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This is a rotary blade type vacuum pump that uses lubricating oil. A vacuum pump with low noise, low vibration and high reliability. GLD series is a high-performance type.

Item	Unit	50Hz	60Hz
Actual Pumping Speed	L/min	280	336
Ultimate Pressure	Pa	0.67
Ultimate Pressure (G.V. open)	Pa	6.7
Motor Output	W	700
Recommended oil		R-72
Oil capacity	mL	700～1,100
Weight	kg	34.5
Inlet, Outlet port diameter	mm	KF-25, G1
Ambient temperature	℃	7～40
Overall dimensions	mm	181(W) × 536(L) × 269(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.

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.

No.	Category name	Series	Name
1	Adapter		KF25 Adapter (M20 Female)
2	Adapter	Adapter	50mm sq Adapter (M20 Female)
3	Exhaust Pipe	KF Exhaust Pipe	KF25 exhaust pipe (KF25×G1)
4	Exhaust Pipe	Hose Port Exhaust Pipe	Hose port exhaust pipe (dia.27×G1)
5	Maintenance Kit	Maintenance Kit Series	Maintenace Kit A for GLD-280/280A/280B
6	Maintenance Kit	Maintenance Kit Series	Maintenace Kit B for GLD-280/280A/280B
7	Vacuum Pump Oil	ULVOIL Series	R-72 2.2L
8	Vacuum Pump Oil	ULVOIL Series	R-72 20L
9	Vacuum Pump Oil	ULVOIL Series	R-72 8L
10	Suction Pipe	R1/4 Suction Port	A-type suction pipe (R1/4-L20 Male ×M20)
11	Suction Pipe	R1/4 Suction Port	B-type suction pipe (R1/4 Female ×M20)
12	Suction Pipe	R1/4 Suction Port	C-type suction pipe (R1/4-L10 Male × M20)
13	Suction Pipe	KF25 Suction Port	KF25 suction pipe (KF25×M20)
14	Suction Pipe	KF25 Suction Port	KF25 suction pipe(KF25×50mm sq)
15	Suction Pipe	Hose Port Suction Pipe	Hose port suction pipe (dia.12×M20)
16	Suction Pipe	Hose Port Suction Pipe	Hose port suction pipe (dia.15×M20)
17	Suction Pipe	Hose Port Suction Pipe	Hose port suction pipe (dia.18×M20)
18	Suction Pipe	Hose Port Suction Pipe	Hose port suction pipe (dia.22×M20)
19	Suction Pipe	Hose Port Suction Pipe	Hose port suction pipe (dia.27×50mm sq)
20	Suction Pipe	Hose Port Suction Pipe	Hose port suction pipe (dia.8 × M20)
21	Oil-ｍist Trap	OMT Series	TMX-1

Oil-Sealed Rotary Vacuum Pumps

GLS/GLD Series

GLD-280A