What can we help you find?

Just answer a few questions, and our Product Finder will guide you to the right solution!

  • Products

      What can we help you find?

      Just answer a few questions, and our Product Finder will guide you to the right solution!

  • Parts

      What can we help you find?

      Just answer a few questions, and our Product Finder will guide you to the right solution!

  • Resources

      What can we help you find?

      Just answer a few questions, and our Product Finder will guide you to the right solution!

  • Support

      What can we help you find?

      Just answer a few questions, and our Product Finder will guide you to the right solution!

Item: MRLN4B
Description: MRLN4B sliding vane pump, for the handling of highly viscous liquids or abrasive slurries.
MRLN4B-product image
ImageSetByPath

MRLN4B, Vane Pump, Reduced Rate, Double Ended, Base Mount, Ductile Iron, GPM 75% of std

Item: MRLN4B
Description: MRLN4B sliding vane pump, for the handling of highly viscous liquids or abrasive slurries.
  • Mounting: PUMP ONLY
  • Model: MRLN4B
Attributes for item MRLN4B
Shipping Weight (lbs):
385
Accessories:
0 None
Bypass Valve Relief Valve Spring Setting:
0
Elastomers:
2 FKM ELASTOMERS
Flanges:
X INTEGRAL 4" ANSI CL 150 FF FLANGED CONNECTIONS
Mounting:
PUMP ONLY
Relief Valve:
1 BOLT ON RV
Rotor and Shaft:
40 DOUBLE END SHAFT
Relief Valve Spring Setting:
101
Relief Valve Spring:
5 76-125 PSI STEEL RV SPRING
Standard Construction 1:
N BUSHING - CARBON
Standard Construction 2:
0 STANDARD SELECTION - SC2
Standard Construction 3:
0 STANDARD SELECTION - SC3
Standard Construction 4:
0 STANDARD SELECTION - SC4
Seal:
G0 PTFE PACKING
Standard Relief Valve Spring Setting:
1
Vanes:
6 LAMINATE-EC
TOTAL-LEAD-TIME:
Show All Attributes
Show Fewer Attributes
Recommended Products
Spare Parts for item MRLN4B
Performance for item MRLN4B

At 500 RPM and 100 psi differential pressure, the MLX4/MLXW4/MLN4/MRLX4/MRLXW4/MRLN4 pump delivers 405 gpm (1,530 lpm) of a fluid with a viscosity of 30 SSU.

At 500 RPM and 100 psi differential pressure, the MLX4/MLXW4/MLN4/MRLX4/MRLXW4/MRLN4 pump requires 31 hp (23 kW) to handle a fluid with a viscosity of 30 SSU.

Item Overview for Blackmer MRLN4B
The Blackmer MRLN4B is a specialized vane pump combining MRLN4B, Vane Pump, Reduced Rate, Double Ended, Base Mount, Ductile Iron, GPM 75% Of Std with a configuration suited to industrial fluid movement. Its construction brings together Pump Only, and PTFE Packing, and X Integral 4" ANSI Cl 150 Ff Flanged Connections, and FKM Elastomers, presenting the main operating elements as one clearly defined build for technical evaluation. The product connects its intended function with the construction and configuration details that matter when equipment is evaluated for service. Within Blackmer’s process offering, it gives teams a recognizable option for comparing equipment, planning service work, or documenting installed assets. The result is a clear, search-friendly product profile for engineers, buyers, and maintenance professionals. It keeps attention on the item’s purpose and defining construction, making the product easier to evaluate for planned service, replacement, or new equipment integration.