High Vacuum Block Valve - Angle Valve Series

Jul. 22, 2020

High Vacuum Block Valve - Angle Valve Series

This series of valves is divided into manual, pneumatic and electromagnetic driven types. Features with smooth operation, small size, reliable use, good sealing performance and long service life. It is one of the preferred valves for vacuum equipment. The valve respectively rotates the handle, the compressed gas pushes the cylinder and the coil energizes to generate electromagnetic force, and the power is connected to the valve plate through the mechanism, and drives the valve plate to open and close. Applicable medium can be pure air and non-corrosive gas.

Technical Parameters

Application scope

1x10^(-5)Pa~1.2x10^(5)Pa(Viton o-ring sealed)

1x10^(-6)Pa~1.2x10^(5)Pa(Bellow seal)

Differential pressure on the gate

DN 200~250(Pneumatic Type):≤3x10^(4)pa

The other types:≤1.0x10^(5)Pa Any direction

Body and seat leak

rate

1.3x10^(-7)Pa.L.S^(-1)

Cycles until first

service

200,000 times

Bake-out temperature

≤150℃

Installation position

Manual drive: any direction

Pneumatic drive: any direction (DN ≤ 160); Sealed surface direct to the vacuum

Electromagnetic drive:any direction (bellow sealing); Sealed surface direct to the

vacuum(Viton O-ring sealed)

Compressed air (only supply to pneumatic valves)

0.4-0.7MPa

Power Supply

Pneumatic valves: AC 220V 50HZ, 6W or DC 24V, 3W( can be customized)

Electromagnetic drive: AC 220V 50HZ

Speed of opening or

closing:

Pneumatic drive:DN16~DN50≤1s;DN63~DN250≤3s

Electromagnetic drive: open≤0.1s;close≤1s(viton sealing) close≤0.5s(bellow sealing)

Valve position indication:

Manual drive: with open&close position indication

Pneumatic drive: with open&close position indicator switch(magnetic switch)

Electric drive: with turn-on indicator

Optional Accessories

Pneumatic DN 16~50: open and close position indicating switch (magnetic switch), Model D-A73; Pneumatic DN 63~250:ISO flange; two-position five-way electromagnetic reversing valve, Model 4V210-06.

Precautions in use:

1. The valve should first check whether the valve is intact and the accessories are complete.

2. The valve should be kept clean and stored in a dry room and protected from strong vibrations.

3. When the valve is not used for long-term storage, the valve should be in the micro-open state, and should be checked regularly to prevent moisture, rust and rubber parts aging.

4. Before installation, the surface of the valve and vacuum should be cleaned according to vacuum hygiene requirements.

5. The user's flange connected to the valve must have no protruding welds in the joint hole.

6. The air supply pressure to the pneumatic valve should be guaranteed in the range of 0.4 to 0.7 MPa.

7. The signal switch of the pneumatic valve is a passive switch signal, and the maximum load of the switch is 0.1A 250VAC.

8. The newly used pneumatic valve may encounter a higher pressure of the air source required for shutting down. This is a normal phenomenon, and the pressure of the air source required to close after the number of times of operation is decreased.

9. The interval between two operations of the electromagnetic valve should not be less than 1 s, and the power supply should be reliable, and there should be no instantaneous on-off phenomenon, otherwise the valve could not be opened.

10. In the solenoid valve power supply circuit, the fuse is connected in series. For short-circuit protection, the recommended fuse current is 1A (DN16), 2A (25), 3A (DN 40 and 50).

The possibility of fault and eliminating methods

Fault	Reason	Eliminating methods
Weak sealed	Seal face with oil	Clean the oil spot
	Seal face has been nicked	polish the nick with polishing paper or the machine
	Rubber sealing ring has been damaged	Change rubber sealing ring
	Bellow has been damaged	Change or weld the bellow
Can not open/close （pneumatic）	Insufficient supply pressure	Raise the supply pressure to standard level
	Throttle valve with a wrong position	Reset to initial state
	Air pressure unbalanced	Adjust to be balanced
Reversing valve fault (Pneumatic)	Insufficient supply pressure	Raise the supply pressure
	Reversing valve without power	Power on
	Reversing valve has been damaged	Change the reversing valve
Can not open/close （electromagnetic）	Out of the range of power supply	Adjust to the certain range
	poor contact for loose or break connection	Change the broken wire or connect again
	Short-circuit damage of circuit board	Return to the factory for renewal

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