- For sub-plate mounting,

   porting pattern to DIN 24 340 Form A,

   ISO 5781 and CETOP-RP 121 H,

- For threaded connection

- With or without drain port

- With or without unloading function

- 4 cracking pressures
 

SV and SL valves are hydraulic pilot operated check valves in poppet type design which may be 

opened to permit reverse flow.

These valves are used for the isolation of operating circuits under pressure, to prevent a load from falling or  creeping movements of hydraulically locked-in actuators.

Basically these valves consist of housing (1), poppet (2),compression spring (3), control spool (4) as well as a optional pre-opening ball poppet valve (5).

Type SV (without drain port)The valve enables free flow from A to B, in the 

counter direction the poppet (2) is held on its seat by the system pressure, additionally to the spring 

force. Through the pressure connection at control port X the control piston (4) is moved to the right. 

This pushes the poppet (2) from the seat, then fluid flows from B to A.

Function and configuration

In order to ensure the proper opening of the valve via the control piston (4) a certain minimum control pressure is necessary.

Type SV...A...and SL...A... (with pre-opening)   

This valve has a additional pre-opening see hereinafter left configuration. Through pressure 

connection at control port X the control piston (4) is pushed to the right. The ball poppet(5.1) leaves 

first  then the poppet (2) leaves from the seat. 

Now the valve may also have a flow from B to A.
Because of the pre-opening there is a dampened decompression of the fluid under pressure to 

avoid possible pressure shocks.

Type SL... (with drain port )

The function of this valve is principally the same as the valve SV  hereinafter right configuration.

The difference is the additional leakage port Y. 

The annulus area of the control piston (4) is separated from port A. The pressure at port A only 

effects area A4 (9) of the control piston (4).

- For sub-plate mounting,

   porting pattern to DIN 24 340 Form A,

   ISO 5781 and CETOP-RP 121 H,

- For threaded connection

- With or without drain port

- With or without unloading function

- 4 cracking pressures
 

SV and SL valves are hydraulic pilot operated check valves in poppet type design which may be 

opened to permit reverse flow.

These valves are used for the isolation of operating circuits under pressure, to prevent a load from falling or  creeping movements of hydraulically locked-in actuators.

Basically these valves consist of housing (1), poppet (2),compression spring (3), control spool (4) as well as a optional pre-opening ball poppet valve (5).

Type SV (without drain port)The valve enables free flow from A to B, in the 

counter direction the poppet (2) is held on its seat by the system pressure, additionally to the spring 

force. Through the pressure connection at control port X the control piston (4) is moved to the right. 

This pushes the poppet (2) from the seat, then fluid flows from B to A.

Function and configuration

In order to ensure the proper opening of the valve via the control piston (4) a certain minimum control pressure is necessary.

Type SV...A...and SL...A... (with pre-opening)   

This valve has a additional pre-opening see hereinafter left configuration. Through pressure 

connection at control port X the control piston (4) is pushed to the right. The ball poppet(5.1) leaves 

first  then the poppet (2) leaves from the seat. 

Now the valve may also have a flow from B to A.
Because of the pre-opening there is a dampened decompression of the fluid under pressure to 

avoid possible pressure shocks.

Type SL... (with drain port )

The function of this valve is principally the same as the valve SV  hereinafter right configuration.

The difference is the additional leakage port Y. 

The annulus area of the control piston (4) is separated from port A. The pressure at port A only 

effects area A4 (9) of the control piston (4).

Xiaomi Smart Lock

• The Xiaomi smart door lock is a C-level lock cylinder, which is the conclusion of the commissioned inspection conducted by the Safety and Police Electronic Product Quality Inspection Center of the Ministry of Public Security in accordance with the requirements of the GA/T 73-2015 "Mechanical Anti-theft Lock" standard (Report No.: Gongjing) Inspection No. 2010376, Public Beijing Inspection No. 2010399);

• 6 unlocking methods include fingerprint unlocking, ordinary password unlocking, temporary password unlocking, Xiaomi mobile phone NFC unlocking, mobile phone Bluetooth unlocking, and key unlocking;

• Currently, devices that support NFC unlocking function include: Mi Band 4 NFC version; Mi mobile phones include: Mi 10 series, Mi CC9 Pro, Mi CC9 (including Meitu customized version), Mi 9 Pro 5G, Mi 9 (including Mi 9) SE and Mi 9 Transparent Premium Edition), Mi MIX series, Mi 8 (including transparent exploration version and screen fingerprint version), Mi Note 3/2, Mi 6/5/5s/5s Plus; Redmi includes: Redmi K30 , Redmi K30 5G, Redmi Note 8 Pro, Redmi K20, Redmi K20 Pro (including Premium Edition). MIUI development version users and stable version users can activate the Xiaomi smart door lock card by upgrading the system to the latest version;

• 7 major safety detections include oblique tongue status detection, square tongue status detection, corner tongue status detection, anti-lock tongue status detection, key insertion detection, panel tamper-proof detection, and indoor handle pressing to open the door;

• In the small black box test, the door lock is placed in an anechoic chamber. Under the condition that the field strength is 10V/m, the modulation frequency is 1kHz, and the modulation degree is 80%, the frequency sweep interference test is performed from 80MHz to 1GHz, and the door lock is normal in the test. Work without error (Report No.: Public Beijing Inspection No. 2010376, Public Beijing Inspection No. 2010377);

• This product has been connected to Mijia, use Mijia APP to set door lock, and cooperate with rich Mijia smart devices, it can realize intelligent linkage control, linkage alarm and other rich smart home applications. (Remote abnormal alarm, remote viewing of unlocking records, intelligent linkage and other related functions need to be used with devices with Bluetooth gateway function);

• Automatically turn on the light when opening the door, and the Xiaomi smart door lock is linked with other smart products. It needs to be used with a device with a Bluetooth gateway, and the scene needs to be set in the Mijia APP. Devices with Bluetooth gateway function include: Mijia Bedside Lamp, Xiaomi Xiaoai Smart Alarm Clock, Zhimi Pure Humidifier, Yeelight Bright Moon LED Ceiling Lamp, Yeelight Ceiling Lamp Bright Moon Series, Philips Zhirui Bedside Lamp, Yeelight Voice Assistant, Mijia Smart Camera 1080P, Philips Zhirui Ceiling Light, Yeelight Ceiling Light, WalkingPad Walking Machine, Yeelight Ceiling Light Youth Edition, Mijia LED Ceiling Light, Momoda Smart Leisure Massage Chair, Xiaomi Mijia Xiaobai Smart Camera Enhanced version, etc., and will continue to increase;

Xiaomi Smart Lock,Xiaomi Video Doorbell,Mijia Smart Door Lock,Xiaomi Door Lock,Xiaomi Fingerprint Lock,Xiaomi Password Lock

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