In the simple shut-off, there is only one seal in the one piece valve disc separating the pipelines from one another. This means liquid can pass from one pipeline to the other in the eventuality of a seal defect. For this reason, single-seat shut-off valves are not suitable for separating incompatible products.

Special Features

Certified, hygienic configuration

Metallic stop

Flexibility because of the modular principle

Proven seal geometry

Valve Selection Scheme


  • Single-seat shut-off valves
  • DN 10 – DN 100
  • OD 1" – OD 4"

Technical Data

Type N/ECO

Technical Data of the Standard Version

................: Type N/ECO

Recommended flow direction: From bottom to top

Material in contact with the product: 1.4404 / AISI 316 L

Material not in contact with the product: 1.4301 / AISI 304

Seal material in contact with the produc: EPDM, FKM, HNBR

Ambient temperature: 0 to 45 °C

Air supply pressure: 6 bar (87 psi)

Product pressure: 5 bar (73 psi)

Surface in contact with the product: Ra ≤ 0.8 μm

External housing surface: Matte blasted

Control and feedback system: Connection 0 (without control top)

Actuator type: Pneumatic actuator air / spring

Connection fittings: Welding end

Identification: Adhesive ID tag

Valve seat version: Clamped or welded seat ring

Certificates: A3, CE

Valve Selection Scheme

Valve Selection Scheme

Valve Selection Scheme: from Bottom to Top: from Bottom to Top
Feature: Compact Design: Small Nominal Width DN 10 or DN 15
Type: Single-seat Valve, Type N/ECO:  Single-seat Valve, Type N/ECO small

Application Examples

In practical use, these valves are used


  • as emptying / drainage valves
  • for shutting off a bypass line
  • as dosing valves

The ECOVENT® small valve type N / ECO in nominal widths DN 10 or DN 15 is predominantly used as a feed valve for supplying the spray cleaning of double-seat valves.