Blackmer® TXV Rotary Vane Pumps, are part of the Iron Line of sliding vane pumps, feature and open-rotor design and have been specifically designed for the high-temperature transfer of thick, viscous fluids, including asphalts. The key to the versatility of these pumps is the unique Blackmer sliding vane rotor design that self-adjusts for wear to provide a sustained, high level performance over a wide viscosity range. Slow operating speeds and non-pulsating flow minimizes shear and agitation of the fluid.
TXV pumps delivers more fluid per revolution than comparably ported gear pumps. And slower operating speeds mean longer service life and reduced maintenance requirements. These pumps come standard with bronze vanes, and are available in 2.5- and 3-in port sizes.
Features and Benefits
- External roller ball bearings support the rotor from both sides, creating a stable environment for the internal mechanical seals
- Ideal for handling viscous or shear sensitive fluids
- Special open rotor design that offers easy flushing, bronze vanes, FKM elastomers, PTFE lip seals (available on TXV pumps only)
- Blackmer mechanical seal and ball-bearing construction provide maximum reliability
- Internal mechanical seals allow for extended dry run and continuous operation with non-lubricating liquids
- Symmetrical bearing support assures even loading and wear for long life
- Slower operating speeds means longer service life and reduced maintenance requirements
- High-performance capabilities including self-priming and line clearing
- External ball-bearings are isolated from pumpage by mechanical seals to maximize bearing life and minimize contamination risk
- Advantages of sliding vane technology:
- Unique sliding-vane pump design self-adjusts for wear to maintain flow rates
- Excellent self-priming and dry-run capabilities
- Sliding vane design provides sustained performance and trouble-free operation
- Easy maintenance: vanes can be easily replaced without removing the pump from the piping system
- High suction lift and line-stripping capabilities
- Low maintenance and low life-cycle costs
Applications
Transport delivery, fleet refueling & bulk transfer:
- Asphalts
- Greases
- Lube oils
- Resins
- Molasses
- Bunkered fuels
- Inks
- Adhesives
Performance and Specifications
AVAILABLE MODELS
- TXV2.5
- TXV3
VISCOSITY
- 0.2 - 10,500 cP
CONNECTION ORIENTATION
- Side Inlet | Top Outlet
TEMPERATURE
- TXV: -25°F to 375°F (-32°C to 191°C)
NOMINAL FLOW RATE RANGE
- TXV2.5: 80 - 136 gpm (302 - 513 L/min)
- TXV3: 175 - 276 gpm (662 - 1,043 L/min)
DIFFERENTIAL PRESSURE
- 125 psi (8.6 bar)
MAXIMUM WORKING PRESSURE (MAWP)
- 175 psi (12.1 bar)
AVAILABLE CERTIFICATES
- Hydrostatic Test
- Performance Test
- NPSH Test
- Material (actual or typical)
- Dimensional (pump only or unit)
PRIMARY MATERIALS OF CONSTRUCTION
- Cast Iron
VANE MATERIALS
- TXV: Bronze
MIN/MAX SPEED (rpm)
- TXV: 200 - 640
CATALOG OPTIONS
- Connections: NPT, Weld, Victaulic
- Elastomers: FKM standard, PTFE option
- Valve: Corrosion resistant
- Inlet Strainer, Hydraulic Motor Adapter
Dimensions
| Pump Model | L | W | H | Approx. Wt. | ||
|---|---|---|---|---|---|---|
| TXV2.5 | in | 17-3/4 | 10-3/4 | 9-5/8 | 90 lb | |
| mm | 450.9 | 273.1 | 244.5 | 41 kg | ||
| TXV3 | in | 19-4/9 | 13-1/2 | 12-4/5 | 149 lb | |
| mm | 493.7 | 342.9 | 325.4 | 68 kg | ||
Materials of Construction
| Pump Model | Pressure Parts | Materials |
|---|---|---|
| TXV2.5, TXV3 | Cylinder, Heads, Relief Valve Cover | Cast Iron: ASTM A48 |
Pump Options
| Options | Details | |
|---|---|---|
| Orientation Options | Double End: drive pump from either side | |
| Porting Options | Top Outlet: Outlet 90° offset from inlet | |
| Connection Options | NPT (threaded), Welded, Victaulic | |
| Mounting Options | Pump Only with Hydraulic Motor Adapter and/or Inlet Strainer | |
| Sealing Options | Blackmer single mechanical seal Lip Seal – Turcon | |
Vane Options
| Materials | Temperature Limits | Viscosity |
|---|---|---|
| Bronze | -25°F to 350°F (-32°C to 177°C) | 105 - 10,500 cP |
| Duravane | -25°F to 240°F (-32°C to 115°C) | 0.2 - 4,250 cP |
| EC Laminate | -25°F to 350°F (-32°C to 177°C) | 0.2 - 8,500 cP |
Elastomer Options
| Pump Models | Material | Temperature Limits |
|---|---|---|
| TXV2.5, TXV3 | FKM | -25°F to 350°F (-32°C to 177°C) |
Maintenance Kits
| Model(s) | Description | Part Number |
|---|---|---|
| TXV2.5B | Kit - Maintenance | 898954 |
| TXV3B | Kit - Maintenance | 898955 |