GW-P series vacuum fine adjustment valveDetailed product description：

The GW-P series vacuum fine adjustment valve is a vacuum valve used to regulate the flow rate of trace gases and liquids in a vacuum system with a pressure range of 1.3 × 10-5 to 3 × 105Pa.

Main performance
Leakage rate: 1.3 × 10-9Pa.M3/S;
Diameter: 1.0, 1.5, and 3.0 millimeters in three specifications;
Positive pressure resistance: 0.1MPa~0.6MPa; Temperature resistance, corrosion resistance, and pressure resistance; The adjustable quantity in the table can be expressed as Pa.L/S as long as it is multiplied by the pressure state at the time of measurement.

Principle
The principle of changing the length of the gap is adopted to achieve the purpose of adjusting the flow rate of gas and liquid through screw transmission.

characteristic
Adjustment function - good linear relationship,
The valve needle can be adjusted or closed;

Main component materials
Body, rod, valve seat, needle	three hundred and four
Shaft seal	'0' circle F26
filler	PTFE

Dimensions and Technical Performance of GW-P Vacuum Fine Adjustment Valve:

Code model	L	H(Open)	H(Close)	medium	Temperature °C	Minimum adjustable quantity Pa. L/S	Maximum adjustable quantity Pa. L/S	Leakage rate Pa, L./S	Pressure resistance
GW-1.0P	sixty	one hundred and fifteen	one hundred and seven	Air, steam, water, acid, alkali		zero point zero zero four seven	zero point zero one eight eight	1.3×10	0.1MPa ～ 1.0MPa
GW-2.0P	sixty	one hundred and fifteen	one hundred and seven			zero point zero three six nine	zero point one four seven seven
GW-3.0P	sixty	one hundred and fifteen	one hundred and seven			zero point seven nine five nine	three point one eight three nine