Siemens VGD Series Technical Instructions Download | Manualshive

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Siemens

AG

Building

Technologies

Division

VGD

Series

Technical

Instructions

Document

No.

7631

VGDxx.xxxU

November

08,

2017

VGDxx.xxxU

Gas

Valves

for

use

with

SKPxx.xxxU

electro

‐

hydraulic

actuators

VGD20.xxxU

VGD40.xxxU

ISO

9001

and

14000

REGISTERED

FIRM

Only

with

series

SKPxx.xxxUx

actuators

Description

The

normally

closed

VGDxx.xxxU

series

of

modular

double

‐

body

gas

valves

combine

with

SKPxx.xxxU

series

electro

‐

hydraulic

actuators

to

provide

safety

shut

‐

off,

gas

pressure

regulation

and/or

air

‐

gas

ratio

control

for

commercial

or

industrial

gas

burners.

Table

1.

VGDxx.xxxU

model

numbers

Model

Numbers

Body

style

Connection

VGD20.253U

Double

NPT

thread

VGD20.323U

Double

NPT

thread

VGD20.403U

Double

NPT

thread

VGD20.503U

Double

NPT

thread

VGD40.065U

Double

NPT

thread

VGD40.080U

Double

NPT

thread

VGD40.100U

Double

ANSI

flange

VGD40.150U

Double

ANSI

flange

1
2
3
...
»

Summary of Contents for VGD Series

Page 1: ... xxxU series of modular double body gas valves combine with SKPxx xxxU series electro hydraulic actuators to provide safety shut off gas pressure regulation and or air gas ratio control for commercial or industrial gas burners Table 1 VGDxx xxxU model numbers Model Numbers Body style Connection VGD20 253U Double NPT thread VGD20 323U Double NPT thread VGD20 403U Double NPT thread VGD20 503U Double...

Page 2: ...tween the valves Each VGD20 xxxU double valve requires 2 threaded mounting flanges AGFxx xxU Each flange includes the necessary installation hardware bolts nuts and O ring Each mounting flange has a inch NPT pressure tap The flanges can be pre mounted onto the pipe and then bolted onto the VGD20 xxxU gas valve body This feature eliminates the use of pipe unions and permits the gas valve assembly t...

Page 3: ...ation with each of the following actuators SKP15 xxxU Safety shut off SKP25 xxxU Safety shut off and constant pressure regulation or zero governor SKP55 xxxU Safety shut off pressure regulation and differential pressure air gas ratio control SKP75 xxxU Safety shut off pressure regulation and adjustable air gas ratio control Since more than one function can be performed by a single valve fewer comp...

Page 4: ...tlet VGD20 253U 1 20 30 600 Two inch and one 1 inch port between valves Aluminum VGD20 323U 1 20 30 1200 Aluminum VGD20 403U 1 20 30 1 850 Aluminum VGD20 503U 2 20 30 2 300 Aluminum VGD40 065U 2 NPT 10 75 3 880 1 1 Aluminum VGD40 080U 3 NPT 10 75 5 370 1 1 Aluminum VGD40 100U 4 flanged 10 30 9 680 1 1 Aluminum VGD40 150U 6 flanged 10 30 17 490 1 1 Aluminum VGD20 xxxU double valves require 2 AGFxx ...

Page 5: ...te for VGD40 xxxU Each vent connection includes NPT test port see Mounting instruction M7631 3 74 319 0278 0 AGA40 6580U 1 NPT vent connection plate for VGD40 xxxU AGA40 0100U 2 NPT vent connection plate for VGD40 xxxU AGA40 0150U 2 NPT vent connection plate for VGD40 xxxU AGA61 Manual adjusting throttle attachment AGA61 permits VGDxx xxxU series valves to be used as adjustable limiting orifice va...

Page 6: ... differential VGD20 xxxU 2 psi 150 mbar VGD40 xxxU 4 psi 300 mbar Close off pressure See Table 2 Permissible gas temperature 14 F to 140 F 10 C to 60 C Permissible operating temperature 14 F to 140 F 10 C to 60 C Use Siemens gas valves are in accordance with UL429 The valve is used as Safety shutoff valve in connection with SKP15 xxxU Control valve with safety shutoff function in connection with S...

Page 7: ...ard integral stainless steel mesh filter 0 9 mm in the inlet to protect the downstream components against contamination All valves have NPT ports for pressure test connection A full size vent connection plate is available as an accessory for VGD40 xxxU valves See Table 2 and 3 for details on ports and vent connection plates AGF10 AGF10 7631z50us 0815 Figure 1 Sectional view of VGD20 xxxU VGD20 xxx...

Page 8: ...Operation continued 7631z53us 1215 Figure 2 Second view of VGD40 xxxU flange models VGD40 xxxU double valves consist of two valves in series Each valve has a double seat to achieve high flow see Figure 2 Closing springs Each double seat uses one pair of springs The spring forces act separately as closing forces on the individual valve seats ...

Page 9: ... Butane gas 2 00 3 cf h Air 1 00 4 m3 h Air 1 00 4 Sp Gr 1 000 700 500 400 300 200 100 70 50 40 30 20 10 7 5 4 3 2 1 0 7 0 5 0 4 0 3 0 2 1 000 700 500 400 300 200 100 70 50 40 30 20 10 7 5 4 3 2 1 0 7 0 5 0 4 W C mbar Pressure drop p 7631t06us 1215 VGD20 VGD40 Figure 3 Sizing double valves Assumptions 1 Pressure downstream of valve is atmospheric 2 Maximum gas temperature of 140 F 3 Valve in fully...

Page 10: ...AGF10 AGF10 1 4 NPT DØ 3 1 8 80 2 3 4 69 2 1 2 63 5 2 1 2 63 5 3 4 19 3 4 19 5 2 7 16 61 4 1 16 103 1 1 4 30 Table 4 VGD20 xxxU dimensions in inches mm with 2 flanges AGF10 xxU Valve model Nominal size D inch Length L inch mm Weight pounds Kg VGD20 xxxU 1 10 59 2 x 1 02 269 2 x 26 7 3 2 1 10 59 2 x 1 02 269 2 x 26 7 3 2 1 10 59 2 x 1 02 269 2 x 26 7 3 2 2 10 59 2 x 1 18 269 2 x 30 7 3 15 ...

Page 11: ...s Technical Instructions Document Number CC1N7631us November 08 2017 Siemens AG Building Technologies Division Page 11 Dimensions continued Dimensions in Inches mm VGD40 065U VGD40 080U a a G S F A 7631m21us 1215 a Base plate ...

Page 12: ...m V inch mm VGD40 065U 11 42 290 8 54 217 3 25 82 5 4 63 117 5 2 09 53 1 1 46 37 4 02 102 6 14 156 0 63 16 2 4 100 5 5 139 7 0 75 19 1 77 45 3 64 92 5 0 80 20 4 7 01 178 VGD40 080U 12 20 310 9 39 238 5 3 64 92 5 5 18 131 5 2 09 47 0 79 20 4 21 107 6 30 160 0 63 16 3 4 7 120 6 0 152 4 0 75 19 1 2 30 5 3 94 100 0 88 22 4 7 56 192 VGD40 100U 13 78 350 10 52 267 3 4 33 110 5 70 144 8 1 93 49 1 95 49 5...

Page 13: ...ptional to be ordered separately a and b are interchangeable 2 A 7631z49us 0815 Table 6 VGD40 xxxU dimensions in inches mm with mounted vent connecting plate Valve model N inch mm O inch mm P inch mm Q inch mm R inch mm Weight pounds kg VGD40 065U 7 13 181 4 06 103 5 34 135 6 3 02 76 59 1 46 37 1 6 7 VGD40 080U 7 28 185 4 13 105 5 49 139 5 3 17 80 5 0 79 20 19 8 VGD40 100U 8 54 210 4 76 121 6 26 1...

Page 14: ...PT AGA40 0150U 2 NPT Information in this publication is based on current specifications The company reserves the right to make changes in specifications and models as design improvements are introduced Other product or company names mentioned herein may be the trademarks of their respective owners Siemens AG Building Technologies Division Berliner Ring 23 76437 Rastatt GERMANY Your feedback is imp...

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