[2- and 3-way vacuum solenoid valves]

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Griffin Francis
5 years ago
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[2- and 3-way 07.. 16 = 3 vie 07.. 20 = 2 vie Developed specifically for, they are direct-acting, normally closed. The two-way valves have considerably large orifices compared to their sizes.

Standard coil, completely plasticized in synthetic resin, tight execution, insulation class F (up to 155 C) electrical connections by means of a plug with clamping screws. Max. input: 17 V.A. with A.

1 [2- and 3-way = 3 vie = 2 vie Developed specifically for, they are direct-acting, normally closed. The two-way valves have considerably large orifices compared to their sizes. The three-way ones, although they have different passage orifices, they all have a fixed outlet, through the 3 mm. tube. Frequency of operation is approx. 700 c/minute. Standard coil, completely plasticized in synthetic resin, tight execution, insulation class F (up to 155 C) electrical connections by means of a plug with clamping screws. Max. input: 17 V.A. with A.C. and 17 Watt with D.C. A Ø B C D E F G H I L Ø orifice Ø / M / M / M / M / M / M6 4.09

[2-way A B C D E F R Ø Ø orifice DDN 14 75 127 35 110 30 63 1/2" 14 DDN 25 90 142 50 128 43 82 1" 25 Of a new design, with small dimensions, high volumetric efficiency and high response speed at any

This valves series is PATENTED. The DDN valves are a two position, direct acting normally closed valve. The body is made of brass with Viton seals. Working pressure: from 0 to 1,5 bar absolute.

2 [2-way A B C D E F R Ø Ø orifice DDN /2" 14 DDN " 25 Of a new design, with small dimensions, high volumetric efficiency and high response speed at any degree, this new series of valves is the result of a very careful choice of materials, advanced construction techniques coupled with the in-depth knowledge of our technicians. This valves series is PATENTED. The DDN valves are a two position, direct acting normally closed valve. The body is made of brass with Viton seals. Working pressure: from 0 to 1,5 bar absolute. The electric coil is standard, manuafactured in a synthetic resin with an insulation class F (up to 155 C), electrical connection is by means of a plug with clamping screws. voltage: ± 10%. Max. input: 17 V.A. in A.C. and 10 Watt in D.C. (only DDN 14 because DDN 25 cannot operate in D.C.). The valves work better in an inverted position. The DDN valves are particularly suitable for degassing fittings, autoclaves, thermo-welders and in all applications where suction has to be controlled separately from the inlet of air into circuit. 4.10

As this valve has no frictions and internal dynamic stresses, the result is a high response speed and a guarantee of long lasting operation. Working pressure: from 0 to 3 bar abs.

3 [3-way The three-way valves of this series are with two positions, with pneumatically servo controlled conical valves, normally closed or open. The body is in anticorodal aluminium, the valves and the membrane of the servo control are in Vulkollan. As this valve has no frictions and internal dynamic stresses, the result is a high response speed and a guarantee of long lasting operation. Working pressure: from 0 to 3 bar abs. Pressure at the servo control: from 4 to 8 bar (g). The electric coil is standard, completely plasticized in synthetic resin, tight execution, insulation class F (up to 155 C) electrical connections by means of a plug with clamping screws. Max. input: 17 V.A. with A.C. and 10 Watt with D.C. Three-way valves are normally used for interception on feeders and cup stackers, robots, sheet feeders, sack openers and in all those cases where a quick response is needed between the suction and the air inlet into the circuit. A Ø B C D E F G H I L M N O P R S Ø orifice Ø Ø /4" /8" /8" /8" /2" /8" /4" /8" " /8" "1/ /8"

[3-way double A Ø B C D E F G H I L M N O R P Q Ø Orif. Ø Ø 07 01 50 1/4 8.5 50 35 40 5.0 5.5 30 75 10 32.5 12.5 35.0 21 1/8 65 70 07 02 50 3/8 11.5 50 35 40 5.0 5.5 30 75 10 32.5 12.5 35.0 21 1/8 65 70 07 03 50 1/2 15.

0 130 90 100 15.0 8.5 84 175 35 84.0 39.0 90.0 40 1/8 55 130 These valves have the same function as the three-way servo controlled ones, previously described. They have the same structure as well.

4 [3-way double A Ø B C D E F G H I L M N O R P Q Ø Orif. Ø Ø / / / / / / / / / / / These valves have the same function as the three-way servo controlled ones, previously described. They have the same structure as well. The feature that differentiates them are the two s which, with a simple electrical impulse, exchange the valves position and keep them in this position until when there is a new impulse, and this also in absence of compressed air at the servo control and of electric current too. Due to this feature, their use is particularly advisable in all those cases where it is required the maximum guarantee of connection to the source, also in absence of electric or pneumatic feed. Working pressure: from 0 to 3 bar abs. Pressure at the servo control: from 4 to 8 bar (g). The electric coils are standard, completely plasticized in synthetic resin, tight execution, insulation class F (up to 155 C) electrical connections by means of a plug with clamping screws. Max. input: 7,5 17 V.A. with A.C. and 5 10 Watt with D.C. Coils may be rotated through

[3-way A Ø B C D E F G H I L M N O P R S Ø orifice Ø 07 03 40 1/2" 15 76 75 40 35 6.5 90 152 33.0 58 53.0 44.0 10 6 64 62 07 04 40 3/4" 19 76 75 40 35 6.5 90 152 33.0 58 53.0 44.0 10 6 64 62 07 05 40 1" 25 89 79 40 39 6.

0 17 10 94 65 The three-way valves of this series are direct-acting, with two positions, with servo controlled conical valves and normally closed. Upon request they can be supplied normally open.

5 [3-way A Ø B C D E F G H I L M N O P R S Ø orifice Ø /2" /4" " "1/ The three-way valves of this series are direct-acting, with two positions, with servo controlled conical valves and normally closed. Upon request they can be supplied normally open. The body is in anodized aluminium, the valves are in silicone and the servo control membrane is in nitrile rubber. The working principle of these valves is based on the differential of pressure existing between the pump and the pressure of the sucked air. Conveying this differential pressure to the servo control, the valves can be controlled without the help of compressed air or of springs. In consideration of the above mentioned working principle it is not advisable to use these valves on plants having a low degree (lower than 100 mm Hg or 880 mbar abs). As this valve has no frictions and internal dynamic stresses, the result is a high response speed and a guarantee of long lasting operation. The electric coil is standard, completely plasticized in synthetic resin, tight execution, insulation class F (up to 155 C) electrical connections by means of a plug with clamping screws. Max. input: 17 V.A. with A.C. and 10 Watt with D.C. The valves of this series, besides being used for nearly all those cases previously described in the series , can also be used on the plants that have no compressed air available. The valve choice has always to be made in consideration of the capacity and therefore of the suction connection of the pump. 4.13

SIT 849 SIGMA LH M U LT I F U N C T I O N A L C O N T R O L F O R G A S B U R N I N G A P P L I A N C E. w w w. s i t g r o u p.

SIT 849 SIGMA LH M U LT I F U N C T I O N A L C O N T R O L F O R G A S B U R N I N G A P P L I A N C E. w w w. s i t g r o u p. SIT 89 SIGMA LH M U LT I F U N C T I O N A L C O N T R O L F O R G A S B U R N I N G A P P L I A N C E 9.955.19 Subject to change without notice Application Domestic gas appliances: central heating boilers,