G25 series

High quality new genre pumps
The genesis of a new era is upon us.
Yamada Corporation has combined genius technology and engineering with next generation manufacturing to produce the newest genre of high quality pumps.
The G25 series is now globally available for general industrial market applications.
The G25 series has a nominal diameter of 1" (25 mm) and a maximum flow rate of approximately 150 L/min.

■ Main Applications
Pumping Out Sprays, Factory Wastewater, and Waste Oil/Supplying Oil, Coolant Fluid, Paint, Etc./Alcohol/Transfer of Ethanol/Pumping Out Sprays, Factory Wastewater, and Waste Oil/Transfer of Flammable Liquids in Explosion-proof Areas/Transfer of Inks and Pigments/Mounting on Equipment/Transfer of Lubricant and Hydraulic Oil/

Features

New Switching System: Newly designed anti-stall S-Spool
Employs new-design switch mechanism S-Spool.
The high-performance and high-reliability new air switch valve mechanism minimizes the risk of the pump stalling.

◆ Air Switch Valve “S-Spool”

・ S-Spool (Step spool) + New Center Rod Prevents Stoppages during Operation
The risk of stoppages during operation is minimized even during low-stroke.
・Design without Pilot Valve
Fewer parts = fewer failures.
Ease of repair – Quick teardown / Rebuild

・Completely Oil-free
Does not require regular lubrication.
stepspool.jpg pilotvalve.jpg oilfree_s.jpg


■ Truly non-lubricated (no greasy pre-pack) /maintenance free air distribution system.

■ Ice Free operation

■ 20% air consumption over competitor's pumps

Specifications

Model G25AN G25AH G25AS G25AT
Material
Casing Material Aluminum
Diaphragm Materials NBR TPEE TPO PTFE
Specifications
Nominal Diameter 1" (25mm)
Suction Port
Rc 1 [NPT 1]
Discharge Port Rc 1 [NPT 1]
Supply Port Rc 3/8 [NPT3 / 8]
Exhaust Port Rc 3/4 [NPT 3/4]
Operating Air Pressure 0.2 ~ 0.7 MPa
Maximum Discharge Pressure 0.7 MPa
Discharge Volume / cycle * 1 600ml 450ml
Maximum Discharge Volume 150L / min 130L / min
Maximum Air Consumption 1400L / min (ANR)
Slurry Limitation 3mm max.
Suction Lift 3 Pa ・ s max
Force In 8 Pa ・ s max
Environmental Temperature 0-70 ℃
Liquid Temperature NBR: 0-70 ℃
TPEE: 0-80 ℃
TPO / PTFE: 0-100 ℃
A-weighted Sound Pressure Level * 2 81.0 dB
A-weighted Sound Power Level * 3 94.5 dB
Weight 9.2kg

* 1: Discharge Volume / cycle is highly dependent on application. Please contact your local distributor or Yamada for more information.
* 2: Measurement method of A-weighted sound pressure level is based on ISO 1996.
* 3: Measurement method of A-weighted sound power level is based on ISO 3.8 6.

Dimentional drawing

Performance curve

Downloads

Download LiteratureCatalogs and Various Manuals

◆ Performance Curve

◆ Dimensional Drawings

Parts List

Body Material N: Buna N
(NBR)
H: Hytrel(R)
(TPEE)
S: Santoprene(R)
(TPO)
T: PTFE
Diaphragm Material
A: Aluminum
(ADC12)
G25AN
(854994)
G25AH
(854998)
G25AS
(855000)
G25AT
(854996)
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