• Stainless spring is used for a better corrosion resistance.
• Two-Shift adjustable gas ballast valve satisfies different requirements of condensable vapor(such as water vapor) to be exhausted out of pump in different processes.
• Dual protection of oil anti-suckback ensures vacuum system from oil pollution when pump stops running and needs to be easily restarted.
• Forced oil circulation system consisted of oil pump and constant pressure oil supply mechanism ensures stable running of the pump.
• Less components are used, easy to maintain and repair.
Model: VRD 8M, 16M, 24M, 30M, 48M, 65M
Ambient temperature (ºC): 10 - 40 ºC
Motor speed (rpm):
- 50Hz: 1440 rpm
- 60Hz: 1720 rpm
Model: VRD 8M
Displacement speed m³/h (50Hz): 8(2.2) Hz
Displacement speed m³/h (60Hz): 9.6(2.6) Hz
Ultimate partial pressure gas ballast dose (Pa): 5x10⁻² Pa
Ultimate total pressure gas ballast dose (Pa): 5x10⁻¹ Pa
Model: VRD 16M
Displacement speed m³/h (50Hz): 16(4.4) Hz
Displacement speed m³/h (60Hz): 19.2(5.2) Hz
Ultimate partial pressure gas ballast dose (Pa): 4x10⁻² Pa
Ultimate total pressure gas ballast dose (Pa): 5x10⁻¹ Pa
Model: VRD 24M
Displacement speed m³/h (50Hz): 24(6.6) Hz
Displacement speed m³/h (60Hz): 28.8(7.9) Hz
Ultimate partial pressure gas ballast dose (Pa): 4x10⁻² Pa
Ultimate total pressure gas ballast dose (Pa): 4x10⁻¹ Pa
Model: VRD 30M
Displacement speed m³/h (50Hz): 30(8.3) Hz
Displacement speed m³/h (60Hz): 36(9.9) Hz
Ultimate partial pressure gas ballast dose (Pa): 4x10⁻² Pa
Ultimate total pressure gas ballast dose (Pa): 4x10⁻¹ Pa
Model: VRD 65M
Displacement speed m³/h (50Hz): 65(18) Hz
Displacement speed m³/h (60Hz): 78(21.6) Hz
Ultimate partial pressure gas ballast dose (Pa): 4x10⁻² Pa
Ultimate total pressure gas ballast dose (Pa): 4x10⁻¹ v Pa