PK Valve
PK Valve & Engineering, founded in 1946 in Changwon, South Korea, is Korea's oldest industrial valve manufacturer producing cryogenic, nuclear-grade, and high-pressure valves for nuclear, oil & gas, LNG, and hydrogen energy sectors across more than 70 countries.
- Company typePrivate
- Founded1946
- HeadquartersChangwon, South Korea
- Headcount251–500
- GTM typeB2B
- OfferingHardware or Manufacturing
What PK Valve does
PK Valve & Engineering Co., Ltd. is a Changwon, South Korea-based industrial valve manufacturer, established in 1946 as the first company to locate in the Changwon National Industrial Complex and operating as Korea's oldest and largest industrial valve company. The company designs and manufactures a comprehensive portfolio of industrial valves including Bolted Bonnet Valves, Pressure Seal Valves, Parallel Slide Gate Valves, Cryogenic Valves, Bellows Seal Valves, Butterfly Valves (Concentric, Double Eccentric, Triple Offset), Ball Valves, Forged Steel Valves, and High Pressure Forged Steel Valves, complemented by accessories such as chainwheels, gearboxes, limit switches, and pneumatic actuators. Production is vertically integrated: PK Valve operates its own foundry for casting, in-house machining, assembly, testing, and quality inspection, supported by Autodesk Inventor 3D CAD and ANSYS structural, flow, seismic, and heat-transfer analysis. Headcount is reported at 251–500 employees.
Technology emphasis is on extreme-environment qualification. Cryogenic valves are rated to -254°C for LNG service using an extended bonnet design with enclosed vapor chamber; in June 2023 the company completed a verification demonstration of a liquefied hydrogen (LH2) globe valve at -253°C, claiming a world-first independently developed test facility and procedure at this temperature. Nuclear-grade offerings include ASME-N, ASME-NPT, and ASME QME-1 qualified equipment, including Emergency Reactor Depressurization Valves (ERDV) for severe accident environments. Other differentiated products include Triple Offset Butterfly Valves with bi-directional zero-leakage metal seating, API 6D trunnion-mounted ball valves with API 607/6FA fire-safe construction, and ISO 15848-1/API 624 fugitive-emission compliance. The company holds seven registered Korean patents and multiple classification society approvals (DNV-GL, Bureau Veritas, KR, ABS, NK, Lloyd's Register).
Revenue is generated through project-based B2B sales of capital equipment to global end-users and EPC contractors in nuclear (Korea Hydro & Nuclear Power, Emirates Nuclear Energy Corporation at Barakah), oil & gas (Saudi Aramco, ExxonMobil, Total, KNPC, SABIC, ADGAS), LNG (Tokyo Gas), petrochemical, power generation, marine, and emerging hydrogen energy (Hyrium Industry) sectors. Distribution relies on a dedicated Global Sales Team and Strategic Sales Team handling RFQs through the corporate website and an ePK-SCM partner portal, with supply performance recorded in more than 70 countries. After two consecutive loss years, FY2023 revenue was 121 billion KRW (~US$90M) with operating profit of 3.8 billion KRW and net income of 0.7 billion KRW; the 2024 revenue target was 130 billion KRW.
PK Valve firmographics
Firmographics- Name
- PK Valve
- Legal name
- PK Valve & Engineering Co., Ltd.
- Website
- https://pkvalve.co.kr
- Company type
- Private
- Founded year
- 1946
- Operating status
- Operating
- Headcount range
- 251–500 employees
- Short description
- PK Valve & Engineering, founded in 1946 in Changwon, South Korea, is Korea's oldest industrial valve manufacturer producing cryogenic, nuclear-grade, and high-pressure valves for nuclear, oil & gas, LNG, and hydrogen energy sectors across more than 70 countries.
- Ownership category
- akta.pro rank
PK Valve industry classification
Industry- Product category
- Industrial Valve Manufacturing
- NAICS
- Industrial Valve Manufacturing (332911), Metal Valve Manufacturing (33291)
- SIC
- Special Industry Machinery, Nec (3559)
- akta.pro primary industry
- Valves & Cartridge Valves (Directional, Pressure, Flow Control) (IMAHAGAE)
Keywords
Where PK Valve is headquartered
LocationHeadquarters
- HQ city
- Changwon
- HQ country
- South Korea
- HQ region
- Asia
Offices1 record
Markets served
PK Valve business model
Business model- GTM type
- B2B
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Personnel, Operations, Technology or R&D, Infrastructure, Marketing or Sales
Revenue model
- Industrial Valve Manufacturing and Sales: PK Valve & Engineering generates revenue through the manufacture and sale of industrial valves including Bolted Bonnet Valves, Pressure Seal Valves, Parallel Slide Gate Valves, Cryogenic Valves, Bellows Seal Valves, Butterfly Valves, Ball Valves, Forged Steel Valves, High Pressure Forged Steel Valves, and Accessories. The company serves nuclear power, oil & gas, LNG, petrochemical, power generation, and hydrogen energy sectors globally.
Go-to-market motion1 record
Distribution channels3 records
Marketing channels6 records
PK Valve product offering
Product offeringCore offering
PK Valve & Engineering designs, manufactures, and tests industrial valves — bolted bonnet, pressure seal, parallel slide gate, cryogenic, bellows seal, butterfly, ball, forged steel, and high pressure forged steel valves — for nuclear power, oil & gas, LNG, petrochemical, hydrogen energy, and marine/shipbuilding customers worldwide. The company operates an integrated one-stop production system from 3D CAD design through casting, machining, assembly, testing, and quality inspection, with proprietary test facilities including the world's first LH2 valve qualification at -253°C.
Product overview
PK Valve & Engineering is Korea's first and largest industrial valve company, established in 1946. The company offers a comprehensive portfolio of industrial valves including Bolted Bonnet Valves (Gate, Globe, Swing Check, Tilting Disc Check, Dual Plate Check), Pressure Seal Valves (Gate, Globe, Y-Globe, Swing Check, Tilting Disc Check), Parallel Slide Gate Valves, Cryogenic Valves (rated for LNG and liquid hydrogen at -253°C), Bellows Seal Valves, Butterfly Valves (Concentric, Double Eccentric, Triple Offset), Ball Valves, Forged Steel Valves (Gate, Globe, Swing Check, Lift Check), and High Pressure Forged Steel Valves. The product lineup is complemented by Accessories and E-catalogs. The company serves global markets across Asia, Middle East, Europe, North/South America, and Africa, with supply performance in over 70 countries.
Differentiator
Problem solved
Functional benefit
Products and services
- Bolted Bonnet Valve Bolted bonnet gate valves with flexible wedge construction for thermal expansion compensation, including Gate, Globe, Swing Check, Tilting Disc Check, and Dual Plate Check variants for general industrial service.
- Pressure Seal Valve High pressure and high temperature gate, globe, Y-globe, swing check, and tilting disc check valves for nuclear steam generating stations, industrial and chemical plants, and thermal power plants.
- Parallel Slide Gate Valve Parallel slide gate valves for high temperature and pressure lines designed to prevent thermal binding, featuring spring-loaded discs with interchangeable seat design for in-line maintenance.
- Cryogenic Valve Cryogenic valves for storage and transport of liquefied gases such as LNG, liquid nitrogen, and oxygen, with extended bonnet and enclosed vapor chamber to isolate packing from cryogenic fluid, rated down to -254°C.
- Bellows Seal Valve Bellows seal valves engineered for zero leakage applications with maintenance-free design and grease nipple lubrication, suitable for high temperature isolation service.
- Butterfly Valve Concentric, double eccentric (high-performance), and triple offset butterfly valves with bi-directional bubble-tight shutoff and metal seat sealing, eliminating rubbing through inclined cone geometry.
- Ball Valve Trunnion-mounted ball valves designed to API 6D and ASME B16.34 with fire-safe construction per API 6FA and API 607, double block and bleed capability, and primary metal secondary soft seat (PMSS) design.
- Forged Steel Valves Forged steel gate, globe, swing check, and lift check valves offering superior toughness, impact resistance, and structural integrity compared to cast equivalents.
- High Pressure Forged Steel Valve High pressure forged steel valves rated 800-4500 and above, available as gate valves (1/2" to 24"), Y-globe valves (1/2" to 8"), angle valves (1/2" to 4"), and check valves (1/2" to 2") with low emission design and easy maintenance.
- Valve Accessories Actuator, control, and isolation accessories including Chainwheel, Extended Gear, Gearbox, High Load Gearbox, Limit Switch, Locking Chain, Locking Gear, Dashpot, Live Loading, Balance Valve, Bypass Valve, and Bypass Equalizing components.
- Pneumatic Actuator (PK Brand) PK-brand pneumatic actuator designed and developed for actuation of valves in nuclear power plants, LNG carriers, and marine industries, undergoing qualification per IEEE 382 and ASME QME-1 for NSSS and unmanned autonomous ship applications.
- Emergency Reactor Depressurization Valves (ERDV) Safety-grade nuclear Emergency Reactor Depressurization Valves designed, manufactured, and tested for severe accident environments with ASME QME-1 functional qualification and IEEE 382 qualified actuators.
Quantifiable outcome
- Emergency Shut Down LH2 Globe Valve achieved zero leakage and well operability at -253°C with shell testing at 29 bar, operation at 12 bar, seat at 15 bar
- +1 more outcomes
Companies that use PK Valve
Customer profileNamed customers10 records
Segments5 records
Ideal customer profiles2 records
PK Valve technology and API
TechnologyTechnology focussed Yes
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature5 records
PK Valve partnerships and signals
Strategic signalScale indicators8 records
Recent moves7 records
Expansion highlights6 records
PK Valve competitors and assessment
Company assessmentDirect peers
- Velan Inc. Canadian manufacturer of industrial valves (gate, globe, check, ball, butterfly, cryogenic) serving nuclear, oil & gas, LNG, and power generation — directly comparable product portfolio, end-markets, and customer profile to PK Valve.
- KITZ Corporation: Japanese industrial valve maker offering bronze, cast iron, stainless, and cryogenic valves across similar process industries; comparable in size, geography (Asian OEM), and product breadth.
- Flowserve Corporation: U.S. global leader in industrial pumps, valves, and seals serving oil & gas, power, chemical, and water — directly competing in nuclear-grade and cryogenic valves with PK Valve, but at materially larger scale.
- CIRCOR International: Specialty flow-control company with comparable engineered valve and pressure-regulation products for nuclear, defense, and process industries; similar mid-sized industrial valve focus.
- IMI plc: UK-based critical-flow control specialist with severe-service and cryogenic valve offerings, including IMI Critical Engineering and Bopp & Reuther brands — direct peer in high-spec industrial and energy valve segments.
- Neway Valve (Suzhou Neway Valve Co.): Chinese industrial valve manufacturer serving oil & gas, petrochemical, power, and LNG with overlapping gate, globe, check, and ball valve product lines; comparable scale and export orientation.
- Mokveld Valves BV: Netherlands-based specialist in axial control valves, check valves, and safety shut-off valves for upstream oil & gas — comparable in engineered, high-pressure valve niche.
Broad incumbents
- Crane Co. Diversified U.S. industrial manufacturer whose Crane ChemPharma & Energy segment directly competes with PK Valve in process and energy valves, but Crane's overall portfolio spans aerospace, electronics, and building products.
Regional players
- Velan and Velan Korea (Samjin): Not applicable — already listed Velan above; instead, KCC Valve / Korean regional valve fabricators serve as in-country competitors but lack disclosed comparable scale.
- Everest Valve Co., Ltd. Korean competitor manufacturing cast and forged steel industrial valves (gate, globe, check) for oil & gas and power plants; directly comparable regional peer based in Korea.
Market position
Strengths1 record
Weaknesses5 records
Competitive moat4 records
Key risks1 record
Key highlights7 records
Customer concentration
PK Valve social profiles
Digital presencePK Valve compliance and trust
Trust signalCompliance7 records
PK Valve financial estimates
Financial estimateRevenue estimate
Valuation estimate
PK Valve leadership team
Management profileNumber of profiles
Profiles1 record
PK Valve funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
PK Valve 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 PK Valve
What does PK Valve do?
PK Valve & Engineering designs, manufactures, and tests industrial valves — bolted bonnet, pressure seal, parallel slide gate, cryogenic, bellows seal, butterfly, ball, forged steel, and high pressure forged steel valves — for nuclear power, oil & gas, LNG, petrochemical, hydrogen energy, and marine/shipbuilding customers worldwide. The company operates an integrated one-stop production system from 3D CAD design through casting, machining, assembly, testing, and quality inspection, with proprietary test facilities including the world's first LH2 valve qualification at -253°C.
Is PK Valve a public or private company?
PK Valve is a private company. It is classified as management employee owned and is currently operating.
When was PK Valve founded?
PK Valve was founded in 1946. It employs 251 to 500 people.
Where is PK Valve based?
PK Valve is headquartered in Changwon, South Korea, in the Asia region.
How does PK Valve make money?
One revenue line is on record: industrial Valve Manufacturing and Sales.
Who are PK Valve's main competitors?
Direct peers on record are Velan Inc., KITZ Corporation, Flowserve Corporation, CIRCOR International, IMI plc, Neway Valve (Suzhou Neway Valve Co.) and Mokveld Valves BV. Crane Co. is listed as a broad incumbent. Regional players are Velan and Velan Korea (Samjin) and Everest Valve Co., Ltd..
Does PK Valve have an API?
No public API is recorded for PK Valve.
What industry is PK Valve in?
PK Valve's product category is Industrial Valve Manufacturing. Its primary akta.pro industry code is IMAHAGAE, Valves & Cartridge Valves (Directional, Pressure, Flow Control). Its NAICS code is 332911 and its SIC code is 3559.