Home

Products

SQP4 Low Noise Vane Pump

Key words:Hydraulic tools

Category:

SQP 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		Minimum speed r/min	Weight Kilograms
			Max. Pressure MPa	Max. Speed r/min	Maximum pressure MPa	Max. Speed r/min	Max. Pressure MPa	Max. Speed r/min
SQP4	42	138	17.5	1800	16	1500	7	1200	600	59.5
	45	147
	50	162
	57	183
	60	193
	66	212	16		14
	75	237	14

Note: ①When the working fluid is phosphate ester liquid, use special seal (FPM). When ordering, add prefix [F-] before the specified model.

②Allow transient (peak) pressure to exceed the maximum pressure rating by 10%, lasting 0.5 seconds.

Model code

Installation and use

1. During installation, the concentricity tolerance of the pump and motor must be less than 0.10 mm (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. Fixed pipelines, especially the inlet pipeline, must be sized according to the port size, and a safety pressure relief valve must be assembled in the system (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 pipeline 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 surface, with a minimum depth of 50 mm, even at low positions, to avoid the formation of bubbles.

3. Set the suction pressure at the pump inlet: Hydraulic oil for 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 mounted on the oil tank or above the oil tank cover, the suction port 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 cleanliness of the oil should be within NSA12. A filter with sufficient capacity should be fixed 50 mm above the bottom of the oil tank at the pump inlet (the rated flow rate should be more than twice the pump flow rate), 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 add oil to the pump for the first use.

In the initial operation or operation after a long rest, the pump may have difficulty in sucking 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, operate the pump intermittently without load as much as possible.

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

9. At startup, if the viscosity of the oil 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 warms up.

Installation connection dimensions

◎ Key shaft

Model	Shaft cooling	A	B	C	D	E	F key Width × Length
SQP4	1	62	12.7	14.2	31.75/31.70	35.25/35.10	7.94 × 28.5
SQP4	86	87.4	12.7	14.2	38.075/38.05	42.4/42.25	9.54 × 50.8

◎ Serration shaft

Model	Shaft cooling	A	B	C	D	E	Serration data
							Quantity Number of teeth	Pitch	Large diameter Small diameter	Square root Small diameter	Matching 12/24
SQP4	11	61.9	12.7	14.3	9.7	39.6	14	31.7/31.67	26.99/26.64	Large 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.