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Check Valve KO3-89 (108)

Check Valve

KO3-89 (108)


The check valve is intended for use as part of wellhead valves in order to maintain a given pressure drop between the pipeline lines, as well as to prevent the overflow of the working fluid in the opposite direction.

Possibility of reliable operation in the range of operating pressures from 0 to 35 MPa (KO1) due to the use of a special seal.

Reduced the possibility of freezing due to the absence of internal unfilled volumes. Improved hydraulic performance.

The main shut-off elements are made of corrosion-resistant steel and polyurethane.

Name KO 3-89 KO 3-108
Working pressure in the pipeline Рн, MPa (kg / cm²) 14 (140)
Nominal bore Dн, mm 14.5
Overall and connecting dimensions, mm D 89 108
d 65 84
L 340 360
Working environment temperature, ° С 120
Weight, kg eleven 13.5
KO3 (Cхема)
  1. Valve
  2. Housing
  3. Fitting
  4. Nut
  5. Spring
  6. Plug
  7. Ring sealing
  8. Draining  valve