ZCLZ Pneumatic Knife Gate ValveDetailed product description：

ZCLZ Pneumatic Knife Gate Valve

Product Features
The principle of combining excellent performance of Chinese and Western gate valves is widely used
The cylinder mechanism performs reliable U-shaped sealing to avoid leakage

Overview
Pneumatic knife type gate valves can complete the action control and signal output of opening and closing positions by using accessories such as solenoid valves and proximity switches, as well as automatic control of continuous actions. Users can choose according to their actual needs.
The variety of pneumatic knife type gate valves is complete. The main body is made of cast iron, cast steel, stainless steel, etc. The diameter ranges from DN50 to DN1000. The product is widely used in chemical, coal, sugar, sewage, papermaking and other fields, and is an ideal sealing valve. Especially suitable for the paper industry to regulate and throttle pipelines.

Main Structure and Characteristics
This valve is mainly composed of left and right valve bodies, U-shaped sealing rings, gate plates, steel nuts, valve stems, brackets, cylinders, and other components. The opening and closing of the valve is completed by the action of the cylinder.
1. Adopting a clip on structure, it has a small volume and light weight;
2. A completely open channel can prevent the medium from depositing inside the valve.
3. The newly developed U-shaped sealing ring can ensure good sealing performance of the valve;
4. Small flow resistance, easy installation and maintenance.
5. The external sealing of the gate is achieved by a sealing strip with elasticity embedded in the valve body, which can be adjusted with the help of screws and pressure plates.

Main component materials

Serial number	Part Name	Material	Serial number	Part Name	Material	Remark
one	valve body	HT250	five	support		Note 1: The grade of rubber depends on the medium and temperature. 2: The material of the gate depends on the composition of the medium.
two	Seal ring	Rubber (Note 1)	six	valve stem
three	ram	Stainless steel (Note 2)	seven	nut	ZHMn58－2－2
four	Sealing strip	Polytetrafluoroethylene	eight	handwheel	QT40－17

Valve selection and drive device model configuration table
1. A cylinder is a device that uses compressed air as a medium to convert its energy into mechanical energy and achieve linear motion. It is widely used as an actuator in various pneumatic systems and is a fundamental component for achieving industrial automation.

Valve diameter DN	Cylinder specifications (cylinder diameter x stroke)	Valve diameter DN	Cylinder specifications (cylinder diameter stroke)
fifty	Φ65×50	two hundred	Φ160×200
sixty-five	Φ65×65	two hundred and fifty	Φ200×250
eighty	Φ80×80	three hundred	Φ200×250
one hundred	Φ100×100	three hundred and fifty	Φ220×350
one hundred and twenty-five	Φ125×125	four hundred	Φ250×400
one hundred and fifty	Φ125×150

2. Technical parameters

Cylinder inner diameter (mm)		Φ40	Φ50	Φ63	Φ80	Φ100	Φ125	Φ160	Φ200	Φ250
Theoretical piston force (N) (Based on a working pressure of 0.4MPa)	thrust	four hundred and ninety	seven hundred and sixty	one thousand two hundred and fifteen	one thousand nine hundred and sixty	three thousand and seventy-seven	four thousand and eight hundred	seven thousand eight hundred and sixty-nine	twelve thousand three hundred and eight	nineteen thousand two hundred and twenty-seven
	pull	four hundred and ten	six hundred and eighty	one thousand and thirty	one thousand seven hundred and seventy	two thousand six hundred and seventy-five	four thousand and four hundred	seven thousand three hundred and seventy-nine	ten thousand and thirty-five	eighteen thousand four hundred and sixty-three
working medium		Purified oil mist compressed air
Work pressure (MPa)		0.15－1
Environmental temperature (℃)		-10－+80
relative humidity		ninety-five
Piston movement speed (mm/g)		50-500
Durability (KM)		six hundred

3. Selection range of cylinder stroke

Cylinder bore	Φ40	Φ50	Φ63	Φ80	Φ100	Φ125	Φ160	Φ200	Φ250
Scope of itinerary selection	four hundred	five hundred	eight hundred	eight hundred	one thousand and five hundred	one thousand and five hundred	two thousand	two thousand	two thousand and five hundred

4. Precautions for proper use of cylinders:
(1) The direction of load movement must be consistent with the direction of piston rod movement to avoid twisting of the piston rod.
(2) Use a combination of filters, pressure reducers, and lubricators (F-R-E combination) to adjust air quality and increase service life.
(3) Choose cylinders with output greater than the actual load to avoid danger in case of insufficient air pressure.
(4) Pay attention to the ambient temperature, and the use temperature of piston rings and sealing materials in the cylinder is generally limited to -5 ℃ -+60 ℃.
(5) There is a corrosive gas environment, and PTFE is used as the material for the piston and sealing parts inside the cylinder.
Air consumption required per 1mm travel unit: 1/min

Pneumatic knife type gate valve appearance and connection dimensions

bore	Air pressure kg/cm2
	one	two	three	four	five	six	seven	eight	nine
twelve	zero point four four five	zero point six six five	zero point eight eight five	one point one zero four	one point three two four	one point five four three	one point seven six three	－	－
sixteen	zero point seven nine two	one point one eight two	one point five seven three	one point nine six three	two point three five two	two point seven four three	three point one three three	－	－
twenty	one point two four	one point eight six	two point four five	three point zero seven	three point six eight	four point two nine	four point nine zero	five point five one	six point one three
twenty-five	one point nine four	two point eight nine	three point eight three	four point seven nine	five point seven five	six point seven one	seven point six seven	eight point six one	nine point five seven
thirty	two point seven eight	four point one five	five point five three	six point nine zero	eight point two seven	nine point six four	eleven point zero two	twelve point three nine	thirteen point seven six
thirty-two	three point one eight	four point seven three	six point two eight	seven point eight five	nine point four one	ten point nine eight	twelve point five five	fourteen point one zero	fifteen point six six
forty	four point nine five	seven point four zero	nine point eight three	twelve point two six	fourteen point six nine	seventeen point one six	nineteen point six zero	twenty-two point zero four	twenty-four point four seven
fifty	seven point seven three	eleven point five five	fifteen point three five	nineteen point one five	twenty-two point nine five	twenty-six point eight zero	thirty point six three	thirty-four point four two	thirty-eight point two four
sixty-three	twelve point two seven	eighteen point three four	twenty-four point three seven	thirty point four one	sixty-three point four four	forty-two point five five	forty-eight point six two	fifty-four point five five	sixty point seven one
eighty	nineteen point seven eight	twenty-nine point five seven	twenty-nine point three zero	forty-nine point zero three	fifty-eight point seven six	sixty-eight point six one	seventy-eight point four zero	eighty-eight point one three	ninety-seven point eight five
one hundred	thirty point nine	forty-six point two	sixty-one point four	seventy-six point six	ninety-one point eight	one hundred and seven point two	one hundred and twenty-two point five	one hundred and thirty-seven point seven	one hundred and fifty-two point nine
one hundred and twenty-five	forty-eight point three	seventy-two point two	ninety-six	one hundred and nineteen point seven	one hundred and forty-three point five	one hundred and sixty-seven point five	one hundred and ninety-one point four	two hundred and fifteen point two	two hundred and thirty-eight point nine
one hundred and fifty	sixty-nine point five	one hundred and three point nine	one hundred and thirty-eight point two	one hundred and seventy-two point five	two hundred and six point nine	two hundred and forty-one point two	two hundred and seventy-five point five	three hundred and nine point eight	three hundred and forty-four point one
one hundred and sixty	seventy-nine point one	one hundred and eighteen point three	one hundred and fifty-seven point two	one hundred and ninety-six point one	two hundred and thirty-five	two hundred and seventy-four point four	three hundred and thirteen point six	three hundred and fifty-two point six	three hundred and ninety-one point five
one hundred and eighty	one hundred	one hundred and forty-nine point seven	one hundred and ninety-nine	two hundred and forty-eight point two	two hundred and ninety-seven point five	three hundred and forty-seven point four	three hundred and sixty-nine point nine	four hundred and forty-six point two	four hundred and ninety-five point four
two hundred	one hundred and twenty-three point six	one hundred and eighty-four point eight	two hundred and forty-five point six	three hundred and six point four	three hundred and sixty-seven point two	four hundred and twenty-eight point eight	four hundred and ninety	five hundred and fifty point eight	six hundred and eleven point six

Pneumatic Knife Gate Valve Pneumatic and Electrical Control Function Description
1. The pneumatic knife type gate valve cylinder is controlled by an electromagnetic valve, which can control the gate valve to stay at the upper limit, lower limit, and any position.
2. When the gate valve stays at the upper and lower limit positions, it emits a set of independent signal contacts that are normally open or normally closed. Can be used as a status indicator.
3. When the gate valve stays at the upper and lower limit positions, the limit switch automatically cuts off the power supply to the corresponding control coil of the solenoid valve. When the gate valve stays in the upper and lower limit positions for a long time, the coil of the solenoid valve is not powered, which can avoid coil heating and improve the service life of the solenoid valve, greatly improving reliability.
4. When the gate valve stays in the upper and lower limit positions for a long time; The gas source is cut off, but the pressure of the valve cylinder remains in the cylinder and can be reliably stopped.
5. During the cylinder switching process, if the control power is cut off, the inlet and outlet air of the cylinder are also cut off, and the air pressure of the locked valve cylinder remains in the cylinder. If there is no leakage in the cylinder piston, solenoid valve, and joint, the gate valve can stay in any position for a long time.

Ordering Instructions
1. Product model and name 2, nominal diameter 3, valve body material 4, nominal pressure
5. Control requirement 6, solenoid valve voltage 7, other special requirements