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HONEYWELL

HONEYWELL

HONEYWELL

HONEYWELL

 

  

 

CLASS “A” COMBINATION VALVES 

VQ400M-Series 

EN2R9081-C 

October 2009 

13 

OPTION INSTALLATION 

Installation can be done by the OEM or by qualified 

personnel in field. 

WARNING

 

If additional hardware needs to be installed on field, 

then installation personnel should take care, that 

the main gas flow to the appliance has been 

completely stopped by an upstream manual shut-

off valve prior to the installation. 

Installation 

1.  Open the required gas flow channels by 

removing the suitable plugs from the valve 
body. 

2.  Take care that dirt can not enter the gas 

valve during handling 

3.  Install the screw-in additional hardware as 

required (vent, by-pass, external pilot 
valve)  

4.  Please refer to the relevant instruction 

sheet 

CONSTRUCTION AND WORKING 
PRINCIPLES 

The VQ400M combination gas valves are 2 x class 

“A” fail safe shut-off valves. The valve is opened by 

energizing the direct ON / OFF operator. The direct 

ON / OFF operator consists of a coil and stop 

sleeve assembly. Inside the top sleeve assembly a 

plunger is placed which is able to move up and 

down and thus opening or closing the valve. The 

plunger is gliding on two anti-friction bearings. Flow 

regulation is done by adjustable plunger stroke. A 

strainer made out of steel AISI 303 is incorporated 

between inlet flange and main body. Valve closing 

springs are made out of steel AISI 302. Seals and 

gaskets are manufactured out of hydrocarbon 

resistant NBR according to DIN 3535 and EN291. 

SECTION A-A

 

Figure 14 Schematic drawing of VQ400M.

Moveable valve to 

open / close flow 

channel 

Automatic closing mechanism 

when power is switched off 

Slow opening 

device 

Electro-magnetic 

actuator 

Flow direction 

Содержание VQ400M Series

Страница 1: ... gas power burners atmospheric gas boilers melting furnaces incinerators and other gas consuming appliances The VQ400M offers flexibility to mount accessories like valve position indicator pressure indication switches vent valves or by pass valves at several positions at the gas valve whenever wherever These combination valves are available in two body sizes Small model o VQ420 o VQ425 Large model...

Страница 2: ... WARNING 13 CONSTRUCTION AND WORKING PRINCIPLES 13 ORDERING INFORMATION 14 NOTE 14 Replacement of parts 15 Warning 15 Recommended accessories 15 APPROVALS 17 Declaration of Conformity 17 FEATURES Class A safety combination valve for control of gaseous fluids in gas consuming appliances in accordance with international standards Main body with two gas valves with single seat Possibility of installi...

Страница 3: ...evice with flow regulation and adjustable opening Optionally the second valve V2 can be ordered fast open without any regulation device SPECIFICATION The specifications described in this chapter are related to the main gas valves Models Models can be ordered according order specification numbering which is shown in Figure 15 For an overview of all known combinations see surveys 50040300 50040301 A...

Страница 4: ...onnections As shown in the figure below VQ400M is provided with plugs and flanges giving flexibility to customize this combination valve with Honeywell accessories Figure 3 Interfaces for possible accessories Torsion and bending stress Pipe connections meet group 2 according to EN161 requirements Supply voltages VQ400 M series can be ordered for line voltage 230 Vac 50 60 Hz 115 Vac 50 60 Hz 120 V...

Страница 5: ...ording class F Enclosure IP54 in combination with PG11 connection IP65 in combination with DIN plug connection Body material Aluminum alloy die cast body Closing spring AISI 302 steel Valve plunger Chrome plated Fe 360B steel sliding on anti friction bearing Seals and gaskets Hydrocarbon resistant NBR rubber type Power consumption Honeywell provides VQ400M with coils that suit demands of specified...

Страница 6: ...re nominal voltage 20 C 2 5 mbar pressure drop no step pressure Due to the influence of ambient temperature 15 60 C the adjusted opening time of 6 seconds measured at 80 of adjusted flow rate can vary 4 seconds Closing time Less than 1 second for both valves Maximum working frequency VQ400M is equipped for maximal working frequency of one cycle per minute Duty cycle Coils are suitable for permanen...

Страница 7: ...M is shown in table 5 Table 5 Overview of reference capacity in m3 h air at p 2 5 mbar Gas valve Flange size Pipe size Flow capacity VQ420MA DN15 VQ420MA DN20 8 VQ425MA DN25 1 11 VQ440MA DN32 1 25 VQ440MA DN40 1 31 VQ450MA DN50 2 40 In figure 4 a broader range of specified capacity for VQ400M is shown in curves Figure 4 Capacity curve for VQ400M Series class A combination valves ...

Страница 8: ...ve points in the direction of the gas flow gas pressure helps to close the valve Maintenance and service The designed lifetime of this product is 10 years based on date code according to a the standard EN 126 b the table on designed lifetime as stated on the Afecor website http www afecor org We cannot assume that the product can be safely used beyond the mentioned designed lifetime This lifetime ...

Страница 9: ...lity gas leak detection spray Start the appliance and check for bubbles If a leak is found in a pipe connection remake the joint A gasket leak can usually be stopped by tightening the mounting screws otherwise replace the gas valve Electrical connection WARNING Switch off power supply before making electrical connections All wiring must comply with local codes ordinances and regulations Use lead w...

Страница 10: ...and gasket B Take off one from two plugs Pg11 Prepare cables Remove plastic outside insulation for about 50 75 mm Strip wires from plastic insulation for about 5 7mm Place cable support screw C steel ring D rubber ring E and guide wires through the hole in the cover to the connection block F Connect wires between plates by tightening the particular screws F1 F2 F3 Left Phase Middle Earth connectio...

Страница 11: ... Adjusting flow rate Flow rate adjustment see Fig 9 1 Remove the cap screw from top of the coil 2 Place a socket head wrench into the adjustment nut 3 Turn wrench counter clockwise to increase or clockwise to decrease flow rate 4 Replace cap screw 2nd main valve slow opening The following characteristics can be adjusted flow rate step pressure opening speed Figure 10 Characterized opening IMPORTAN...

Страница 12: ...ssure Opening speed adjustment 1 Remove the cap from top of the coil by loosening both screws 2 Place screw driver in the slot of adjustment screw which is of center line 3 Turn screw driver counter clockwise to increase the opening speed and therefore the time till full opening will decrease 4 Turn screw driver clockwise to decrease the opening speed and therefore the time till full opening will ...

Страница 13: ...tion sheet CONSTRUCTION AND WORKING PRINCIPLES The VQ400M combination gas valves are 2 x class A fail safe shut off valves The valve is opened by energizing the direct ON OFF operator The direct ON OFF operator consists of a coil and stop sleeve assembly Inside the top sleeve assembly a plunger is placed which is able to move up and down and thus opening or closing the valve The plunger is gliding...

Страница 14: ...ification number VQ4xxMAxxxx Valve size and flange connection 20 DN20 3 4 25 DN25 1 40 DN40 1 1 2 50 DN50 2 Characteristic second valve A Fast opening no throttle B Fast opening throttle C Slow opening Specification number Figure 15 Ordering information VQ400M Series combination valves NOTE Accessories as flanges need to be ordered separately ...

Страница 15: ...ry operation after fitting accessories Table 6 Rectifier boards for VQ400M series Gas valve Rectifier board 115V 120V Rectifier board 230V VQ420MA CS020020 CS020070 VQ425MA CS020020 CS020070 VQ440MA CS020020 CS020071 VQ450MA CS020020 CS020071 RECOMMENDED ACCESSORIES There are two different series of flange kits available The first series of flange kits consist of 1 flange with sealing plug 1 O rin...

Страница 16: ...xx See Honeywell documentation VP420Xxxxx KIT for further instructions on external pilot valves Table 11 Overview of recommended vent valves Gas valve Vent valve VQ400M VV420Xxxxx See Honeywell documentation VV420Xxxx KIT for further instructions on vent valves Table 12 Overview of recommended closed position indication switches CPI Gas valve Closed position indicator VQ420M MS062001 VQ425M MS0625...

Страница 17: ...shut off valves EN 126 Multifunctional controls Declaration of Conformity Honeywell Technologies Sàrl Rolle Switzerland declares under it s sole responsibility that the VQ Modular Valve product family to which this statement relates is in conformity with the essential requirements of the Gas Appliance Directive 90 396 EEC based on EN 126 2004 in conformity with the essential requirements of the Lo...

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