BLACKMER Rotary Vane Pumps with External Bearings for Use in Propane and NH₃ Applications
BLACKMER LGL pumps for LPG and AMMONIA
BLACKMER LGL-Serie – rotary vane pumps
Rotary Vane Pumps with External Bearings for Use in Propane and NH₃ Applications
BLACKMER LGL Series Rotary Vane Pumps – Cavitation Line
The LGL series rotary vane pumps, part of the so-called Cavitation Line, are designed for propane and ammonia (NH₃) pumping and transfer applications. Thanks to an innovative rotary vane principle, the LGL series pumps are positive displacement pumps that combine consistently high performance with energy efficiency, reliable, low-maintenance operation, and low service costs.
The BLACKMER LGL series pumps are especially suited as LPG transfer pumps for a wide range of industrial applications. With replaceable end plates, wear sleeves, and vanes, the pumps can be overhauled and restored to like-new condition without removing the pump housing from the piping system.
BLACKMER LG1 Pumps (Sliding Vane Pumps)
The BLACKMER LG1 series rotary vane pumps are compact, motor-driven propane transfer pumps made of ductile iron, specifically designed for applications with limited installation space. They enable efficient gas cylinder filling as well as small-volume transfer, for example in engine fueling or supplying small vaporizer systems.
As part of the Cavitation Line, the LG1 series pumps feature a 1-inch connection and have proven themselves over many years as a reliable solution for liquefied gas transfer. Their design is based on the robust, proven construction of larger Blackmer sliding vane pumps, offering high operational reliability and long service life.
The LG1 pumps are available in two mounting configurations and with different flow capacities, and are designed exclusively for use with propane, LPG, butane, and anhydrous ammonia.
Configurations:
-
BLACKMER LGF1
The LGF1 version comes with an integrated mounting bracket and coupling for direct flange mounting to a NEMA C-Face motor. The design allows rotation of the pump housing, facilitating adaptation to existing piping systems. -
BLACKMER LGB1
The LGB1 version features a coupling and bracket for mounting on a conventional base frame, making it suitable for flexible plant layouts.
BLACKMER LGRL1.25, LGL1.25, LGL1.5 – rotary vane pumps
Ductile Iron Rotary Vane Pumps for Propane with Motor Drive – Suitable for Fueling and Multi-Cylinder Filling
The Blackmer® LGRL and LGL rotary vane pumps, part of the Cavitation Line, are ideally suited for a wide range of liquefied propane applications, including engine fueling, multi-station cylinder filling, and various small transfer tasks.
All models are equipped with 1.25- or 1.5-inch NPT female threaded connections, an internal safety valve, and a cavitation suppression liner that reduces noise, vibration, and wear. The propane transfer pumps can be easily overhauled and restored to like-new condition thanks to replaceable end plates, vanes, and cavitation liners.
These rotary vane pumps are suitable for propane, LPG, butane, and anhydrous ammonia.
Flange-Mount Option
The rotary vane pumps are also available in a flange-mount configuration.
The standard BLACKMER models LGRLF1.25, LGLF1.25, and LGLF1.5 come with an integrated mounting frame and flexible coupling and can be directly coupled to NEMA C- or IEC-flange motors. All LGLF rotary vane pumps are available with or without an electric motor.
BLACKMER LGLD2-4 – sliding vane pumps
Ductile Iron Multi-Purpose Pumps for Propane – Suitable for Bulk Facilities, Terminals, and Truck Systems
The BLACKMER LGLD rotary vane pumps, part of the Cavitation Line, are ideal for propane, LPG, butane, and anhydrous ammonia. Typical applications include:
- Bulk facilities (large-scale filling stations)
- Multi-cylinder filling
- Bobtails and transport vehicles
All BLACKMER LGLD propane pumps feature an internal safety valve and replaceable housing liners and end plates, allowing easy overhaul of the pumping chamber. In addition, the pumps are equipped with cavitation suppression liners to reduce noise, vibration, and wear.
Mounting Options
Blackmer LGLD2 propane pumps are commonly mounted directly to the chassis of a bobtail or onto a welded steel plate on the tank. The 3- and 4-inch rotary vane pumps can be installed on transport vehicles in various ways, typically near or between the tank support brackets.
Fully Integrated Unit Assemblies
PPTEC-ENERGY offers preconfigured, prefabricated complete systems as ready-to-use pump solutions.
These units include:
- Motor
- Gearbox
- Baseplate
- Coupling guards
- LGL rotary vane pump in 2, 3, or 4-inch sizes
Thanks to these preconfigured units, no alignment is required – the pump solution can be installed directly.
BLACKMER TLGLF – sliding vane pumps
Ductile Iron Multi-Purpose Pumps for Propane Trucks – Suitable for Mobile Bulk LPG Applications
The Blackmer® TLGLF rotary vane pumps are flange-mounted propane truck pumps. They are certified for propane, butane, and anhydrous ammonia and are available in three models:
- BLACKMER TLGLF3 (3-inch)
- BLACKMER TLGLF3HD (3-inch, High-Flow)
- BLACKMER TLGLF4 (4-inch)
The BLACKMER TLGLF4 pump achieves a maximum flow rate of 425 gpm (1,608 L/min) and is designed for loading and unloading transport vehicles.
The BLACKMER TLGLF3 pump, developed for bobtail trucks, provides a flow rate of 140 gpm (530 L/min), ideal for smaller tanks.
The BLACKMER TLGLF3HD pump increases the flow rate by approximately 55 % compared to the TLGLF3, reaching 180 gpm (681 L/min), and is suitable for high-capacity bobtail trucks with tank sizes up to 7,000 gallons.
Technical Features
- Maximum differential pressure: 125 psi (8.62 bar)
- Drive: PTO shaft or hydraulic motor via adapter kit
- Direct mounting: No suction lines, shut-off valves, or external filters required – prevents flow restrictions and vaporization issues, ensures stable flow performance and longer service life
- Cavitation suppression: Special liners reduce noise, vibration, and wear caused by cavitation
