ITG and L9 — actuated gas throttle valves (DN 50–200) and wafer/lug butterfly valves up to 16 bar; VDJ expansion joints

Country: · Model: ITG, L9, VDJ/VDJF

Auxiliary elements of gas trains for flow control and pipe isolation. ITG throttles gas to a modulating burner at 500 mbar, L9 provides a lug butterfly valve up to 16 bar, and VDJ damps vibration at 3 bar.

ITG: motorized throttle valve for modulating and two-stage burners
ITG — media: hot air, natural and town gas, LPG, non-aggressive gases
ITG — Pmax: 500 mbar
ITG — regulation: 1:10; angle up to 90°; PN 16 flanges DN 50–200, ANSI 150 on request

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Technical specifications

ITG	motorized throttle valve for modulating and two-stage burners
ITG — media	hot air, natural and town gas, LPG, non-aggressive gases
ITG — Pmax	500 mbar
ITG — regulation	1:10; angle up to 90°; PN 16 flanges DN 50–200, ANSI 150 on request
ITG — temperature	−40…+70 °C
L9	lug-type butterfly valves, Pmax 16 bar between flanges, PN 16 DN 50–200, −10…+80 °C; biogas version
VDJ / VDJF	expansion/anti-vibration joints, 3 bar, thread 1/2″–2″, flanges DN 40–300; gases, biogas, air; −40…+80 °C
Conformity	PED 2014/68/EU (L9, VDJ)

Specifications are taken from the manufacturer’s technical documentation. Updated 11/06/2026.

Description

ITG moves the valve disc with a lever mechanism, and the repositioning time depends on the actuator, which the customer can choose freely or take the recommended one. The valve has low leakage and pressure loss, a regulation range of 1:10, an angle up to 90°, a spherical sector of 30°, ambient temperature from −40 to +70 °C, and works on hot air, natural and town gas, LPG. PN 16 flanges DN 50, 65, 80, 100, 125, 150 and 200 per ISO 7005 and EN 1092-1, ANSI 150 on request. Pressure is up to 500 mbar (50 kPa). L9 is a lug-type disc valve for 16 bar between flanges, PN 16 DN 50–200, from −10 to +80 °C, with a biogas version and ANSI 150, conforming to PED 2014/68/EU. VDJ and VDJF damp vibration and compensate small pipe displacements. The media are gases of three families, biogas and air, pressure up to 3 bar, from −40 to +80 °C. The thread R 1/2–2 inches is male (VDJ) or female (VDJF), with PN 16 flanges DN 40–300 per EN 1092-1. DN 40 and above conform to PED, while small threaded sizes are excluded from CE marking under Art. 4.3 of the directive.

How to choose

If the flow must be regulated smoothly, ITG is taken; to shut off and regulate large gas or air lines, L9 with pressure up to 16 bar. VDJ is installed where burner or pump vibration is transmitted to the pipe. An FM filter is installed at the inlet ahead of them, and for emergency fuel shut-off there is SM/SMO.

Request a price and lead time

ITG and L9 — actuated gas throttle valves (DN 50–200) and wafer/lug butterfly valves up to 16 bar; VDJ expansion joints. We reply within one business day.