VH straight spindle valves, pneumatically operated

• Worldwide lowest leakage rate of 1x10-12 mbar*l/s
• Optimized without dead space
• Flexible use for liquids and gases
• Safety through protection against unscrewing
• Highly vacuum-tight, without open sealing rings, grease-free and free of dead space due to complex but inconspicuous sealing system under PTFE coating
• Sealing system adjustable
• Only available in thick-walled and extra thick-walled
• Standard is safety position (unpressurized), spring force closing, picture shows pressure operated opening and closing
• Spring loaded opening and pressure operated opening and closing on request
• Material handle not in contact with product
• Material handle: PP, 0/+100°C
• Material O-ring: FKM, -40/+180°C
• Material Metal parts: brass, -50/+200°C
• Temperature resistance: -100/+200°C, at T < -50°C readjustment may be necessary
• Pressure resistance: -1/+0,5 barg
• Material in contact with product: Borosilicate glass 3.3, PTFE

Important: For glass articles which differ from the original shape after further processing, the permissible data must be determined in accordance with the technical rules and regulations.