TXV Sliding Vane Pumps

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

Application

Transport delivery, fleet refueling, & bulk transfer:

Asphalts
Greases
Lube oils
Resins
Molasses
Bunkered fuels
Inks
Adhesives

Performance and Specifications

AVAILABLE MODELS

TXV2.5
TXV3

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)

VISCOSITY

0.2 - 10,500 cP

TEMPERATURE

TXV: -25°F to 375°F (-32°C to 191°C)

MIN/MAX SPEED (RPM)

TXV: 200 - 640

CONNECTION ORIENTATION

Same Side Inlet and Outlet

VANE MATERIALS

TXV: Bronze

CATALOG OPTIONS

Connections: NPT, Weld, Victaulic
Elastomers: FKM standard, PTFE option
Valve: Corrosion resistant
Inlet Strainer, Hydraulic Motor Adapter

AVAILABLE CERTIFICATES

Hydrostatic Test
Performance Test
NPSH Test
Material (actual or typical)
Dimensional (pump only or unit)

PRIMARY MATERIALS OF CONSTRUCTION

Cast Iron

Model

Length

Weigth

Height

Approx W.

TXV2.5

TXV3

in
mm

17-3/4
450.9

19-4/9
493.7

10-3/4
273.1

13-1/2
342.9

9-5/8
244.5

12-4/5
325.4

90 lb
41 kg

149 lb
149 lb

Part

TXV2.5, TXV3

Material

Cast Iron: ASTM A48