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Regulating throttle DR-65 / 50×21

Regulating throttle DR-65 / 50×21


The throttle is designed for stepless regulation of the liquid flow rate by smoothly changing the flow area of ​​the Insert by means of axial movement of the stem.

It is used when it is necessary to continuously regulate the flow rate of liquid in flowing and injection wellhead fittings, high-pressure pipelines, flow lines of pumping units.


Maximum working pressure, MPa (kg / cm²) 21 (210) / 35 (350)
Connecting thread, mm NKT60
Ambient temperature, ° С -60 …. + 48
Conditional pass 20
Total service life, years 15