Based on Blackmer® industry-standard LGLD3 transfer pump, the LGL3021, which is part of the Cavitation Line of sliding vane pumps, replaces competitive pumps without changing piping connections or motor drives. The LGL3021 is ideal for filling a bobtail or transport truck – the LGL3021 can do it faster and more efficiently than competitive models. This pump is UL listed for use on propane, butane butane/propane mixes and anhydrous ammonia. In addition, these pumps feature cavitation suppression liners to reduce noise, vibration and wear.
Features and Benefits
- Pumps are listed by Underwriters Laboratory for both LPG and anhydrous ammonia (NH3) service
- Cavitation suppression liner design for reducing the noise, vibration, and wear normally caused by entrained vapors
- Replaceable casing, liners and end discs allow easy rebuilding of the pumping chamber to like-new condition
- Ductile-iron construction with internal relief valve
- Durable pumps for fast and quiet operation, providing sustained performance and trouble-free operation
- Includes double-ended drive shaft arrangement, allowing pump to be easily positioned for clockwise or counter-clockwise shaft rotation
- Blackmer mechanical seal and ball bearing construction provide maximum reliability
- Symmetrical bearing support assures even loading and wear for long life
- 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
- Bulk plant service
- Multiple cylinder filling applications
- Vaporizers
- Bobtail trucks
- Transport trucks
- Anhydrous ammonia (NH3)
Performance and Specifications
AVAILABLE MODELS
- LGL3021
VISCOSITY
- 0.2 - 10 cP
CONNECTION ORIENTATION
- Side Inlet | Top Outlet
TEMPERATURE
- -25°F to 240°F (-32°C to 115°C)
NOMINAL FLOW RATE RANGE
- 60 - 210 gpm (227 - 795 L/min)
DIFFERENTIAL PRESSURE
- 150 psi (10.3 bar)
MAXIMUM WORKING PRESSURE (MAWP)
- 350 psi (24.1 bar)
AVAILABLE CERTIFICATES
- Hydrostatic Test
- Performance Test
- NPSH Test
- Material (actual or typical)
- Dimensional (pump only or unit)
PRIMARY MATERIALS OF CONSTRUCTION
- Ductile Iron
VANE MATERIALS
- Duravane
MIN/MAX SPEED (rpm)
- 350 - 980
Dimensions
| Pump Model | L | W | H | Approx. Wt. | |
|---|---|---|---|---|---|
| LGL3021A | in | 19 | 13-7/16 | 12-2/3 | 157 lb |
| mm | 484.1 | 341.3 | 322.3 | 71 kg |
Materials of Construction
| PRESSURE PARTS | Material |
|---|---|
| Casing, Heads, Relief Valve Cover | Ductile Iron: ASTM 536 |
| Discs, Liner | Cast Iron: ASTM A48 |
| Bearing Covers | Steel |
| Bearing Locknut and Lockwasher | Steel |
| Rotor | Ductile Iron: ASTM 536 |
| Shaft | High Tensile Steel |
| Relief Valve | Cast Iron: ASTM A48 |
| Relief Valve Spring | Plated 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 | Top Flange Inlet Bottom Side Outlet |
| CONNECTION OPTIONS | NPT (threaded) |
| MOUNTING OPTIONS | Pump Only |
| 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 - 10 cP |
Elastomer Options
| Material | Temperature Limits |
|---|---|
| Buna-N | -25°F to 240°F (-31°C to 115°C) |
Maintenance Kits
| Model(s) | Description | Part Number |
|---|---|---|
| LGL3021A | Kit - Rebuild – NH3 or Dual Service (QA) | 899095 |
| LGL3021A | Kit - Maintenance – NH3 or Dual Service (QA) | 899195 |