Directional control valves (DCVs) are one of the most fundamental parts of hydraulic and pneumatic systems. DCVs allow fluid flow (hydraulic oil, water or air) into different paths from one or more sources. DCVs will usually consist of a spool inside a cylinder which is mechanically or electrically actuated. The position of the spool restricts or permits flow, thus it controls the fluid flow.
The spool (sliding type) consists of lands and grooves. The lands block oil flow through the valve body. The grooves allow oil or gas to flow around the spool and through the valve body. There are two fundamental positions of directional control valve namely normal position where valve returns on removal of actuating force and other is working position which is position of a valve when actuating force is applied. There is another class of valves with 3 or more positions that can be spring centered with 2 working position and a normal position.
GRH appreciates your enquiry upon your hydraulic system. Section Valve,Hydraulic Sectional Valves,Pressure Control Sectional Valve,Sectional Valves GRH , https://www.grhcn.net
160 Handheld Metal Detector
160 handheld metal detector is designed for the detection of magnetic and non-magnetic metal objects designed for high-sensitivity handheld device. It can be used to inspect weapons, explosives, or other small metal objects that are carried or hidden in a package. The special shape of the sensing area makes the operation more simple and convenient.
160 handheld metal detector with ultra-high sensitivity, can be used to detect extremely small non-magnetic metal objects.
160 handheld metal detector with sound, light and vibration alarm in three forms, can adapt to a variety of environmental inspection requirements, long battery life can meet the continuing needs.
160 handheld metal detectors are manufactured using electronic technology and comply with all international security standards.
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Features
High detection sensitivityÂ
Can detect magnetic and non-magnetic metal
stable performance, no need periodic calibration
apply of light, sound and vibration alarm
Long standby time
Specifications
Sensitivity: low sensitivity, normal sensitivity, high sensitivity and ultra-high sensitivity
Alarm mode: visual and audible alarm indication, visual and vibration alarm indication
Power: 9V dry cell, 9V Ni-MH battery, dedicated 7.4V Lithium-ion battery
Continuous use time: ALKALINE Battery: 100 hours
Lithium-ion Battery: 300 hours
Operating temperature: -15 ºC ~ + 60 ºC (humidity: 0 ~ 95%)
Specifications Size: 340mm (length) × 80mm (width) × 60mm (height)
Weight: 0.5 kg
Material: shock-resistant, impact-resistant ABS plastic
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160 Handheld Metal Detector
160 handheld metal detector is designed for the detection of magnetic and non-magnetic metal objects designed for high-sensitivity handheld device. It can be used to inspect weapons, explosives, or other small metal objects that are carried or hidden in a package. The special shape of the sensing area makes the operation more simple and convenient.
160 handheld metal detector with ultra-high sensitivity, can be used to detect extremely small non-magnetic metal objects.
160 handheld metal detector with sound, light and vibration alarm in three forms, can adapt to a variety of environmental inspection requirements, long battery life can meet the continuing needs.
160 handheld metal detectors are manufactured using electronic technology and comply with all international security standards.
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Features
High detection sensitivityÂ
Can detect magnetic and non-magnetic metal
stable performance, no need periodic calibration
apply of light, sound and vibration alarm
Long standby time
Specifications
Sensitivity: low sensitivity, normal sensitivity, high sensitivity and ultra-high sensitivity
Alarm mode: visual and audible alarm indication, visual and vibration alarm indication
Power: 9V dry cell, 9V Ni-MH battery, dedicated 7.4V Lithium-ion battery
Continuous use time: ALKALINE Battery: 100 hours
Lithium-ion Battery: 300 hours
Operating temperature: -15 ºC ~ + 60 ºC (humidity: 0 ~ 95%)
Specifications Size: 340mm (length) × 80mm (width) × 60mm (height)
Weight: 0.5 kg
Material: shock-resistant, impact-resistant ABS plastic
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Handheld Metal Detector 160 for Personal and Industrial Usage
Model NO.: 160
Size: 340mm(L ) &; 80mm (W); 60mm (H)
Trademark: TOPSKY
Origin: Beijing
Model NO.: 160
Size: 340mm(L ) &; 80mm (W); 60mm (H)
Trademark: TOPSKY
Origin: Beijing