Oil-Sealed Rotary Vacuum Pumps

GHD Series

GHD-031

Outline

This is a rotary blade type vacuum pump that uses lubricating oil. A vacuum pump with low noise, low vibration and high reliability. GHD series uses a magnetic coupling.

Features and Cautions on use

  • Wide range voltage motor and correspond to CE, cTUVus.
  • Magnet coupling for no oil leakage from shaft seal and realized longer lifetime.
  • Integrated check valve below the inlet port for backflow prevention.

Specification

Pumping speed unit

Pressure unit

Item Unit 50Hz 60Hz
Actual Pumping Speed L/min 30 36
Ultimate Pressure Pa 0.67
Motor Output W 100
Recommended oil R-2
Oil capacity mL 370
Weight kg 9.3
Inlet, Outlet port diameter mm KF-16, G3/4
Ambient temperature ℃ 7～40
Overall dimensions mm 120(W) × 288.5(L) × 163(H)
RoHS applied ●

Ultimate pressure is the value measured by Pirani gauge. When measured with a Mcleod vacuum gauge, the value will be an order of magnitude lower for vacuum pumps with an ultimate pressure of 1.3Pa or less.

Outline Drawing

Pumping Speed Curves

Remarks

  • Oil is deteriorated with operating, and becomes the factor of performance shortage. A decrease and the dirt of oil are confirmed, and please regularly add and replace it.
  • This pump has an unti-sack valve function that is effective to
  • prevent the oil back streaming when the pump stops.
  • The function is not 100% guranteed.
  • If operation is performed at high pressure, oil mist is generated at the exhaust side.
  • There is a risk of explosion. Never block the outlet or operate the pump with equipment mounted at the outlet side that blocks the passage of gas. Otherwise, the internal pump pressure increases causing the pump to explode, the oil level gauge to protrude or the motor to be overloaded.
  • It is a pump only in the room. Please do not set it up in the place, that rain and water splash, and outdoors.

Applied optional part items

No. Category name Series Name
1 Power cord Power cord Loose power cord (100-120V type)
2 Power cord Power cord Power cord with plug (100-120V type)
3 Power cord Power cord Loose power cord (200-240V type)
4 Power cord Power cord Power cord with plug (200-240V Europe type)
5 Power cord Unplug-preventive hardware Unplug-preventive hardware (100-120V type)
6 Power cord Unplug-preventive hardware Unplug-preventive hardware (200-240V type)
7 Exhaust Pipe KF Exhaust Pipe KF16 exhaust pipe (KF16×G3/4)
8 Exhaust Pipe KF Exhaust Pipe KF25 exhaust pipe (KF25×G3/4)
9 Exhaust Pipe Hose Port Exhaust Pipe Hose port exhaust pipe (dia.15×G3/4)
10 Exhaust Pipe Hose Port Exhaust Pipe Hose port exhaust pipe (dia.18×G3/4)
11 Adapter for Oil-mist Trap Adapter for Oil-mist Trap
12 Maintenance Kit Maintenance Kit Series Maintenace Kit A for GHD-031
13 Maintenance Kit Maintenance Kit Series Maintenace Kit B for GHD-031
14 Fore-line Trap OFI-050C
15 Fore-line Trap OFI-050V
16 Oil-ｍist Trap OMT Series OMT-050A
17 Vacuum Pump Oil ULVOIL Series R-2 1L
18 Vacuum Pump Oil ULVOIL Series R-2 20L
19 Vacuum Pump Oil ULVOIL Series R-2 4L
20 Suction Pipe Hose Port Suction Pipe Hose port suction pipe (dia.12) for GHD-031
21 Suction Pipe Hose Port Suction Pipe Hose port suction pipe (dia.18) for GHD-031

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