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Low pressure gear pump KF2.5...630-KF2.5...630
Low pressure gear pump KF2.5...630-Nippon Mekuman Co., Ltd.

Low pressure gear pump KF2.5...630
Nippon Mekuman Co., Ltd.


About This Product

■Product characteristics

Gear pump KF is used to pump various fluids. Due to its modular principle, it can be assembled according to requirements and can be subsequently upgraded, making it unique in its wide variety of ranges. It is also suitable for fluids with low lubricity. The standard housing part is made of gray cast iron. The gear unit is rigidly constructed from high-strength case-hardened steel and mounted on special composite plain bearing bushes. The standard drive shaft is sealed with a single radial lip type seal. All pump sizes feature a helical gear system, with a special gear geometry that keeps noise levels extremely low and reduces pulsation.

■Driving precautions

・Make sure that the fluid used has a certain level of lubricity. Please also ensure that it does not contain solids and is scientifically compliant. ・Avoid dry running. - Operate the pump only in the specified direction of rotation. This may cause damage to the shaft seal. -Install a safety valve on the system or pump to prevent excessive pressurization. - Please use the relief valve attached to the pump only as a safety valve during short-term operation. - If part of the discharge flow needs to be drained for a long period of time, a separate external relief valve must be installed on the return line to the reservoir tank.

■Variation

・Drive shaft sealing: Single radial lip type seal, double radial lip type seal, mechanical seal ・Non-drive side bearing for taking in drive side axial load input ・Pressure valves for pumps and systems ・Universal type where the fluid flow direction does not change even if the gear rotation direction changes.

■Special design

For special applications, various shaft ends, gear units, flange mounting types, bearings, multi-stage pumps etc. are available on request.

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    Low pressure gear pump KF2.5...630

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1 Models of Low pressure gear pump KF2.5...630

Image Part Number Price (excluding tax) Noise level p=5bar (dB (A) ) Noise level p=25bar (dB (A) ) Noise level p=15bar (dB (A) ) Drive shaft end Piping connections Speed ​​range nmin (1/min) Speed ​​range nmax (1/min) Speed ​​(1/min) Viscosity Vmin Viscosity Vmax Theoretical displacement Vg (㎤/r) Material plain bearing Material Housing and cover Material Shaft Seal Material gear Material O-ring Maximum load Fradial (N) n=1,500 1/min Maximum pressure Pmax (bar) Recommended speed Fixed type Rotation direction Nominal size (㎤/r) Mounting position Working pressure Pressure side Pn Working pressure Pb (bar)
Low pressure gear pump KF2.5...630-Part Number-KF2.5...630

KF2.5...630

Available upon quote

≦65~78

≦67~80

≦66~78

ISO R 775 short cylindrical

・KF2.5~25: Whitworth pipe thread, SAE flange
・KF32~630:SAE flange

200

3,600~2,000

・KF2.5~63:200~3,600
・KF80~180:200~3,000
・KF200:200~2,500
・KF250~630:200~2,000

1.4~12mm2/s (depending on pressure and rotation speed)

20,000mm2/s (depending on pressure and rotation speed)

2.55~622.5

DU (multilayer friction bearing) *Please contact us for bearings that do not contain non-ferrous metals.

・EN-GJL-250 (GG25)
・EN-GJS-400-15 (GGG40)

・Single radial lip type seal: NBR, FKM, PTFE, EPDM, low temperature FKM
・Mechanical seal

Steel 1.7139

NBR, FKM, PTFE, EPDM, low temperature FKM *Please contact us for other sealing materials.

700~2,500

40~30

Pump speed must be selected to ensure complete pump filling. The condition is that the relative pressure at the pump inlet does not fall below 0.4 bar.

Flange

・Right or left
・Right and left

2.5/4/5/6/8/10/12/16/20/25/32/40/50/63/80/100/112/125/150/180/200/250/315/400/500/ 630

・KF~R/L/B: Optional option without cooling function
・KF~R/L/B: Quench horizontal, quench top connection
・KF~U2:Option

Max. 25 bar (higher pressure available on request)

Twenty five

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