Home

Products

25V vane pump, lower noise

Key words:Hydraulic tools

Category:

V-series low noise vane pumps

E-mail:

Tel:

Details

Specification

Subsidiary Series	Displacement Code	Geometry Displacement mL/r	Use anti-wear oil or Phosphate ester liquid		Water-ethylene glycol liquid		Oil-in-water emulsion		Min.speed r/min	Weight Kilograms
			Max.pressure MPa	Max.speed r/min	Max.pressure MPa	Max.speed r/min	Max.pressure MPa	Max.speed r/min
25V	10	32.5	17.5	1800 (1200)	16	1500	7	1200	600	25
	12	40
	14	43
	15	45
	17	55
	19	59
	21	67
	25	78.6	14		14

Note: ①When the working fluid is phosphate ester liquid, use special seal (FPM), add prefix [F-] before the specified model when ordering. ②Transient (peak) pressure exceeding 10% of the maximum pressure rating can last for 0.5 seconds.

②Transient (peak) pressure exceeding 10% of the maximum pressure rating can last for 0.5 seconds.

Model Code

Installation and Use

1. During installation, the concentricity tolerance between the pump shaft and the motor must be less than 0.10mm (TIR), the maximum allowable angular error must be less than 0.2 degrees, and a flexible coupling must be used; the pump shaft must not bear radial and axial loads; the bracket must be strong and rigid, and able to fully absorb vibration.

2. Secure the pipeline, especially the inlet pipe, according to the size of the diameter, and install a safety relief valve in the system (inlet flow rate between 0.5 and 1.5 m/s). The set pressure of the safety valve must not exceed the maximum pressure of the pump; the inlet pipe must be strictly sealed and must not leak; the oil tank should be equipped with a diaphragm to separate bubbles and dirt from the oil; the oil return nozzle should be below the liquid level, with a minimum depth of 50mm, even at low positions, to avoid bubble formation.

3. Set the suction pressure at the pump inlet: Hydraulic oil for hydraulic oil is +35~ -16.7 KPa. Hydraulic oil for water-ethylene glycol and phosphate ester is +35~ -10.1 KPa.

4. If the pump is installed on the oil tank or above the oil tank cover, the suction height of the pump should be less than 500mm.

5. The oil should be kept clean, and the pipelines and oil tank must be thoroughly cleaned; a precision filter should be installed in the system, with a recommended accuracy of 25μm, and the oil cleanliness should be within NSA12. A filter with sufficient capacity (rated flow rate should be more than twice the pump flow rate) should be fixed 50mm above the bottom of the oil tank at the pump inlet, with a recommended accuracy of 100μm (150 mesh).

6. It is recommended to use anti-wear industrial hydraulic oil or automotive crankcase oil with the letter designation SC, SD, SE, or SF, with a viscosity grade of 32 to 68 cSt at 40℃.

Preferred viscosity at rated speed and pressure:

Minimum 13cSt Maximum 54cSt

Minimum 49℃ Maximum 65℃

7. Check the inlet, outlet, and rotation direction before starting the pump. After fixing the pump, manually rotate the pump shaft evenly and flexibly. It is best to fill the pump with oil for the first use.

In the initial operation or operation after a long rest, the pump may have difficulty sucking in liquid; in this case, a vent valve should be installed on the discharge side in advance, or the air should be discharged by slightly loosening the connection on the discharge side. When starting, try to operate the pump intermittently without load.

8. Do not start the pump when the outlet pressure is lower than the inlet pressure. This will cause operating noise and blade instability.

9. When starting, if the viscosity of the oil is higher than the suitable viscosity (54cSt), the pressure should be limited to 50% or less of the respective rated value until the system warms up.

Installation Connection Dimensions

◎ Key Shaft

Model	Shaft Cooling	A	B	C	D	E	F Key Width × Length
25V	1	59	9.5	11.0	22.225/22.20	24.5/24.35	4.75×32
	2	73.2	9.5	11.0	27/26.975	30.45/30.32	7.94×40
	86	78	9.5	11.0	25.4/25.37	28.3/28.2	6.35×50.8

◎ Spline Shaft

Model	Shaft Cooling	A	B	C	D	E	Spline Data
							Number of Teeth Number of Teeth	Pitch	Major Diameter Minor Diameter	Square Root Minor Diameter	Matching 16/32
25V	11	44.5	9.5	11.1	3.9	27.8	13	22.17/22.15	18.63/18.35	Major Diameter Fit	Large diameter fit

Get Quote

Welcome to leave a message, there may be a discount

Note: Please leave your contact information and our professionals will contact you as soon as possible!

Submit Message

COOKIES

Our website uses cookies and similar technologies to personalize the advertising shown to you and to help you get the best experience on our website. For more information, see our Privacy & Cookie Policy

COOKIES

required

These cookies are necessary for basic functions such as payment. Standard cookies cannot be turned off and do not store any of your information.

analyze

These cookies collect information, such as how many people are using our site or which pages are popular, to help us improve the customer experience. Turning these cookies off will mean we can't collect information to improve your experience.

Feature

These cookies enable the website to provide enhanced functionality and personalization. They may be set by us or by third-party providers whose services we have added to our pages. If you do not allow these cookies, some or all of these services may not function properly.

advertise

These cookies help us understand what you are interested in so that we can show you relevant advertising on other websites. Turning these cookies off will mean we are unable to show you any personalized advertising.

HOTLINE:

Tel: +86-13968563323 / 13958514945

Add :

No. 118, Luxing Middle Road, Anzhou Street, Xianju County, Zhejiang Province

Email : xjylhmc@163.com / lindawu@chinayongling.com

Official website

Business license

SEND A MESSAGE

We will contact you within one working day. Please pay attention to your email.