Specifications
| Connection Inlet Flange | DN 250 ISO-K |
| Connection vacuum outlet flange | DN 40 ISO-KF (NW40) |
| Cooling Method | Water Cooling |
| Pressure Ultimate | 3.000 × 10⁻⁶ |
| Power Supply Voltage | 1Ph 110-125V 50/60Hz |
| Power Total Rated | 2250.00 |
Diffstak 250/2000 Diffusion Pump - 1Ph 110-125V 50/60Hz, M - Manual Valve
Variant
Explore the range of variants given below to compare the product
| Short Description | Part Number | Variant Isolation Valve |
|---|---|---|
| B35031976 | M - Manual Valve | |
| B35031977 | M - Manual Valve | |
| B35031978 | M - Manual Valve | |
| B35032976 | P - Pneumatic Valve | |
| B35032977 | P - Pneumatic Valve | |
| B35032978 | P - Pneumatic Valve | |
| B35033976 | C - Unvalved | |
| B35033977 | C - Unvalved | |
| B35033978 | C - Unvalved |
Diffusion Pumps
Vacuum diffusion pumps are essential for creating high-vacuum environments in various industrial and research applications. They operate by heating a special lubricant (often silicone oils) to produce a high-speed jet of vapour, which directs gas molecules towards the pump’s exhaust. This process allows the pump to achieve very low pressures. They require a mechanical fore vacuum pump to operate.
Diffstak Vapour Pumps
The Mk2 Diffstak series offers compact and efficient diffusion pumps, designed to deliver exceptionally clean pumping without the need for extra traps, baffles, or liquid nitrogen cooling.
Choose from four different sizes, 63-100-160-250mm based on your requirements and for applications prioritizing high ultimate vacuum, all four pump sizes are available with unvalved collars. These collars eliminate the need for backing/roughing connections.
For critical applications demanding the utmost vacuum performance, consider the unvalved versions. These models feature 6- or 8-inch diameter flanges, sealed with copper compression gaskets (ConFlat). Achieve an ultimate vacuum of less than 2 x 10-10 mbar (2x10-8 Pa) using a low-temperature trap. Choose the Diffstak that best suits your vacuum system needs and enjoy reliable, efficient performance.
Diffstak 250/2000M - 110-125V 1-ph 50/60 Hz
250/2000
Features and Benefits
- Diffusion Pump: The heart of the system, responsible for efficient pumping.
- Water-Cooled Baffle: Ensures optimal cooling during operation.
- High-Vacuum Isolation Valve: Part of the inlet-flange, configurable for manual or pneumatic operation.
- Roughing Connection: Facilitates the initial pumping process.
General Product Information
| Connection Inlet Flange | DN 250 ISO-K |
| Weight | 59.00 |
| Connection vacuum outlet flange | DN 40 ISO-KF (NW40) |
| Leak Rate | 1.000 × 10⁻¹⁰ |
| Power Supply Phase | 1-Ph |
| Power Supply Voltage | 1Ph 110-125V 50/60Hz |
| Dimension Length | 0.633 |
| IP Rating | IP22 |
| Power Supply Frequency |
50 Hz
60 Hz |
| Dimension Height | 0.769 |
| Dimension Width | 0.625 |
| Cooling Method | Water Cooling |
| Connection Cooling | 10 mm compression coupling |
| Connection Inlet / Outlet Flange | DN 250 ISO-K / DN 40 ISO-KF (NW40) |
| Dimension Comments | The dimensions length, width and height try to describe the outer shape of this particular product in its typical orientation when standing on the ground. We always recommend checking the detailed dimensions given in 2D drawings in the instruction manual or the 3D shapes given in 3D models. |
Classification
| Classification Product Pressure Range | High Vacuum: 1·10⁻³ - 1·10⁻⁷ mbar |
| Classification High / Medium / Rough Vacuum pump | High Vacuum Pump |
| Classification Dry or Wet Pump | Wet |
| Classification Vacuum Pump Technology | Diffusion Pump |
Performance Data
| Power Total Rated | 2250.00 |
| Power Total Rated @60Hz | 2250.00 |
| Power Total Rated @50Hz | 2250.00 |
| Pressure Ultimate | 3.000 × 10⁻⁶ |
| Power at Atmosphere Continous | 2250.00 |
| Power at Ultimate | 2250.00 |
| Pumping Speed Air Nitrogen (@50Hz or max @default setting) | 2.00 |
| Warm Up Time | 2400.00 |
| Pressure Backing Max | 60.00 |
| Pumping Speed Air Nitrogen < 10-4 mbar | 2.00 |
| Power Consumption Max | 2250.00 |
Material of Construction
| Material of Construction | Mild Steel Ni plated, Aluminium, Stainless steel, Mild steel, Fluoroelastomer |
| Material Exposed to Vacuum | Mild Steel Ni plated, Aluminium, Mild steel, Fluoroelastomer |
| Material Rotor | Mild Steel Ni plated |
| Material Stator | Mild Steel Ni plated |
Lubricants
| Default Oil Type | Santovac® 5 |
Operation Conditions - Limitations
| Pressure Absolute Inlet Continous Max | 1.300 × 10⁵ |
| Oil Capacity Min | 5.000 × 10⁻⁷ |
| Oil Capacity Max | 5.000 × 10⁻⁷ |
| Flow Cooling Water Min | 5.000 × 10⁻⁵ |
| Pressure Absolute Outlet Continous Max | 60.00 |
Variants
| Variant Isolation Valve | M - Manual Valve |
Environmental Conditions
| Temperature Ambient Storage Min | 293.15 |
| Temperature Ambient Storage Max | 303.15 |
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| Product Title | Part Number | Price | Add to cart |
|---|---|---|---|
| Santovac 5 - Vacuum Pump Oil, 1 x 0.1 l, H11401001 | H11401001 | GBP 887.00 | |
| Santovac 5 - Vacuum Pump Oil, 1 x 0.5 l, H11401002 | H11401002 | GBP 3,389.00 |