VLM bypass and throttling (lamination) valve for gas stations, balanced plug, top-entry body, by Pietro Fiorentini
Bypass Valve

VLM Bypass and Throttling Valve

The VLM is a manually operated bypass and throttling (lamination) device, particularly suitable for natural gas distribution installations and for supply networks for civil and industrial use. Featuring a soft insert on valve seats for enhanced tightness and a balanced shutter mechanism for easier operation, it provides reliable flow control. The top-entry body design is suitable for flanged connections, and special versions are available for pure or blended hydrogen. Compatible with natural gas and previously treated, non-corrosive gaseous fluids.

Supplied and supported across Saudi Arabia, the GCC and the Middle East from Al Khobar

PED Certified
Up to 100 bar
H2 Versions Available

Technical Specifications

Detailed technical data for the VLM Bypass Valve

Performance
Maximum Inlet Pressure Up to 100 bar
Design Temperature -20°C to +60°C
Function Bypass & Throttling
Operation Balanced Shutter Mechanism
Construction
Nominal Sizes Up to 8″
Flange Standards (ASME) Class 150/300/600 RF or RTJ (ANSI B16.5)
Flange Standards (EN/ISO) PN16 (EN 1092, ISO 7005)
Hydrogen Compatibility Special Versions for Pure or Blended H2

Applications

High-Pressure Transmission
Gas Distribution MP
District Stations
City Gate Stations
NG-H2 Blending

Key Features

Soft Seat Insert

Soft insert on valve seats ensures enhanced tightness and reliable sealing performance.

Balanced Shutter

Balanced shutter mechanism provides easier operation and smooth control.

Hydrogen Versions

Available in special versions for pure or blended hydrogen.

Top-Entry Design

Top-entry body suitable for flanged connections allows easy maintenance access.

High-Pressure Capability

Maximum inlet pressure up to 100 bar for demanding applications.

Versatile Connections

Multiple ANSI and EN/ISO flange options including RF and RTJ configurations.

Frequently asked questions

What is the VLM valve used for?

The VLM is a manually operated shut-off and lamination valve, used as a bypass and throttling device in natural gas distribution installations and supply networks for civil and industrial use, including first stage stations, compression stations and power plants. It has a top entry body for flanged coupling, a soft insert on the seat for a better seal and a balanced plug for easier opening and closing.

What sizes, pressures and options does the VLM offer?

The VLM flyer gives a maximum inlet pressure of 100 barg and sizes from DN 25 to DN 200 (1 to 8 inch), with Class 150, 300, 600 RF or RTJ or PN 16 flanges. A silencer, a slam shut valve or a second plug in series can be built in. Tightness is class VI to ANSI/FCI 70-2, and special versions exist for hydrogen.

Do you supply the VLM to stations in Saudi Arabia and the GCC?

Pietro Fiorentini Saudi Industry in Al Khobar supplies and supports the VLM for gas stations in Saudi Arabia, the UAE, Qatar, Kuwait, Bahrain and Oman. Tell us the line size, inlet pressure and accessories you need, and we will prepare a quotation.

Need More Information?

Our technical team is ready to help you select the right bypass valve for your application.