InterApp supplier in Romania
For InterApp we quote Bianca PTFE-lined and Desponia elastomer-lined butterfly valves, TLBVA23 ball valves and IA motion actuators; we need the series, the DN size, the pressure and the fluid.
Headquarters: Rotkreuz, Switzerland
Who is InterApp and what does it make?
InterApp produces lined concentric butterfly valves, metal-body ball valves, check valves and manual and pneumatic actuators for the transport of liquids, gases and solids. The headquarters is in Rotkreuz, Switzerland. For a quotation, please send the series name from the valve (for example Bianca or Desponia), the nominal diameter DN, the nominal pressure PN, the lining and disc material and the body type.
The Bianca butterfly valve has a PTFE lining and serves corrosive fluids and high-purity applications: DN 32–900, up to 16 bar and −20…+200 °C, ductile iron or stainless steel body, in wafer, lug or U design. The lining can be PTFE, conductive PTFE, Ultraflon or Ultralene, and the disc in PFA, stainless steel, Hastelloy or duplex. Variants exist for areas with explosion hazard, LABS-free (free of paint-wetting impairment substances) and with fugitive emissions tested to EN ISO 15848-1.
The Desponia butterfly valve has an elastomer lining (EPDM, NBR, FPM, CSM, silicone and others) and covers DN 25–1600, with grey or ductile iron body and temperatures of −20…+200 °C, depending on the lining. Desponia has approvals for drinking water (DVGW, ACS, NSF-61, SVGW, WRAS) and for gas (DVGW). The range also includes Aquaria plus, Elara and Saturnia butterfly valves, triple-offset butterfly valves for hydrogen, TLBVA23 and BVA23 ball valves, Rhea and Neptunia check valves, IA motion pneumatic actuators and HLA, HLP and GB N manual actuators. For the electronics industry there are grease-free butterfly valves for ultrapure water.
What do we supply from the InterApp range?
| Product | Description |
|---|---|
| Bianca PTFE-lined butterfly valves | Concentric butterfly valves for corrosive fluids and high-purity applications, DN 32–900, PN 2.5–16, up to 200 °C. Ductile iron or stainless steel body, wafer, lug or U, with disc in PFA, stainless steel, Hastelloy, duplex or a polished all-metal disc. |
| Desponia butterfly valves with elastomer lining | Concentric butterfly valves with EPDM, NBR, FPM, CSM, ECO or silicone lining, plus white and blue linings for the food industry. DN 25–1600, grey or ductile iron body and approvals for drinking water and gas. |
| Metal-body ball valves | Ball valves from the TLBVA23, TLBVA23A, BVA22, BVA23, BVH23 and BVT/BVL34 series, for isolation in process pipework. We determine the exact series, connection and seal material from the code on the valve or from the fluid, pressure and temperature. |
| Check valves and actuators | FPCV, WPCV, DCV, Rhea and Neptunia check valves, including dual-plate types, together with IA motion pneumatic actuators and HLA, HLP, GB N and GB232 manual actuators for the butterfly and ball valves in the same installation. |
Why InterApp?
- Bianca with PTFE lining: corrosive fluids and high purity, DN 32–900, up to 16 bar and −20…+200 °C
- Desponia with elastomer lining and discs in various materials: DN 25–1600, from drinking water and gas to bulk materials
- Approvals for drinking water (DVGW, ACS, NSF-61, SVGW, WRAS) and for gas (DVGW) on Desponia
- Conductive and ATEX, grease-free and LABS-free versions, for areas with explosion hazard, paint shops and electronics
- Bidirectional sealing and fugitive emissions tested to EN ISO 15848-1 on Bianca
Which InterApp codes and series are requested most often?
| Code | Description |
|---|---|
| Bianca | PTFE-lined concentric butterfly valve, DN 32–900 |
| Desponia | Concentric butterfly valve with elastomer lining, DN 25–1600 |
| Desponia plus | Variant of the Desponia butterfly valve |
| Aquaria plus | Metal-body butterfly valve |
| Elara | Metal-body butterfly valve |
| Saturnia | Metal-body butterfly valve |
| TLBVA23 | Metal-body ball valve |
| BVA23 | Metal-body ball valve |
| Rhea | Metal-body check valve |
| Neptunia | Metal-body check valve |
| IA motion | Pneumatic actuator for quarter-turn valves |
| HLA | Manual actuator for butterfly valves |
| GB N | Manual actuator with gearbox |
| MNH 310 | Pilot solenoid valve for controlling actuators |
Where is InterApp equipment used?
- Water and sewerage: Desponia valves with drinking water approvals
- Chemicals: Bianca PTFE-lined valves for corrosive fluids
- Electronics and semiconductors: grease-free butterfly valves for ultrapure water
- District heating and cooling: Desponia butterfly valves on heat carrier distribution networks
- Energy and hydrogen: triple-offset butterfly valves for H2
How do we supply InterApp in Romania?
We quote InterApp Bianca and Desponia butterfly valves, metal-body ball valves, check valves, IA motion pneumatic actuators and manual actuators, as well as replacement linings and discs. For an exact quotation, send us the series and code from the valve or, if they can no longer be read, the DN size, the pressure, the fluid and temperature, the body type (wafer, lug or U), the lining material and the method of actuation. The valves are brought in to order, through EU supply channels, usually in 1–4 weeks; those can ship in 24–72 h when the item is available locally or at the supplier.
For InterApp valves installed a long time ago, we check replacement linings and discs on request, by series and diameter; installation on the pipeline and adjustment of the actuator are not included in our offer.
Frequently asked questions about InterApp
What does InterApp produce?
InterApp produces Bianca (PTFE-lined) and Desponia (elastomer-lined) concentric butterfly valves, triple-offset butterfly valves for hydrogen, metal-body ball valves, check valves, IA motion pneumatic actuators and manual actuators. The headquarters is in Rotkreuz, Switzerland.
How do I choose between Bianca and Desponia butterfly valves?
Bianca, PTFE-lined, is chosen for corrosive fluids and high purity, at DN 32–900 and up to 16 bar. Desponia, with an EPDM, NBR, FPM or other elastomer lining, covers DN 25–1600 and serves drinking water, treatment plants, gas and bulk materials. Send us the fluid, temperature and pressure and we choose the lining and disc.
Do you supply InterApp valves in Romania and how long does it take?
Yes, InterApp valves and actuators are brought in to order, usually in 1–4 weeks, and a valve of a common diameter can ship in 24–72 h when the item is available locally or at the supplier. For large diameters, special linings or ATEX versions, depending on brand and specifications, the lead time can be longer.
Can I replace only the lining of an InterApp butterfly valve?
On many concentric butterfly valves the lining can be replaced. Send us the series (Bianca or Desponia), the DN size, the current lining and disc material and a photo of the nameplate; we check whether a replacement lining exists or whether it is safer to replace the whole valve.
What details should I send for a quotation for a pneumatically actuated InterApp valve?
Send the DN size, nominal pressure, fluid and temperature, body type (wafer, lug or U), control air pressure, actuator function (double acting or spring return) and the accessories wanted, such as the pilot solenoid valve and the limit switch box. For areas with explosion hazard, state the ATEX category.
How do I request a InterApp quotation?
Send the InterApp code from the nameplate and the quantity; we reply in English with availability and the lead time written in the quotation.
Request a quoteUpdated: 12 November 2026 · Sources: InterApp AG (manufacturer documentation)