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IMI Maxseal
L72 - Back Pressure Regulator
The IMI Maxseal L72 Series 3/4 inch back pressure regulator provides accurate upstream pressure control for demanding high and low pressure gas and liquid applications.
Controls back pressure up to 414 bar across a wide range of operating conditions.
Maintains stable upstream pressure with a 12.5 mm seat design under varying flow and inlet conditions.
Built for severe service with stainless steel construction and Class VI tight shutoff.
Features
The IMI Maxseal L72 Series is a 3/4 inch back pressure regulator designed for accurate upstream pressure control in high and low pressure applications. Suitable for gas and liquid media, it supports inlet pressures up to 414 bar with a wide selection of control ranges to match system requirements. A 12.5 mm valve seat helps maintain stable upstream pressure as flow and inlet conditions vary, while tight shutoff meets ANSI FCI 70-3 Class VI and API 598. The regulator features a 316L stainless steel body and trim for durability in harsh environments, along with multiple seal material options to suit different media and temperatures. Standard connections include 3/4 inch NPT or BSPP ports, with integrated gauge ports and a vent for monitoring. Options include tamper-proof adjustment, panel mounting, NACE compliance, and ASTM G93 Level C cleaning.
Key features
Up to 414 bar back pressure control
Gas and liquid compatible
Class VI tight shutoff
316L stainless steel construction
ATEX and PED compliant
NACE option available
Tamper-proof option
Panel mounting option
Gauge ports and vent included
Low temperature option to -50 °C
Specifications
Loading
Spring Loaded
Fluid Types
Gas
Liquid
Port Size (")
0.5 to 0.5
Maximum Working Pressure (barg)
414
Maximum Set Pressure (barg)
414
Ambient Temperature (°C)
-50 to 100
Body Material
Stainless Steel 316L
Seal Material
NBR
FKM
EPDM
Low Temperature NBR
Certification
PED
ATEX
NACE
Resources
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