Hydraulic Gear Pump
Tandem Gear Pump & Their Features:
The basic form of hydraulic tandem gear pump is that two gears of the same size engage and rotate each other in a closely matched shell. The inner part of the shell is similar to the "8" shape. Two gears are installed inside, and the outer diameter and sides of the gear are closely matched with the shell. Material from the extruder enters into the middle of the two gears at the suction port and fills the space. It moves along the shell with the rotation of the teeth, and finally discharges when the two teeth engage.
In terminology, tandem gear pump is also called positive displacement device, that is, like a piston in a cylinder, when one tooth enters the fluid space of another tooth, because the liquid is incompressible, so the liquid and the tooth can not occupy the same space at the same time, so the liquid is mechanically squeezed out. Because of the continuous meshing of teeth, this phenomenon occurs continuously, thus providing a continuous exclusion quantity at the outlet of the pump. Every turn of the pump, the discharge quantity is the same. With the uninterrupted rotation of the drive shaft, the pump also discharges fluid uninterruptedly. The flow rate of the tandem gear pump is directly related to the speed of the pump.
External Gear Pump
In fact, there is a small amount of fluid loss in the pump, because these fluids are used to lubricate both sides of bearings and gears, and the pump body is never able to cooperate without clearance, so the fluid can not be discharged 100% from the outlet, so a small amount of fluid loss is inevitable, which makes the operation efficiency of the pump can not reach 100%. However, the external gear pump can still run well, and for most extruded materials, the efficiency can still reach 93%-98%.
PGP620B0360CE1H3M-N6D5C-6200290AB1D4
Shaft Type: SAE B Involute Spline 15Z*16/32DP*30R
Rotation: Right
Speed: 2400RPM(Min:500;Max:3500)
Front Pump Pressure: 25MPa
Rear Pump Pressure: 27.5MPa
Front Pump Displacement: 36 ml/r
Rear Pump Displacement: 29 ml/r
Price: $270~$300
2PRO44T7B1B1T4-250-CS1A4E
Reference Price: $160~$180
1.Shaft: SAE Spline 13Z*16/32DP*30R
2.Rotation: Right(Clockwise)
3.Speed: 2400 RPM (Min 500; Max 3500)
4.Pressure: 25 MPa
5.Displacement: 44 ml/r
6.Max pressure: 250 bar(3625 psi)
Model: PGP031B197*BI**12-25**AB05-1
Reference Price: $280
Unit:Double unit
Shaft end cover: No shaft bearing, SAE 2 Bolt B Mount
Front Gear Width:1.25" , Front Housing Width: 2"
Rear Gear Width:0.5", Rear Housing Width: 1.25"
Pressure: 2500PSI
Displacement: 40.4ml/r + 16.1 ml/r
Model: PGP315A193BPAB06-60
Reference Price: $155
Unit:Single unit
Shaft end cover: No shaft bearing, 76/31 Piggy back mount.
Gear Width:0.625"
Pressure: 3500PSI
Displacement: 12.78ml/r
Model: PGP315A690*DREB10-66*
Reference Price: $155
Unit:Single unit
Shaft end cover: 31/51 Piggy back mount
Gear Width:1"
Displacement: 20.32 ml/r
Pressure: 3500PSI
Shaft Type: SAE "B" Spline
Model: PGP315B190**AB10-60**AB05-1**A
Reference Price: $270
Unit:Double unit
Shaft end cover: 31/51 Piggy back mount
Rotation: Clockwise
Fornt Gear Width:1"
Front Displacement: 20.32 ml/r
Rear Gear Width:0.5"
Rear Displacement: 10.16 ml/r
Pressure: 3500PSI
Model: PGP315B193PZ*AB10-65HY*AB05-1
Reference Price: $270
Unit:Double unit
Shaft end cover: 76/31 Piggy back mount
Rotation: Clockwise
Fornt Gear Width:1"
Front Displacement: 20.32 ml/r
Rear Gear Width:0.5"
Rear Displacement: 10.16 ml/r
Pressure: 3500PSI
Model: PGP315B196BIAB15-66BDAB15-1
Reference Price: $270
Unit:Double unit
Shaft end cover: SAE 2 bolt "B" mount type 2
Rotation: Clockwise
Fornt Gear Width:1.5"
Front Displacement: 30.48 ml/r
Rear Gear Width:1.5"
Rear Displacement: 30.48 ml/r
Pressure: 3300PSI
Model: PGP315B196PWAB20-65**AB15-1
Reference Price: $270
Unit:Double unit
Shaft end cover: SAE 2 bolt "B" mount type 2
Rotation: Clockwise
Fornt Gear Width:2"
Front Displacement: 40.64 ml/r
Rear Gear Width:1.5"
Rear Displacement: 30.48 ml/r
Pressure: 2500PSI
Model: PGP315B296YPAB16-65TKAB17-1**
Reference Price: $270
Unit:Double unit
Shaft end cover: SAE 2 bolt "B" mount type 2
Rotation: Counter Clockwise
Fornt Gear Width:1.625"
Front Displacement: 33.1 ml/r
Rear Gear Width:1.75"
Rear Displacement: 35.56 ml/r
Pressure: 2900PSI
