The Pfeiffer high vacuum gate valve has a stainless steel valve body with elastomer seals. The ultra-slim profile allows operation in any orientation. Pfeiffer HV Gate Valves have high conductance due to free clearance.
A wide selection of o-ring materials are available in other part number configurations upon request.
Pfeiffer HV Gate Valve, 250 ISO-F, Manual, Stainless Steel, FKM, PN40643
Technical Data |
HV gate valve, DN 250 ISO-F, manual, SS/FKM |
Actuator | Manual |
Bakeout temperature: actuator | 60 °C | 140 °F | 333 K |
Bakeout temperature: housing | 150 °C | 302 °F | 423 K |
Conductance value with molecular flow | 24990 l/s |
Differential pressure in closing direction | 1,000 hPa | 750 Torr | 1,000 mbar |
Differential pressure in opening direction | 1,000 hPa | 750 Torr | 1,000 mbar |
Housing | Stainless steel |
Nominal diameter | DN 250 ISO-F |
Number of screws | 12 Pcs. |
Opens against differential pressure of | 30 hPa | 22.5 Torr | 30 mbar |
Pressure max. (absolute) | 1,000 hPa | 750 Torr | 1,000 mbar |
Pressure min. | 1 · 10-9 hPa | 7.5 · 10-10 Torr | 1 · 10-9 mbar |
Seal: Housing | FKM |
Seal: Valve seat | FKM |
Service life | 100000 cycles |
Thread | M10 |
Thread depth | 15 mm | 0.59 inch |
Tightness | 1 · 10-9 mbar l/s |
Type | HV gate valve |
Valve plate | Stainless steel |
Weight | 50 kg | 110.23 lb |
A & J Vacuum Services provides repair service for all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair, Mass Spectrometer repair, Rotary Vane Pump repair, Vacuum Booster repair, and Leak detector repair. Our highly trained technicians have years of experience and guarantee the highest quality service.
We operate at our own full service repair facility in Clifton, NJ. We have invested in state-of-the-art equipment including; complete line of decontamination, cleaning, drying, balancing, vibration analysis and software to minimize failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.
We support all major manufacturers including Pfeiffer Vacuum, Alcatel / Adixen, Edwards Vacuum, Varian, Oerlikon / Leybod Vacuum, Vacuubrand, and Agilent Technologies.
Repair Steps
Every pump and instrument is extensively tested for 48 hours. During our final tests, we monitor total pressure, temperature, vibration and noise level utilizing newest testing technologies and techniques specified by OEM. Upon request, we can provide our customers with a pump down graph. Call us for your free repair estimate at 1-973-249-0854.
The Pfeiffer high vacuum gate valve has a stainless steel valve body with elastomer seals. The ultra-slim profile allows operation in any orientation. Pfeiffer HV Gate Valves have high conductance due to free clearance.
A wide selection of o-ring materials are available in other part number configurations upon request.
Pfeiffer HV Gate Valve, 250 ISO-F, Manual, Stainless Steel, FKM, PN40643
Technical Data |
HV gate valve, DN 250 ISO-F, manual, SS/FKM |
Actuator | Manual |
Bakeout temperature: actuator | 60 °C | 140 °F | 333 K |
Bakeout temperature: housing | 150 °C | 302 °F | 423 K |
Conductance value with molecular flow | 24990 l/s |
Differential pressure in closing direction | 1,000 hPa | 750 Torr | 1,000 mbar |
Differential pressure in opening direction | 1,000 hPa | 750 Torr | 1,000 mbar |
Housing | Stainless steel |
Nominal diameter | DN 250 ISO-F |
Number of screws | 12 Pcs. |
Opens against differential pressure of | 30 hPa | 22.5 Torr | 30 mbar |
Pressure max. (absolute) | 1,000 hPa | 750 Torr | 1,000 mbar |
Pressure min. | 1 · 10-9 hPa | 7.5 · 10-10 Torr | 1 · 10-9 mbar |
Seal: Housing | FKM |
Seal: Valve seat | FKM |
Service life | 100000 cycles |
Thread | M10 |
Thread depth | 15 mm | 0.59 inch |
Tightness | 1 · 10-9 mbar l/s |
Type | HV gate valve |
Valve plate | Stainless steel |
Weight | 50 kg | 110.23 lb |
A & J Vacuum Services provides repair service for all types of High Vacuum equipment. We perform Turbomolecular Pump repair, Turbo Pump Repair, Dry Pump repair, Vacuum Pump repair, Mass Spectrometer repair, Rotary Vane Pump repair, Vacuum Booster repair, and Leak detector repair. Our highly trained technicians have years of experience and guarantee the highest quality service.
We operate at our own full service repair facility in Clifton, NJ. We have invested in state-of-the-art equipment including; complete line of decontamination, cleaning, drying, balancing, vibration analysis and software to minimize failures. Our in-house machine shop is capable of machining various components, prototypes and housing conversions as needed.
We support all major manufacturers including Pfeiffer Vacuum, Alcatel / Adixen, Edwards Vacuum, Varian, Oerlikon / Leybod Vacuum, Vacuubrand, and Agilent Technologies.
Repair Steps
Every pump and instrument is extensively tested for 48 hours. During our final tests, we monitor total pressure, temperature, vibration and noise level utilizing newest testing technologies and techniques specified by OEM. Upon request, we can provide our customers with a pump down graph. Call us for your free repair estimate at 1-973-249-0854.