News

AC W031 STD will replace AC W03

03.11.2021


We would like to inform that at the end of 2021, AC W03 injector will be replaced by AC W031 STD injector. This change will affect the speed and comfort of installation of injectors used in our autogas installations. 

Why W031 STD?  
 
The new injector model is smaller than its predecessor. Smaller dimensions make it easier and faster to install.   

In this design, we have provided the possibility of direct installation in the distributor. As a result, the number of connections decreased and the precision of gas dosage increased. This was achieved by shortening the hoses supplying the injector with the manifold.  New devices were also used here to precisely calibrate the injector in terms of gas flow through the section. 

During the production of W031 STD, we used materials which improve the injector's resistance to dirt found in gas. Thanks to this solution, the injectors do not 'stick' even at low temperatures.  

 Tailor-made technology 
 
W031 STD injectors feature powerful solenoids with efficient cooling, dimensionally selected pistons and Teflon coatings in the gas dosage section.  
Appropriately selected characteristics of the return spring prevent the injectors from "sticking" at low temperatures. Additionally, the design ensures precise metering of fuel doses in all conditions. 

At the same time W031 STD are fully compatible with older variants of injectors and other STAG brand products.

 

Technical specification of both injectors 

AC W03 

AC W031 STD 

Working pressure [bar] 

0,95 ÷ 1,5 

0,95 ÷ 1,5 

Maximum working pressure [bar] 

4,5 

4,5 

Working temperature [˚C]

-20 ÷ +120 

-20 ÷ +120 

Opening time at pressure 1,2 bar [ms]

2 

2 

Closing time at 1,2 bar [ms] 

 

1 

1 

Weight with nozzles [g]

88 

                   74 

Resistance of coil [Ω]

1,9  

1,9 

Supply voltage [V] 

12 ÷ 16 

12 ÷ 16 

Maximum flow at pressure 1,2 bar [l/min]

125 

125 

Capacity range [HP/cylinder] (adjustable with nozzles)  

13,6 ÷ 45,8 

13,6 ÷ 45,8 

Efficiency range [kW/cylinder] (regulated by nozzles) 

10 ÷ 33,8 

10 ÷ 33,8 

Gas inlet - stub [mm]

Ø 6 / Ø 12 

Ø 6 / Ø 12 

Gas outlet - stub [mm]

Ø 6 

Ø 6 

Life time [km] 

 

 

 

- urban cycle 

100 tous. 

100 tous

- extra-urban cycle 

200 tous 

200 tous

Overall dimensions with spigot [mm]

 

 

length x width x height  

48 x 60 x 28,5 

48 x 60 x 26 

 

 

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