LGLD2 , LGLD3, LGLD4 – 2”, 3” and 4” LPG Transfer Sliding Vane Pump

blackmer-lgld2-lpg-transfer-sliding-vane-pump

blackmer-lgld3-lpg-transfer-sliding-vane-pump

blackmer-lgld4-lpg-transfer-sliding-vane-pump

Blackmer LGLD2 , LGLD3, LGLD4 – 2”, 3” and 4” LPG Transfer Sliding Vane Pump

As a component of the Cavitation Line of sliding vane pumps, the LGLD propane pumps are well-suited for a range of applications, including propane, LPG, butane, and anhydrous ammonia use. These applications encompass bulk plant service, multiple cylinder filling scenarios, vaporizers, bobtails, and transports. Each LGLD propane pump model incorporates an internal relief valve, and the pumping chamber can be easily rebuilt when necessary with replaceable casing liner and end discs. Additionally, these pumps are equipped with cavitation suppression liners, effectively reducing noise, vibration, and wear.

Typically, Blackmer® LGLD2 propane pumps find placement on the chassis of a bobtail or on a welded steel pad attached to the tank. The 3- and 4-inch rotary vane pump models offer versatile mounting options on transports, typically in proximity to or between the tank landing gear brackets.

For a streamlined pumping solution, Blackmer offers fully Integrated Unit Assemblies, which are pre-engineered and designed for easy installation. These unit assemblies come complete with a motor, gearbox, baseplate, coupling safety covers, and a LGL Sliding Vane Pump (2, 3 & 4-inch sizes). The advantage of these pre-configured fully Integrated Unit Assemblies is their ready-to-install nature, eliminating the need for alignment and enabling immediate drop-in installation.

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Pumps are certified by Underwriters Laboratory for both LPG and anhydrous ammonia (NH3) applications.
The cavitation suppression liner design mitigates the typical noise, vibration, and wear caused by entrained vapors.
The pumping chamber can be easily restored to a like-new condition with replaceable casing, liners, and end discs.
Constructed from ductile iron and featuring an internal relief valve, these pumps ensure durability and reliability.
They are designed for rapid and quiet operation, delivering sustained performance and trouble-free functionality.
LGLD2 and LGLD3 models feature a double-ended drive shaft arrangement, which is particularly popular for bobtail service.
Maximum reliability is ensured through the implementation of Blackmer mechanical seal and ball-bearing construction.
Symmetrical bearing support guarantees even loading and wear, contributing to a prolonged operational life.
These pumps can be mounted to a truck or the chassis of a bobtail, or alternatively, to a steel pad welded to the tank.
An internal relief valve is incorporated to safeguard the pump against excessive pressures.
External ball bearings are strategically isolated from pumpage by mechanical seals, maximizing bearing life and minimizing the risk of contamination.

AVAILABLE MODELS

LGLD2
LGLD3
LGLD4

NOMINAL FLOW RATE RANGE

LGLD2: 30 - 105 gpm (114 - 397 L/min)
LGLD3: 60 - 201 gpm (227 - 761 L/min)
LGLD4: 150 - 370 gpm (568 - 1,400 L/min)

MIN/MAX SPEED (RPM)

LGLD2: 350 - 980
LGLD3: 350 - 980
LGLD4: 350 - 800

VISCOSITY

0.2 - 10 cP

VANE MATERIALS

Duravane

MAXIMUM WORKING PRESSURE (MAWP)

350 psi (24.1 bar)

CONNECTION ORIENTATION

Side Inlet | Top Outlet

DIFFERENTIAL PRESSURE

150 psi (10.3 bar)

PRIMARY MATERIALS OF CONSTRUCTION

Ductile Iron

TEMPERATURE

-25°F to 240°F (-32°C to 115°C)

AVAILABLE CERTIFICATES

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

PUMP MODEL		L	W	H	APPROX. WT.
LGLD2	in	13-4/9	9-11/16	10	85 lb
LGLD2	mm	341.3	246.1	254	38.6 kg
LGLD3	in	20-3/8	13-1/4	13-3/8	160 lb
LGLD3	mm	517.5	336.6	339.7	72.6 kg
LGLD4	in	16-3/8	16-15/16	15-4/9	205 lb
LGLD4	mm	415.9	430.2	392.2	93 kg

PRESSURE PARTS
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 Strength Steel
Relief Valve	Cast Iron: ASTM A48
Relief Valve Spring	Plated Steel

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 OPTION	Top Outlet: Outlet 90º offset from inlet
CONNECTION OPTIONS	NPT (threaded) Welded
MOUNTING OPTIONS	Pump Only Gearbox Unit: Pump, Gearbox, Motor, Baseplate, Couplings, Guards Belt Unit: Pump, V-Belt Drive, 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 - 10 cP

Elastomer Options

MATERIAL	TEMPERATURE LIMITS
Buna-N	-25°F to 240°F (-31°C to 115°C)

MODEL(S)	DESCRIPTION	PART NUMBER
LGLD2E, LGL2E	Kit - Maintenance – NH3 or Dual Service (QA)	898979
LGLD2E	Kit - Rebuild – NH3 or Dual Service (QA)	899079
LGLD3F, LGL3F	Kit - Maintenance – NH3 or Dual Service (QA)	898981
LGLD3F	Kit - Rebuild – NH3 or Dual Service (QA)	899081
LGLD4B, LGL4B	Kit - Maintenance	898922
LGLD4B	Kit - Rebuild (LGLD4B)	899022