Home

Products

SQP41 Low-Noise Vane Pump

Key words:Hydraulic tools

Category:

SQP series low noise vane pumps

E-mail:

Tel:

Details

Specification

Series	Displacement code of the shaft-end pump	Displacement code of the cover-end pump
SQP41	42、 45、 50、 57、 60、 66、 75	2、 3、 4、 5、 6、 7、 8、 9、 10、 11、 12、 14

Model code

Installation and Use

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

2. Secure the pipeline according to the diameter, especially the inlet pipe, and install a safety relief valve in the system (the inlet flow rate is 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 50 mm, 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 esters 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 500 mm.

5. The oil should be kept clean, and the pipelines and oil tank must be thoroughly cleaned; a precision filter should be assembled in the system, with a recommended accuracy of 25 μm, and the oil cleanliness should be within NSA12. Install a filter with sufficient capacity (the rated flow rate should be more than twice the pump flow rate) 50 mm from the pump inlet, with a recommended accuracy of 100 μm (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 13 cSt Maximum 54 cSt

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 before the first use.

During initial operation or operation after a long rest, the pump may have difficulty sucking in liquid; in this case, an air release 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. During startup, 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. At startup, if the oil viscosity is higher than the suitable viscosity (54 cSt), the pressure should be limited to 50% or less of the respective rated value until the system heats up.

Installation Connection Dimensions

◎Key Shaft

Model	Shaft Cooling	A	B	C	D	E	F Key Width × Length
SQP41	1	62	12.7	14.2	31.75/31.70	35.25/35.10	7.94 × 28.5
SQP41	86	87.4	12.7	14.2	38.075/38.05	42.4/42.25	9.54 × 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	Root Minor Diameter	Fit 12/24
SQP41	11	61.9	12.7	14.3	9.7	39.6	14	31.7/31.67	26.99/26.64	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.