturing
What Stafsjo does
Stafsjö Valves AB is a Swedish industrial manufacturer of high-performance knife gate valves, headquartered in Stavsjö, Sweden, and tracing continuous operating history to a royal charter granted in 1666. The company designs, manufactures, and distributes knife gate valves used for isolation and on/off duty in demanding industrial processes including pulp and paper, mining, water and wastewater treatment, chemical processing, biomass, power, steel, food and beverage, and offshore applications. Its valves range in size from DN 50 (2 inches) to DN 1800 (72 inches), with pressure ratings up to 50 bar, and are built across configurable product families covering through-going gates (HG, HP, HPT titanium, HX, HL), slurry and abrasive service (SLV, SLF, SLH, SLX), wafer and lug styles for general service (WB, WB11, WB14, WB14E), and reject-separation solutions (JT, JTV, RKO, RKS, D2G, MV, TV).
The company combines specialized mechanical engineering know-how with execution signals such as record production of 25,514 valves in 2025 and a 97% on-time delivery rate maintained during the 2020 pandemic. Major product milestones include the 1928 invention of the Pulp Stock Valve (Massaventil), the 1968 introduction of the H2G (later HG) through-going knife gate for high-consistency pulp, the 1989 launch of the RKO and HG DN 1200, the 2007 commissioning of a Uniport 6000 machining center for DN 1800 manufacture, the 2009 launch of the SLV/SLF slurry family for mining, and the 2016 launch of the bi-directional WB14E in stainless steel.
Stafsjö operates as a privately held company within the Bröer Group, which acquired it from the Störning family via Beijer Alma Group in 2005 and which also owns Ebro Armaturen; the combined group employs more than 1,000 people across 28 countries. The business model is primarily hardware sales of customized valves, spare parts, and related services, priced via quote-based commercial terms (often multi-year contracts) and distributed globally through a network of sales partners and distributors with local stocks in many countries, alongside direct customer engagement through website quote requests, newsletters, and corporate social media channels (Facebook, Instagram, LinkedIn, YouTube, Vimeo).
Stafsjo firmographics
Firmographics- Name
- Stafsjo
- Legal name
- Stafsjö Valves AB
- Website
- https://stafsjo.com
- Company type
- Private
- Operating status
- Operating
- Headcount range
- 101–250 employees
- Short description
- Stafsjö Valves AB is a Swedish manufacturer of high-performance knife gate valves for the global process industry, producing configurable valves from DN 50 to DN 1800 at pressures up to 50 bar. Founded in 1666 and owned by the Bröer Group since 2005, the company serves pulp and paper, mining, wastewater, chemical, and other industrial customers worldwide through distributors.
- Ownership category
- akta.pro rank
Stafsjo industry classification
Industry- Product category
- Industrial Knife Gate Valves
- NAICS
- Industrial Valve Manufacturing (332911), Metal Valve Manufacturing (33291), Fluid Power Valve and Hose Fitting Manufacturing (332912)
- SIC
- Special Industry Machinery, Nec (3559)
- akta.pro primary industry
- Seals, Valves & Auxiliary Components (for Pumps/Compressors) (IMAHANAH)
Keywords
Where Stafsjo is headquartered
LocationHeadquarters
- HQ city
- Stavsjö
- HQ country
- Sweden
- HQ region
- Europe
Offices1 record
Markets served
Stafsjo business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Marketing or Sales, Infrastructure
Revenue model
- Industrial valve manufacturing and sales: Stafsjö develops and manufactures high performance knife gate valves for demanding industrial processes. Revenue is generated through the sale of customized valves, spare parts, and related services. Products are sold globally through a network of distributors and directly to end customers.
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Other | Multi-year contract | Custom quotation-based pricing |
Go-to-market motion1 record
Distribution channels1 record
Marketing channels4 records
Stafsjo product offering
Product offeringCore offering
Stafsjö develops, manufactures, and distributes high performance knife gate valves for demanding industrial processes worldwide. The product range covers sizes from DN 50 (2") to DN 1800 (72") with pressure ratings up to 50 bar, available in multiple shut-off techniques and materials including stainless steel, nodular iron, and titanium. Products are configurable for applications in pulp and paper, mining, water treatment, chemical, biomass, power, steel, food and beverage, and offshore industries.
Product overview
Stafsjö develops and manufactures high performance knife gate valves for demanding industrial processes worldwide. The product portfolio consists of a unified family of industrial valve products that range from DN 50 (2") to DN 1800 (72") in size, with pressure ratings up to 50 bar. The products are organized into several product lines: the HG/HP/HPT/HX through-going gate series for high pressure applications; the SLV/SLF/SLH/SLX slurry valve series for mineral processing; the WB/WB11/WB14/WB14E wafer and lug style valves for wastewater and general service; the MV uni-directional valve for on/off and modulating duties; the RKO/RKS valves for specialized applications; and the JT/JTV Junc Trap solutions for reject separation. The company is part of the Bröer Group alongside Ebro Armaturen.
Differentiator
Problem solved
Functional benefit
Products and services
- D2G High speed valve designed for reject separation applications, featuring rapid actuation for handling contaminated fluids and waste.
- HG High performance through-going knife gate valve, the standard offering for pulp stock tower isolation with through-going gate design allowing easy shut-off through high consistency pulp stock.
- HL Compact through-going knife gate valve designed for low pressure applications, offering a space-saving solution for less demanding isolation duties.
- HP Through-going high pressure knife gate valve for applications requiring higher pressure ratings, part of the HG/HP/HX product range for pulp stock tower isolation.
- HPT Through-going high pressure knife gate valve constructed in Titanium, designed for extreme corrosive conditions requiring high-grade materials.
- HX Extreme high pressure knife gate valve with through-going gate, the highest pressure variant in the product range for demanding industrial processes.
- JT (Junk Trap) Complete Junk Trap solution for reject separation, designed for collecting impurities in wood chip washing and similar processes.
- JTV Optimal valve solution for junk traps and high density cleaners, featuring design suited for heavy wearing applications in pulp processing.
- MV Uni-directional knife gate valve for on/off or modulating control on dry media or liquids, featuring compact design with replaceable sealing parts for low cost of ownership.
- RKO Valve solution for junk traps and high density cleaners with unique shut-off characteristics, designed to operate in heavy wearing applications where sand, stones and contaminants are separated from process fluids.
- RKS Stainless steel square or rectangular knife gate valve designed for powder, bulk materials and waste water sludge applications.
- SLV Compact push through slurry knife gate valve designed for abrasive mineral processing applications.
- SLF Heavy duty push through slurry knife gate valve for demanding mineral processing applications with high abrasion resistance requirements.
- SLH & SLX High pressure push through slurry knife gate valves designed for demanding slurry applications requiring higher pressure ratings.
- TV Compact transmitter isolation valve designed for instrumentation applications in industrial processes.
- WB & WB11 Semi lug performance knife gate valves manufactured in nodular iron, designed for wastewater treatment and biomass service applications.
- WB14 Bi-directional and fully lugged performance knife gate valve in nodular iron, offering full bi-directional sealing ability.
Quantifiable outcome
- 93-97% yield in TMP process using Stafsjö valves
- +1 more outcomes
Companies that use Stafsjo
Customer profileNamed customers3 records
Segments9 records
Ideal customer profiles4 records
Stafsjo technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
Stafsjo partnerships and signals
Strategic signalPartnerships
Three partnerships are on record, tiered core and minor.
- Bröer GroupcoreStafsjö Valves AB is a company of Bröer Group, together with Ebro Armaturen. The group has more than 1,000 employees in 28 countries and offers high performance knife gate valves, pioneering butterfly valves, actuator technology and automation solutions. The Bröer family acquired Stafsjö Bruk from Beijer Alma Group in 2005.
- Ebro ArmaturencoreEbro Armaturen is the sister company within Bröer Group. Together with Ebro Armaturen, Stafsjö forms the Bröer Group offering complementary valve solutions including high performance knife gate valves, pioneering butterfly valves, actuator technology and automation solutions.
- KPMG ABminorKPMG AB provides Stafsjö's whistleblower service, an independent reporting channel for employees and stakeholders to report malpractices and irregularities. KPMG's Whistleblower Service operates independently of Stafsjö's intranet and external website.
Scale indicators4 records
Recent moves6 records
Expansion highlights4 records
Stafsjo competitors and assessment
Company assessmentBroad incumbents
- KSB SE & Co. KGaA: German global pumps and valves manufacturer with industrial-process and mining/water exposure. Competes with Stafsjö on slurry and wastewater valve lines within a much broader flow-equipment catalog.
- Flowserve Corporation: One of the world's largest industrial flow-control manufacturers. Competes broadly with Stafsjö in pulp, chemical, power, and mining valves; offers broader portfolio that can sometimes bundle knife gates into larger bids.
- ITT Inc. (Engineered Valves): Major industrial conglomerate with engineered valves businesses (e.g., ITT Fabri-Valve). Overlaps with Stafsjö on heavy-duty pulp and chemical isolation valves as part of a much wider industrial portfolio.
- Emerson (Pentair Valves & Flow Control, formerly Pentair/Keystone): Global valve and automation major with strong pulp & paper and water presence. Provides broad-portfolio competition to Stafsjö, particularly on engineered isolation valve packages for large projects.
Direct peers
- Orbinox: Spanish-headquartered specialist in knife gate valves for pulp & paper, mining, water, and power. Closest direct competitor to Stafsjö with overlapping size range, bi-directional sealing technology, and go-to-market through industrial distributors.
- Red Valve (a Mueller Company brand): Specializes in pinch, knife gate, and slurry valves for mining, wastewater, and pulp. Competes with Stafsjö in abrasive-service isolation and tailings handling.
- Waterman Valve: US manufacturer focused on knife gate and swing check valves for industrial process fluids. Comparable on abrasive-slurry and wastewater applications where Stafsjö's SLV/SLH and WB series compete.
- DeZURIK (a Crane Co. brand): Long-established knife gate valve brand serving pulp & paper, wastewater, and power. Direct overlap with Stafsjö's HG/MV/WB lines, including bi-directional and high-pressure variants.
- Velan Inc. Canadian manufacturer of industrial valves including a dedicated knife gate valve line for severe service in pulp & paper, mining, and chemical. Competes directly in Stafsjö's core high-pressure, large-diameter segments.
Emerging players
- Ebro Armaturen: Sister company within Bröer Group focused on butterfly valves, actuators, and automation. Closely related to Stafsjö via shared ownership and complement product portfolio; comparable European mid-market industrial valve player.
Market position
Strengths5 records
Weaknesses4 records
Competitive moat4 records
Key risks5 records
Key highlights7 records
Customer concentration
Stafsjo social profiles
Digital presenceStafsjo financial estimates
Financial estimateRevenue estimate
Valuation estimate
Stafsjo leadership team
Management profileNumber of profiles
Stafsjo funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
Stafsjo M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about Stafsjo
What does Stafsjo do?
Stafsjö develops, manufactures, and distributes high performance knife gate valves for demanding industrial processes worldwide. The product range covers sizes from DN 50 (2") to DN 1800 (72") with pressure ratings up to 50 bar, available in multiple shut-off techniques and materials including stainless steel, nodular iron, and titanium. Products are configurable for applications in pulp and paper, mining, water treatment, chemical, biomass, power, steel, food and beverage, and offshore industries.
Is Stafsjo a public or private company?
Stafsjo is a private company. It is classified as corporate owned and is currently operating.
When was Stafsjo founded?
Stafsjo was founded in -1. It employs 101 to 250 people.
Where is Stafsjo based?
Stafsjo is headquartered in Stavsjö, Sweden, in the Europe region.
How does Stafsjo make money?
One revenue line is on record: industrial valve manufacturing and sales.
Who are Stafsjo's main competitors?
Broad incumbents on record are KSB SE & Co. KGaA, Flowserve Corporation, ITT Inc. (Engineered Valves) and Emerson (Pentair Valves & Flow Control, formerly Pentair/Keystone). Direct peers are Orbinox, Red Valve (a Mueller Company brand), Waterman Valve, DeZURIK (a Crane Co. brand) and Velan Inc.. Ebro Armaturen is listed as an emerging player.
Does Stafsjo have an API?
No public API is recorded for Stafsjo.
What industry is Stafsjo in?
Stafsjo's product category is Industrial Knife Gate Valves. Its primary akta.pro industry code is IMAHANAH, Seals, Valves & Auxiliary Components (for Pumps/Compressors). Its NAICS code is 332911 and its SIC code is 3559.