PROJECTEnquire ↗Connecting process equipment
Piping is more than a list of tubes and valves. It must carry the medium under defined conditions, accommodate system movement and provide maintenance access.
Operating context
A new route or modification combines the process diagram, spatial layout and specification of each line. Installation planning must include connections to the operating plant, component transport and access to work areas during the shutdown.
Engineering priorities
A survey verifies positions, elevations, connections and surrounding obstructions. Engineering addresses supports, thermal expansion and loads at equipment connections. Forcing components into alignment cannot replace correct geometry.
Medium, pressure, temperature and environment determine requirements for pipes, joints and gaskets. Welding and inspection must suit the material and applicable equipment regime. The description stainless steel alone is insufficient to establish suitability.
Prefabrication can reduce site work when input dimensions are reliable. Work boundaries, inspection points, change records and conditions for return to service must be agreed before installation begins.
Buried metallic pipelines and tanks can include cathodic protection and related service. The brief considers coating condition, electrical continuity and external influences. We define test locations, measurements and interfaces with the existing protection system.
Metal bellows, lens-type and rubber expansion joints are specified for movement direction and magnitude, cycle count and service conditions. Design includes anchors, guides and allowable connection loads. An expansion joint is not selected by its face-to-face length alone.
Borescope inspection can reveal selected internal pipe or equipment surfaces without complete dismantling. Entry points, required views, cleanliness and location referencing are defined before inspection.
Supply boundaries
Before engineering
Agreed with the proposal
The actual scope and acceptance criteria depend on the application and contract.
Selection in context
First define control, isolation or reverse-flow prevention, then evaluate the valve, actuator and all operating conditions together.
On a small screen, scroll the table sideways to compare the selection criteria.
| Principle or option | Typical application | What to verify when selecting |
|---|---|---|
| Globe control valve | Continuous flow, pressure or temperature control through an adjustable flow area. | Kv/Cv at operating points, characteristic, cavitation or flashing, noise, shut-off leakage and actuator thrust.[1][2] |
| Ball valve | Quarter-turn pipeline isolation; throttling requires a design intended for control duty. | Bore and pressure loss, seats and seals, torque, cycling frequency and required position on loss of power.[3][2] |
| Butterfly valve | Compact isolation or control where face-to-face length and weight are important. | Design and seat type, permitted differential pressure, disc clearance, shut-off leakage and torque throughout travel.[3][2] |
| Check valve | Automatic reverse-flow prevention, for example on a pump discharge. | Opening conditions, flow range, orientation, pressure loss and response to rapid flow changes.[4] |
Reviewed on 18 October 2026. Selection is confirmed for the specific operating conditions and equipment design.
Selection in context
Assess the complete fluid composition including impurities, concentration, temperature and loading; a material family designation alone does not establish product suitability.
On a small screen, scroll the table sideways to compare the selection criteria.
| Principle or option | Typical application | What to verify when selecting |
|---|---|---|
| Carbon steel | Piping and welded vessels where mechanical design and corrosion assessment support its use. | Specific grade, toughness at design temperature, weldability, and corrosion protection or allowance.[1] |
| Austenitic stainless steel, e.g. 304L | Process piping and tanks requiring cleanability and resistance in an assessed environment. | Chlorides and other impurities, cleaning chemicals, surface finish, crevices and weld-area condition.[3][2] |
| Austenitic stainless steel, e.g. 316L | An option considered for greater corrosion demands than standard chromium-nickel grades. | The corrosion mechanism, temperature, concentration and cleaning regime; this grade is not universally chloride-resistant.[3][2] |
| Duplex stainless steel | Equipment where corrosion resistance and mechanical strength are considered together. | Specific duplex grade, service environment, welding procedure and thermal effects; properties vary across the family.[2] |
| Polypropylene, PP-H | Chemical piping and water treatment where the fluid and service conditions are suitable. | Chemical resistance, allowable pressure versus temperature and service duration, expansion, supports and jointing method.[4] |
| Polyvinylidene fluoride, PVDF | Selected chemical and clean-process piping with specific system material requirements. | Resistance to the actual mixture, pressure and temperature, process cleanliness requirements, and joint and seal compatibility.[4] |
Reviewed on 18 October 2026. Selection is confirmed for the specific operating conditions and equipment design.
Relevant experience
Project 667 · Process plant upgrades
Installation location: Lovosice, Czechia · 2024
Replacement of a 3.9 m³ reactor on a +6 m platform, including agitator assembly and modification of 15 pipe runs.
Broader project portfolioEquipment replacement, installation and connection
Project 674 · Process plant upgrades
Location: Rybitví, Czechia · 2024
New vacuum assembly with PP tanks, heat exchangers, piping, instrumentation and controls.
Broader project portfolioProcess equipment refurbishment and installation
Project 751 · Custom manufacturing
Project location: Šaľa, Slovakia · 2024
One grade 1.4306 stainless steel ammonia distributor, with a net shipping mass of 270 kg and documented weld examinations.
Broader project portfolioCustom manufacture and supply
Connected disciplines
Related technologies
Before we start
After checking that they reflect the installation. Current survey data are especially important at tie-ins and in restricted areas where unexpected changes are difficult to accommodate.
No. The system, applicable regime and approved procedure determine inspection type, scope and conditions. A website description does not replace the test plan.
Only within the allowance explicitly included in its design. Permanent installation offset can reduce available working movement and service life and must be assessed with the support arrangement.
Your next project
Send your drawings, operating parameters or a short description of the change you need. We will review the technical interfaces and propose the next steps towards a quotation, clarifying any missing information with you.
Discuss your requirements ↗Prepare a technical brief →+420 731 771 147info@emkoproject.cz
