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Siemens Building Technologies, Inc.

VG Series

Technical Instructions

Document No. 155-512P25

VG…

August 1, 2012

VGG… and VGD… Gas Valves

for use with SKP… Electro-hydraulic Actuators

VGG… VGD20… VGD40…

Only when assembled to Series SKP… actuators

Description

The normally closed VG… Series of modular single and double-body gas valves

combined with SKP… Series electro-hydraulic actuators provide safety shut-off, gas

pressure regulation and air/gas ratio control for commercial and industrial gas burners.

Table 1. Legend.

Model Numbers Body Style Connection

VGG… Single NPT Threaded

VGD… Double

NPT Threaded or

ANSI Flanged

Features

All Models

• UL listed, FM approved, CSA certified, IRI approvable, ISO 9001 and 14000 certified.

European, Australian and Japanese approved versions available.

• Stainless steel mesh inlet filter protects the valve seat(s) as well as downstream

components.

• 1/4-inch NPT pressure taps on the inlet and outlet. (See Table 2 for details).

• Dual stem guides ensure precise disc alignment and tight shut-off.

VGG… Models

• Contoured valve disc provides smooth release of gas and stable regulating control.

• 3/4-inch NPT port for pilot or vent line connection on 2-1/2 and 3-inch VGG…valves.

Summary of content (12 pages)

PAGE 1
Technical Instructions Document No. 155-512P25 VG… August 1, 2012 VG Series VGG… and VGD… Gas Valves for use with SKP… Electro-hydraulic Actuators VGG… VGD20… VGD40… Only when assembled to Series SKP… actuators Description The normally closed VG… Series of modular single and double-body gas valves combined with SKP… Series electro-hydraulic actuators provide safety shut-off, gas pressure regulation and air/gas ratio control for commercial and industrial gas burners. Table 1. Legend.
PAGE 2
Technical Instructions Document Number 155-512P25 August 1, 2012 VGD20… Models VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… • Compact VGD20… double-valve bodies consist of two safety shut-off valves in series. The first (inlet) valve has a flat valve disc applicable for safety shut-off function only. The second (outlet) valve has a contoured valve disc for use with pressure regulating actuators (SKP2…, SKP5…, SKP7…). • A 1-inch NPT vent connection between the valves.
PAGE 3
VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… Accessories Technical Instructions Document Number 155-512P25 August 1, 2012 Manual adjusting throttle attachment AGA61 permits VG… series valves to be used as adjustable limiting orifice valves. Once adjusted, the AGA61 has a provision to be sealed from tampering (See Table 3). Adapter plate AGA60 permits VG… series valves to be used for modulating flow control when fitted with an SQX… series modulating actuator (See Table 3).
PAGE 4
Technical Instructions Document Number 155-512P25 August 1, 2012 VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… Table 3. Accessories. Part Number Description Notes AGA40.6580U Vent connection plate with 1-1/4" NPT vent connection and 1/4" NPT test port AGA40.0100U Vent connection plate with 2" NPT vent connection and 1/4" NPT test port AGA40.0150U Vent connection plate with 2-1/2" NPT vent connection and 1/4" NPT test port Order separately. For use with VGD40… only.
PAGE 5
VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… Technical Instructions Document Number 155-512P25 August 1, 2012 Operation, Continued Figure 1. VGG… Models. Figure 2. VGD20… Models. Figure 3. VGD40… Models. Siemens Building Technologies, Inc.
PAGE 6
Technical Instructions Document Number 155-512P25 September 14, 2005 VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… Gas Flow Charts VGG " W.C. mbar 700 21 3 " /2 " 2" 11/ 2" 1" 3/ 1/ 2" 4" 1,000 500 400 300 200 100 70 50 40 30 20 10 7 5 4 3 2 1 0.7 0.5 0.4 0.3 0.
PAGE 7
VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… Technical Instructions Document Number 155-512P25 September 14, 2005 Gas Flow Charts, Continued VGG " W.C. mbar 700 21 3 " /2 " 2" 11/ 2" 1" 3/ 1/ 2" 4" 1,000 500 400 300 200 100 70 50 40 30 20 10 7 5 4 3 2 1 0.7 0.5 0.4 0.3 0.
PAGE 8
Technical Instructions Document Number 155-512P25 September 14, 2005 VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… Gas Flow Charts, Continued " W.C.
PAGE 9
VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… Technical Instructions Document Number 155-512P25 August 1, 2012 Dimensions Table 4. VGG… Models.
PAGE 10
Technical Instructions Document Number 155-512P25 August 1, 2012 VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… Dimensions, Continued Table 5. VGD20… Models. Page 10 Valve Model Nominal Size D Inches L Inches (mm) Weight Pounds (kg) VGD20… 1-1/2 12-3/16 (310) 7 (3.2) 2 12-5/8 (320) 6 (3.15) Siemens Building Technologies, Inc.
PAGE 11
VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… Technical Instructions Document Number 155-512P25 August 1, 2012 Dimensions, Continued Dimensions in Inches (mm) Table 6. VGD40… Models. Valve Model A B C D E F G H I VGD40.065U 12.09 (307) 12.87 (327) 13.78 (350) 18.90 (480) 7.00 (203) 8.94 (227) 10.50 (267) 13.29 (338) 3.25 (83) 3.64 (93) 4.33 (110) 5.71 (145) 4.63 (118) 5.18 (132) 5.70 (145) 7.40 (188) 2.09 (53) 1.85 (47) 1.93 (49) 2.09 (53) 1.46 (37) 0.79 (20) 1.
PAGE 12
Technical Instructions Document Number 155-512P25 August 1, 2012 VG Series Gas Valves for Use with Electro-hydraulic Actuators SKP… Dimensions, Continued Table 7. VGD40… Dimensions in Inches (Millimeters). Valve Model VGD40.065U VGD40.080U VGD40.100U VGD40.150U N O P Q R Weight Pounds (kg) 7.13 (181) 7.28 (185) 8.54 (217) 11.30 (287) 4.06 (103) 4.13 (105) 4.76 (121) 6.14 (156) 5.34 (136) 5.49 (140) 6.26 (159) 7.80 (198) 3.02 (77) 3.17 (81) 3.94 (100) 5.47 (139) 1.46 (37) 0.79 (20) 1.95 (50) 2.