Digital buyer journeys
What digital buyer journeys means for buyers and exhibitors in this sector.
Event overview
Overview
The DIAM & DDM Bochum 2027 is set to be the largest national trade event for industrial valves and sealing technology. Scheduled for November 17-18, 2027, at Jahrhunderthalle Bochum, this exhibition will gather professionals to showcase innovations and foster valuable connections.
Attendees will include decision-makers from various sectors such as plant engineering, process industry, and energy supply, making it a key platform for industry networking and collaboration. DIAM & DDM Bochum 2027.
TL;DR
- 1Dates and Venue: 17-18 November 2027 at the Jahrhunderthalle Bochum, the converted early-1900s power station in the Westpark industrial-heritage district.
- 2Scale and Focus: DIAM/DDM is the German national trade meeting for industrial valves (Armaturen) and sealing technology, organised by Leipziger Messe together with HuT - Messe & Event.
- 3Sector Scope: valves, actuators, gaskets, packing, mechanical seals and the plant-engineering and automation hardware that surrounds them.
- 4Who Should Attend: buyers and engineers from chemical, petrochemical, water and wastewater, energy, food and process plant operators, plus valve and seal manufacturers and their suppliers.
- 5Travel Note: Bochum has no commercial airport; Dortmund (DTM) is closest, Duesseldorf (DUS) offers the widest long-haul connections and direct regional trains to Bochum Hauptbahnhof.
Why visit
Attendees will gain insights into the latest innovations in industrial valves and sealing technology. Dates and Venue: DIAM & DDM Bochum 2027 takes place on November 17-18, 2027 at Jahrhunderthalle Bochum, Germany. Buyer Authority: Decision-makers and specialists from plant engineering, process industry, and energy supply will attend.
Why exhibit
Exhibitors will have direct access to a high-caliber audience of decision-makers and industry specialists. The event offers a platform to showcase products and innovations, enhancing visibility in the market. Exhibitors can forge valuable connections and partnerships within the industry. Meet qualified buyers and partners including Manufacturers of industrial valves, Suppliers of sealing technology, Companies specializing in automation technology.
Attendees, exhibitors & solutions
Who this event is for
Visitor profile
Typical attendee groups you can expect to meet.
Decision-makers from the plant engineering sector
Professionals in the process industry
Experts in energy supply and management
Specialists in water and wastewater management
Representatives from hydrogen technology firms
Industry equipment suppliers
Exhibitor profile
Main supplier and exhibitor segments present at the show.
Manufacturers of industrial valves
Suppliers of sealing technology
Companies specializing in automation technology
Firms providing actuator technology
Service and maintenance providers
Distributors of plant engineering solutions
Product categories
Key solution areas showcased across the event.
Industrial valves: gate, globe, check, ball, butterfly and diaphragm valves for process, water, energy and utility plant
Valve actuation and automation: electric, pneumatic and hydraulic actuators, positioners, solenoids and control accessories
Sealing technology: static and dynamic seals, O-rings, gaskets, gland packing, mechanical seals and seal supply systems
Sealing materials and semi-finished products: elastomers, PTFE, graphite, fibre gasket sheets, metal gasket materials, castings and forgings
Valve internals and components: stems, seats, bonnets, trim, springs, diaphragms and stem sealing kits
Pumps and fluid-handling components used in the same process lines as valves and seals
Measurement and control: pressure, flow and temperature instrumentation for valve and seal monitoring
Testing, diagnostics and maintenance: leak detection, tightness testing, condition monitoring, service, repair and spare parts
Standards, certification and engineering services: PED/CE conformity, TA-Luft and ISO 15848 fugitive-emission testing, notified bodies and engineering offices
Piping and plant equipment: flanges, fittings, pipeline components, assembly systems and plant-engineering services
Location & Facilities
Venue
Jahrhunderthalle Bochum
Bochum, Germany
Facilities
Parking
Jahrhunderthalle Bochum in Bochum typically provides on-site or adjacent visitor parking during major trade fairs; confirm daily rates, payment methods and hall access on the organiser or venue website before travel.
Food options
On-site catering
On-site diningParking: Jahrhunderthalle Bochum in Bochum typically provides on-site or adjacent visitor parking during major trade fairs; confirm daily rates, payment methods and hall access on the organiser or venue website before travel.
Gate: Follow organiser signage to the main visitor entrance at Jahrhunderthalle Bochum for badge collection; allow extra time for security screening during peak morning arrival.
Attend
Entry & tickets
Who runs the show
Organisers
Leipziger Messe GmbH
HuT - Messe & Event GmbH
Intelligence
Market context
Key market insights, trends, news and related events to help you understand the bigger picture.
Bochum, Germany
Why it matters
Attending DIAM & DDM Bochum 2027 on 2027-11-17 to 2027-11-18 in Bochum lets buyers and specifiers benchmark suppliers, see live demonstrations, and compress months of vendor meetings into one focused trade visit — worthwhile when your category roadmap aligns with the official exhibitor profile.
Industry trends
Key trends shaping this market and its wider industry.
Sustainability in procurement
What sustainability in procurement means for buyers and exhibitors in this sector.
Automation and labour efficiency
What automation and labour efficiency means for buyers and exhibitors in this sector.
Regional supply-chain resilience
What regional supply-chain resilience means for buyers and exhibitors in this sector.
Hybrid engagement models
What hybrid engagement models means for buyers and exhibitors in this sector.
Plan your trip
Travel & logistics
Local currency · EUR
Hotel tiers
A range of accommodation options near the venue and across key areas.
B&B HOTEL Bochum-City
budget
Bochum city centreGuest rating 4.3 from about 694 reviews; breakfast and parking at extra cost, free Wi-Fi, air conditioning, pet-friendly, bar, accessible. Prices must be reconfirmed for the November 2027 show dates.
B&B HOTEL Bochum
budget
BochumGuest rating 3.6; breakfast and parking at extra cost, free Wi-Fi, air conditioning, pet-friendly, kid-friendly.
B&B HOTEL Bochum Hbf-Nord
budget
Bochum Hauptbahnhof (north side)Guest rating 3.6; free parking and free Wi-Fi, breakfast at extra cost, air conditioning, pet-friendly, accessible, kid-friendly.
Garner Hotel Bochum by IHG
midscale
BochumGuest rating 4.0; free Wi-Fi and free parking, air conditioning, fitness centre, bar, restaurant, kitchen in rooms, pet-friendly.
art Hotel Tucholsky
midscale
BochumGuest rating 4.3; free Wi-Fi, breakfast at extra cost, parking at extra cost, air conditioning, pet-friendly, bar, restaurant.
Local transport
Get around the city with these convenient transport options.
VRR city tram or bus
Estimated costApprox. EUR 3.40 single journey (VRR price level A, Bochum city zone); confirm 2027 fares
Best forBochum Hauptbahnhof to Jahrhunderthalle / Westpark area
Check the current line number for the Jahrhunderthalle stop with VRR or the venue before travelling; services are frequent on weekdays.
VRR short-trip ticket (Kurzstrecke)
Estimated costApprox. EUR 2.10 per short trip; confirm 2027 fares
Best forOne or two stops within the Bochum city zone
Useful for the last leg from the city centre if you change from a longer VRR journey; short-trip validity rules are posted at stops.
Deutschlandticket (nationwide regional transport pass)
Estimated costApprox. EUR 58 per month at the 2025 price point; confirm the 2027 price before purchase
Best forAll regional buses, trams and regional trains in Germany, including VRR services to Bochum
Worth it for exhibitors staying more than a week or travelling between Duesseldorf, Essen and Bochum during the show.
Taxi
Estimated costApprox. EUR 12-16 for the roughly 4-5 km trip; confirm the meter fare with the driver
Best forBochum Hauptbahnhof to Jahrhunderthalle
Taxi ranks sit on both sides of Bochum Hauptbahnhof; useful with sample cases or demo parts that are awkward on public transport.
Regional train (S-Bahn / RE)
Estimated costApprox. EUR 20-25 single journey at VRR price level D; confirm 2027 fares
Best forDuesseldorf Airport station to Bochum Hauptbahnhof
Direct regional services toward Dortmund stop at Bochum Hauptbahnhof, and through tickets cover the DUS airport station. Check your exact connection on the day.
Airport taxi
Estimated costApprox. EUR 95-120 for the one-way trip; confirm the fixed or metered price before departure
Best forDuesseldorf Airport (DUS) to Jahrhunderthalle Bochum
Practical only for crews with equipment; the train plus a short taxi from Bochum Hauptbahnhof is usually faster and cheaper during peak hours.
Car and venue parking
Estimated costApprox. EUR 5-10 per day for event parking; confirm the current rate and reservation policy with the venue
Best forJahrhunderthalle Bochum, Westpark
Parking capacity is limited next to the halls during a trade event, so arrive before the opening time or use the tram from the city centre.
taxi
Estimated costApprox. EUR taxi/rideshare from DTM to venue (estimate; confirm before travel)
Best forDortmund Airport (DTM) to Jahrhunderthalle Bochum
Plan your trip
Visa & entry documents
Check the latest visa requirements and entry guidelines before travelling.
Visa not required
ATA Carnet: check with organiser
Weather
November in Bochum and the wider Ruhr area brings cold, overcast weather: daytime highs typically around 7-10 C, overnight lows around 2-5 C, and drizzle or light rain on a good share of days. The halls at the Jahrhunderthalle are indoors, but entrance queues, smoking areas and evening transfers are outdoors, so pack a waterproof coat and warm layers. Daylight fades shortly after 16:30 CET, which makes early evening travel planning worthwhile. Treat this as a climatological band rather than a forecast and check the weather forecast in the week before travel.
Plan for the climate
Check temperatures and pack accordingly
Venue connectivity
Confirm mobile roaming or local SIM options for business visitors to Germany.
Ride-hailing
Taxis
Public transit
Car rentals
Cultural notes
Useful information to help you have a smooth and respectful visit.
Industrial-heritage setting
The Jahrhunderthalle is a converted early-1900s power station in Bochum's Westpark and part of the Ruhr industrial-heritage route. Expect brick and steel halls rather than a purpose-built fairground, so allow a little extra time to orient yourself between areas.
Language at a German valve and seal fair
Most stand staff, datasheets and technical drawings will be in German, with English widely used by export-oriented valve, actuator and seal manufacturers. Bring your specification in DN/PN and standard references, since suppliers will quote against those rather than nominal inches.
Business etiquette
German process-industry engineers arrive with a specification and standards questions, including PED conformity, TA-Luft and ISO 15848 emission classes and material certificates. Punctuality, prepared technical data and straight answers matter more than small talk.
Money, Sundays and opening hours
Card payment is widely accepted but some kiosks and bakeries remain cash-only. Shops in Bochum close on Sundays, so buy supplies on Saturday; restaurants in the city centre generally serve until about 21:00-22:00, and booking after 18:00 is normal.
Getting around the Ruhr
Bochum sits inside the VRR transport network, so a single ticket or the Deutschlandticket covers trams, buses and regional trains between Bochum, Essen and Duesseldorf. The Ruhr is a dense multi-city region, so check whether your hotel is in Bochum or in a neighbouring city before assuming a walking commute to the venue.
Practical guides
Visitor & Exhibitor Essentials
Everything needed to arrive prepared, navigate the event, and make the visit productive.
Flights
The capture ran a Google Flights search from New York JFK to Düsseldorf DUS for 17 Nov 2027 in EUR, so DUS is the gateway that was price-checked for this edition. Rerun the search for your own origin and dates; Bochum is then reached by train or road. No captured fare is quoted here.
Visa
Schengen short-stay rules apply in Germany; visa-national business visitors need a Schengen business visa, while visa-exempt nationals can attend under the 90/180-day allowance. Verify your nationality on the German missions' visa service before booking travel.
Processing: Varies by nationality; apply several weeks before travel.
Entry into the Schengen area is digitally registered under the EES system; ETIAS information and a visa FAQ are published on the same German missions site. No processing time or fee figure appears in the captures - confirm current amounts with the responsible German mission.
OfficialTransport
Get to the venue and around the city with these options.
Airport → venue: Use the nearest international airport serving Bochum; Metro, train or taxi links are typically available to the venue district.
Hotel → venue: Precinct hotels near Jahrhunderthalle Bochum: Bochum city centre: B&B HOTEL Bochum-City; Bochum: B&B HOTEL Bochum; Bochum Hauptbahnhof (north side): B&B HOTEL Bochum Hbf-Nord.
Ride-hail: Ride-hailing apps are commonly used in Bochum; confirm local availability before travel.
Public transit: Bochum is served by the VRR network, with Bochum Hauptbahnhof as the main rail hub for regional trains from Duesseldorf, Essen and Dortmund. From the Hauptbahnhof, take a VRR tram or city bus toward the Jahrhunderthalle and Westpark area (roughly 10-15 minutes plus a short walk), or a taxi for the 4-5 km run. Single journeys sit at around EUR 3.40 at VRR price level A, with a short-trip ticket around EUR 2.10 and the Deutschlandticket around EUR 58 per month at the 2025 price point; confirm 2027 fares and the current line numbers before travelling, since services and stop names can change between editions.
Parking: On-site parking is available at Jahrhunderthalle Bochum; confirm daily rates and hall access on the organiser or venue site.
Weather
Plan and pack for the event climate.
Month: November 2027
Temperature: Daytime highs typically 7-10 C and overnight lows 2-5 C in Bochum during the second half of November; wind and damp air often make it feel colder inside the queue areas.
Seasonality: Late November is one of the wetter periods in the Ruhr, with drizzle or light rain on many days and rapid changes between showers. Daylight ends shortly after 16:30 CET, so plan the return trip from the Jahrhunderthalle before dark and carry a compact umbrella and a waterproof layer.
Packing: November 2027
Plan your trip
Planning
Best day to visit: Day 2 (mid-show)
Mid-show days at DIAM & DDM Bochum 2027 usually combine full exhibitor attendance with scheduled B2B meetings, before early pack-down on the final day.
T-1
Confirm your trade-visitor registration via diam-ddm.com and print or download the badge confirmation; check whether the organiser requires a company proof or VAT number.
T-2
Build a target list from the exhibitor directory: valve makers, actuator and automation suppliers, gasket and packing producers, mechanical seal manufacturers and testing/notified bodies.
T-3
Book rail or flight into Duesseldorf (DUS) or Dortmund (DTM) and a hotel in Bochum city centre or near Bochum Hauptbahnhof so the venue is a short tram or taxi ride away.
T-4
For non-EU travellers, verify Schengen entry requirements and your 90/180-day status; request an organiser invitation letter if a business visa is needed.
T-5
Prepare a one-page technical brief for each supplier meeting: media, pressure and temperature range, DN/PN sizes, required standards (PED, TA-Luft, ISO 15848) and required material certificates.
T-6
Download the hall plan and map the valve and seal stands by hall so you can walk the Jahrhunderthalle efficiently across the two days.
T-7
Check VRR connections from your hotel to the Jahrhunderthalle and note the last tram or bus back after the hall closes; buy a Deutschlandticket or multi-day VRR ticket if you will travel daily.
T-8
Request meetings with the specific valve, actuator or seal engineers you need, rather than relying on walk-up conversations at busy midday hours.
T-9
Pack waterproof outerwear and warm layers; November in the Ruhr averages 7-10 C by day with frequent drizzle, and the queue areas at the entrance are outdoors.
T-10
Travel to Bochum, collect any badge material early if the organiser offers pre-opening collection, and confirm the opening time for 17 November 2027.
T-11
Walk the valve halls first while stands are quieter, then the sealing and gasket stands; note stand numbers and technical contacts for follow-up.
T-12
Send same-day follow-up emails with your specification sheet attached while the conversation is fresh, and book second-day meetings with the shortlist.
T-13
Use the shorter second day for second meetings, testing and certification bodies, and spare-parts or service suppliers you did not reach on day one.
T-14
Consolidate quotes, ask for 3.1 material certificates and PED documentation where relevant, and log the follow-up owners in your procurement tracker.
Sample visitor itinerary
Route-optimised day
Day 1 · morning
Registration and hall orientation at Jahrhunderthalle Bochum
Day 2 · core sessions
Supplier meetings and product demos
Day 3 · wrap-up
Final negotiations and follow-up
Networking spots
2DIAM & DDM Bochum 2027 registration concourse
Jahrhunderthalle Bochum
Central meeting point before and between hall appointments during show days.
Organiser B2B lounge (if offered)
Jahrhunderthalle Bochum
Hosted matchmaking and buyer programmes when published by the organiser.
Budget
Costs & budget
Build your working budget
Adjust the inputs below to create a directional event budget.
Estimated budget
Live estimate
- Hotel × 2 nights€190.00
- Per diem × 2€150.00
Estimated total€340.00
This is a directional estimate. Please verify live rates before booking.
Decision
Visit, exhibit, or skip?
Should you go?
Use this quick check to decide whether DIAM & DDM Bochum 2027 fits your visit, exhibit or skip plan.
QUESTION 1 OF 6
What is your primary role?
Decision matrix
Compare participation options side by side to choose the best fit for your objectives.
visit
Your category focus aligns with the official product themes.
Best for
Buyers, researchers, and delegates evaluating the programme and networking value.
Min. budget
$400.00
Timeline
4-8 weeks before opening day for registration and travel.
Risks
Limited session times published - confirm agenda before booking.
exhibit
You have a clear lead-generation or launch goal for this market.
Best for
Suppliers and brands seeking qualified meetings with the event audience.
Min. budget
$2,500.00
Timeline
3-6 months for stand booking, freight, and marketing prep.
Risks
Booth pricing not published in captured sources - confirm with organiser.
skip
Programme, audience, or commercial goals do not match your plan.
Best for
Teams whose category or region fit is weak this edition.
Timeline
N/A
Risks
No major risks listed.
FAQs & glossary
Answers
Frequently asked
What are the dates and location of DIAM/DDM 2027?
The 2027 edition runs on 17 and 18 November 2027 at the Jahrhunderthalle Bochum, a converted power station in the Westpark area of the city. It is a two-day event, so plan arrival on 16 November if you need a full working day on the opening morning.
What does DIAM/DDM stand for and who organises it?
The show pairs DIAM, the German industrial valves fair, with DDM, the German sealing technology fair. It is organised by Leipziger Messe GmbH with HuT - Messe & Event GmbH, and the official site is diam-ddm.com.
Is DIAM/DDM open to the general public or trade only?
It is a specialist trade event for the valve, seal and process-industry supply chain, so registration as a trade visitor is the normal route. Confirm the current registration form and badge process on diam-ddm.com before you book travel.
Which visitor groups does the Bochum valve and sealing fair target?
Engineers and buyers from chemical, petrochemical, water and wastewater, energy, food and process plant operations, plus valve and seal manufacturers, actuator and automation suppliers, engineering offices and maintenance service providers.
Can I exhibit if I am a sealing or gasket manufacturer rather than a valve maker?
Yes. The DDM half of the show is dedicated to sealing technology, covering gaskets, packing, O-rings, mechanical seals and sealing materials. Stand inquiries go through the organiser contacts listed on diam-ddm.com.
Which airport should I fly into for Jahrhunderthalle Bochum?
Dortmund (DTM) is the closest commercial airport, Duesseldorf (DUS) has the widest range of long-haul and hub connections, and Cologne/Bonn (CGN) is a third option. DUS and CGN both connect to Bochum Hauptbahnhof by train, and the venue is a short tram, bus or taxi ride from there.
How do I get from Bochum Hauptbahnhof to the Jahrhunderthalle?
The venue is in the western part of the city. Use a VRR tram or city bus toward the Jahrhunderthalle/Westpark area, or take a taxi for the short 4-5 km run. Allow extra time on the opening morning and confirm the current line numbers with VRR or the venue before travelling.
What language is used at the show?
The fair is staged in Germany, so most stand staff and technical documentation are in German, with English widely used by export-oriented valve and seal manufacturers. Bring your specification and drawings, since suppliers will quote against DN/PN, material and standard references.
Do I need a visa to attend from outside the EU?
Germany is in the Schengen area. Visa-national business visitors need a Schengen business visa and should carry an invitation letter from the organiser plus an employer cover letter; visa-exempt nationals travel under the 90/180-day short-stay rule. Check your own nationality on the German missions' visa pages.
What is the November weather like in Bochum?
Expect cold, grey Ruhr-region weather: daytime highs typically around 7-10 C, nights around 2-5 C, and drizzle on many days. The halls are indoors, but bring a waterproof coat for the walk from transport and for evening transfers, and note that it gets dark shortly after 16:30 CET.
Glossary
- Armaturen
- The German collective term for valves, fittings and accessories that control or shut off the flow of liquids and gases in a pipeline. It is the core product family at DIAM/DDM, so German exhibitors list their ranges under this heading.
- Shut-off valve
- A valve designed only to open or close flow, not to regulate it, such as gate, ball and butterfly valves. Buyers at Bochum compare shut-off valves mainly on tightness class, cycle life and actuator compatibility.
- Control valve
- A valve with a modulating trim and positioner that regulates flow, pressure or temperature in a loop. Control-valve suppliers at DIAM/DDM typically present characteristic curves, rangeability and Cv/Kv data rather than just hardware.
- Safety valve (pressure relief valve)
- A self-acting valve that opens at a set pressure to protect vessels and pipework. Selection depends on set pressure, blowdown and the applicable PED or DIN/EN requirements.
- Actuator
- The electric, pneumatic or hydraulic unit that drives a valve. Actuator and automation technology is a standing product group at the Bochum fair because most valves are sold as automated assemblies.
- Mechanical seal
- A rotating-shaft seal made of two lapped faces that limits leakage in pumps and agitators. Mechanical-seal makers use DDM to reach pump OEMs and process-plant maintenance engineers.
- Gland packing
- Braided fibre or graphite rope compressed around a valve stem or pump shaft to limit leakage. Packing suppliers compete on emission performance and on how far the packing can be tightened without raising friction.
- Gasket
- A deformable sealing element clamped between flanges or in a joint. Gasket choice depends on media, temperature and bolted-joint load, and it is a core DDM exhibit category.
- O-ring and elastomer seal
- A moulded ring, usually of FKM, EPDM, NBR or silicone, seated in a groove to seal a static or dynamic joint. Material compatibility with the process medium is the main selection question raised at the fair.
- Fugitive emissions (ISO 15848 / TA-Luft)
- Unintended leaks from valve stems, flanges and joints, regulated in Germany under TA-Luft and tested to standards such as ISO 15848. Emission-tight stem sealing is one of the most heavily discussed technical topics at German valve and seal fairs.
- Leak rate and tightness class
- A measured leakage value or class, for example the rate classes used in ISO 15848 or the seat-tightness classes of DIN/EN and API test standards. Exhibitors at Bochum bring test reports to prove their classes.
- Pressure Equipment Directive (2014/68/EU)
- The EU framework for placing pressure equipment, including many valves, on the European market. A CE mark and the correct PED category documentation are a precondition for selling valves into Germany.
- PN and DN
- Nominal pressure (PN) and nominal diameter (DN), the standard size references used on European valves and flanges. Foreign visitors should bring their specification list in PN/DN, not only in ANSI classes.
- Material certificate (EN 10204 3.1)
- An inspection certificate issued by the steel mill confirming the chemical and mechanical properties of the batch. Process and energy buyers routinely require 3.1 certificates from valve and seal suppliers at the point of order.
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Also known as
Alternate names and search phrases for this event.
- DIAM & DDM Bochum 2027
- DIAM 2027
- DIAM Bochum 2027
- DDM 2027
- Bochum Germany
- Industrial Valves Bochum 2027
- Sealing Technology Bochum 2027
- digital transformation expo
- Bochum technology expo 2027
Digital business cards for the show floor
Display a free company card at your booth, or share your professional card on the show floor.