Monro Pump Mechanical Pressure Switches Krs-3

• Customization: Available
• Type: Mechanical
• Number of Switch: Single Control Switch
• Model NO.: KRS-3
• Structure: Amplifier Built-in Type
• Usage: Control Switch
• Application: Home
• Explosion-proof Type: Flameproof
• Contact: Normally Open
• Brand: Monro
• Certification: ISO9001, CE, TUV
• Carton Size: 51*37*21cm
• Qty Per Carton: 50PCS
• G.W of Carton: 18.5kgs
• N.W of Carton: 16.5kgs
• Transport Package: Carton
• Specification: nylon
• Trademark: MONRO
• Origin: China
• HS Code: 9032810000
• Production Capacity: 200000/Month

Product Description

We strictly control the quality of products ensure the quality of each product,
ensure that customers can receive the best products.

Product Description

 

Highlight features:
1.Mechanical structure,realiable performance
2.No requirement for usage environment, long service life, easy for replacement.
3.To provide a complete water supply system, combined with pressure gauge, five-way, check valve and pressure tank.
4.The switch stars and stops the water pump automatically according to the setting pressure
(normally 20-40PSI;30-50PSI;40-60PSI etc).
5.Hydraulics connection can choose: fix nut female 1/4'' & 3/8'' ;male 1/4''. Rotary Nut 1/4'',3/8''; Male 1/4''

PRODUCT APPLICANT

 

Product Parameters

 

KRS-3 TECHNICAL PARAMETERS
Rated voltage	110-240V
Power Frequency	50/60HZ
Max using current	12A
Min. cut-in	20PSI
Max. cut-out	100PSI
Pressure Range	20-40PSI'30-50PSI; 40-60PSI etc
Cover color	black/ grey
Bases	Steel; Plastic
Contacts	Silver; Copper
Screw Size	Female fix nut:1/4''; 3/8'' Female Rotary: 1/4''; 3/8'' Male fix nut: 1/4''
Protection  Rating	IP20
Max working temperature	55ºC

Pressure tank's pressure & Pump max head & Pressure range of switch & Using height:

Rated Power (W)	Max. pump head (m)	Cut Off  (bar)	Cut In   (bar)	Water tank pressure (bar)	Max. tap height (m)
	H	P1	P2	P3	L
	H	P1	P2=P1-0.8	P3≈P2	L
150	19	1.8	1.0	1.0	<10
250	25	2.4	1.6	1.6	<16

1. Reg the precharge pressure of the pressure tank (P3), it's must smaller than the cut-off of pressure switch (P1);
and we suggest that the precharge pressure of the tank (P3) be close to the cut-in of switch(P2).
So the water can into the pressure tank and act as a buffer;

2.The cut-in of switch(P2) decide the max using height (L);

3.The cut-off of the switch (P1) must be smaller than the max pump head of the pump/10 (H/10) ;
And we suggest to smaller around 0.5bar than the H/10,to avoid the real head drops caused by seal parts damaged after the pump is used for a period of time.

Detailed Photos

It's not recommended to adjust the pressure setting by self.

Company Profile

ZHEJIANG MONRO MACHINERY&ELECTRONIC CO.,LTD is located in Wenling,Zhejiang province ,

which is a industrially development city with convenient transportation . 
With more than 20 years of production history for pressure controls and float switches. 
At present, our factory has more than30 various types of pressure control which used for water pump system and air compressor.

FAQ

Q: What's your MOQ?                       

A:  204PCS per model for normal package.

Q:Could do brand packing?             
A: EPC series, above 1200pcs;
    KRS series, above 3000pcs;
    FPS series, above 2000pcs.

Q:How about the delivery time?     
A: 3-5days for samples;
    EPC series 180,000pcs/month;
    KRS series 250,000pcs/month;
    FPS series 40,000pcs/month.

Q: How about warranty?                   
A: 1 YEAR

Q:Do you have any certificates?       
A:ISO9001;TUV(Germany); CE(Europe);UL