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Blackmer® is the leading global provider of innovative, high-quality sliding vane, centrifugal, screw and regenerative turbine pump, and reciprocating gas compressor technologies for the safe transfer of liquids and gases.

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Providing Innovative Product-Transfer Solutions for a Variety of Markets and Applications

Blackmer provides innovative product transfer solutions for many markets and applications, including in the chemical process, energy, transport, military & marine; general industrial, and oil & gas industries.

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General Industrial

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X2_120904

X & XH Sliding Vane Pumps Rotary Pumps For Trouble-Free Operation and Low Maintenance Cost

X & XH positive displacement rotary pumps, part of the Iron Line of sliding vane pumps, utilize a unique sliding vane design to offer the best combined characteristics of sustained high level performance, energy efficiency, trouble-free operation and low maintenance cost. Also, the high suction lift capability of these pumps makes them especially suitable for pumping from underground tanks, bulk plant service and aircraft refueling.

Blackmer® X & XH model pumps are available in 2-, 2.5-, 3- and 4-in flanged port sizes with capacities from 30 to 520 U.S. gpm (114-1,855 L/min). Cast-iron construction is standard on all models except the X4 model which is ductile iron construction. All models have external ball bearings isolated from the pumpage by mechanical seals.

XH series models are available in 2-, 2.5-, 3- and 4-in flanged port sizes with capacities from 30 to 520 U.S. gpm (114-1,855 L/min). The pump cylinders are all constructed of ductile iron with 180° ports. All models have external ball bearings isolated from the pumpage by mechanical seals.

Features and Benefits

  • Durable pumps for fast and quiet operation
  • Latest 6-vane design contributes to reduced noise levels in the pumps
  • Blackmer mechanical seal and ball bearing construction provide maximum reliability
  • Symmetrical bearing support assures even loading and wear for long life.
  • Adjustable relief valve protects pump against excessive pressures.
  • 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

Blending, loading, unloading & transfer of:

  • Fuel oil
  • Jet fuel
  • Gasoline
  • Ethanol & other alcohols
  • Lube oil
  • Solvents
  • Ester
  • Ketone
  • Naphtha
  • Ether
  • Amine
  • Aromatic
  • Terpene
  • Glycol
  • Additives

Performance and Specifications

Available Models
  • X2
  • XH2
  • X2.5
  • XH2.5
  • X3
  • XH3
  • X4
  • XH4
Nominal Flow Rate
  • X(H)2: 10 - 82 gpm (380 - 311 L/min)
  • X(H)2.5: 20 - 148 gpm (76 - 562 L/min)
  • X(H)3: 60 - 270 gpm (227 - 1,022 L/min)
  • X(H)4: 220 - 528 gpm (833 - 2,000 L/min)
Differential Pressure
  • 125 psi (8.6 bar)
Maximum Working Pressure (MAWP)
  • 175 psi (12.1 bar)
Viscosity
  • 0.2 - 4,250 cP
Temperature
  • -25°F to 300°F (-32°C to 148°C)
Min/Max Speed (rpm)
  • X(H)2: 70 - 780
  • X(H)2.5: 70 - 780
  • X(H)3: 70 - 640
  • X(H)4: 70 - 520
Primary Materials of Construction
  • X: Cast Iron
  • XH: Ductile Iron
Connection Orientation
  • X: Side Inlet | Top Outlet
  • XH: Side Inlet | Side Outlet
Vane Materials
  • Duravane
  • EC Laminate
  • Bronze
  • Iron
Catalog Options
  • Connections: NPT, Weld, ANSI Flange
  • Elastomers: BUNA, FKM, PTFE
  • Seal: Blackmer single mechanical
Available Certificates
  • Hydrostatic Test
  • Performance Test
  • NPSH Test
  • Material (actual or typical)
  • Dimension (pump only or unit)

Dimensions

Pump Model L W H Approx. Wt.
X2 in 15-1/4 9-3/4 8-2/3 70 lb
mm 387.4 247.7 211.6 32 kg
X2.5 in 14-3/4 10-11/16 9-5/8 93 lb
mm 374.7 270.8 244.7 42 kg
X3 in 16 13-7/16 12-1/4 152 lb
mm 406.4 341.4 311.2 69 kg
X4 in 19-1/8 16-1/2 15-1/2 275 lb
mm 486.4 419.1 393.7 125 kg
XH2 in 13-1/4 10-1/16 8-7/8 65 lb
mm 336.6 255 224.8 29 kg
XH2.5 in 14-3/4 11-1/8 9-4/5 85 lb
mm 374.7  283.2 248.9 39 kg
XH3 in 16 14-1/3 12-1/16 137 lb
mm 406.4 363.9 306.3 62 kg
XH4 in 19-1/16 17-15/16 15-9/16 292 lb
mm 484.1 455.7 394.9 132 kg

Materials of Construction

Parts Models Materials
Cylinder, Relief Cover Valve X2, 2.5, 3
X4 and all XH
Cast Iron: ASTM A48
Ductile Iron: ASTM 536
Head X(H)2, 2.5, 3
X4, XH4
Cast Iron: ASTM A48
Ductile Iron: ASTM 536
Bearing Covers X(H)2, 2.5, 3
X(H)4
Steel
Cast Iron: ASTM A48
Locknut and Lockwasher X2.5, XH2.5, X3, XH3 Only Steel
Rotor & Shaft All Models Ductile Iron: ASTM 536
Shaft All Models  High Strength Steel

Pump Options

Options Details
ORIENTATION OPTIONS Right Hand: INLET is to the right, when looking from driven side
Left Hand: INLET is to the left, when looking from driven side
PORTING OPTIONS X Series: Top Outlet: Outlet 90º offset from inlet
XH Series: Side Outlet: Outlet 180° offset from inlet
CONNECTION OPTIONS NPT (threaded)
Welded, ANSI Flange (CI 150 RF)
MOUNTING OPTIONS Pump Only
Unit: Pump, Gearbox, Motor, Baseplate, Couplings, Guards
SEALING OPTIONS Blackmer single mechanical seal

Vane Options

Material Temperature Limits Viscosity
Duravane -25°F to 240°F (-32°C to 115°C) 0.2 - 4,250 cP
EC Laminate -25°F to 300°F (-32°C to 148°C) 0.2 - 8,500 cP
Bronze -25°F to 300°F (-32°C to 148°C) 105 - 108,000 cP
Cast Iron -25°F to 300°F (-32°C to 148°C) 105 - 108,000 cP

Elastomer Options

Material Temperature Limits
BUNA -25°F to 240°F (-32°C to 117°C)
FKM -15°F to 300°F (-26°C to 150°C)
PTFE -25°F to 300°F (-32°C to 150°C)

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