SAF 2pp Mar 06 · 2015. 7. 1. · SAF–AdjustableFlowValve Bulletin4.6 August2009...
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SAF – Adjustable Flow Valve Bulletin 4.6 August 2009 The Adjustable Flow Valves, available in nine sizes from Rp 3 /8 to Rp3, are designed to control gas flows where flow rates need to be set or reset periodically. It is a much more flexible alternative to fixed orifice plate flow control, and provides easy, precise flow adjustment. The valve has been specially designed to incorporate a flow adjuster which is operated by an Allen type set screw arrangement, concealed under a screw lock cap. This hidden adjustment minimises the potential for tampering with preset flows. The valve is designed for flow control only and is not suitable for tight shut-off use. This rugged design valve has been developed for heavy industrial use and can be used on any commercially available gas. Refer to FNAC for applications with coke oven gas or air. The valve will operate with gas pressures up to 1.75 bar. Available in straight through or angled versions, the valve should be an integral part of any gas fired burner control system. Maintenance/Spares Under normal circumstances, the SAF valve will require no maintenance. There are no spares for this item. Installation / Operation It is important to install the SAF valve so that the port identified by an arrow is used as the outlet. It must be installed downstream of any other valves and as close to the burner gas inlet as possible allowing easy access for adjustment. Adjustment is made by removing the aluminium hexagon cap from the valve body, revealing the piston stem. For all valves an Allen-key is needed. An increase in flow rate is obtained by a counterclockwise adjustment of the piston stem. Replace hexagon cap and seal ring once desired flow has been set. SAF – Features ■ Straight through or angled mounting ■ For use with most gaseous fuels, and air ■ Simple accurate adjustment ■ Robust cast iron construction ■ Operating pressures up to 1.75 bar ■ 30% greater capacity with angled mounted unit Adjustable flow valve capacities in Nm 3 /h Pressure Drop for SG 0.64 (air = 1) in mbar Model No. 2.5 5 10 20 40 60 80 SAF 10 5.8 8.3 11.8 16.7 23.7 28.2 33 SAF 15 6 8.5 12 17 24 29 34 SAF 20 11 15.5 22 31 44 54 62 SAF 25 19 27 38 54 76 93 107 SAF 32 30 42 60 85 120 147 170 SAF 40 42 59 84 119 168 206 237 SAF 50 76 107 152 215 304 372 430 SAF 80 143 202 286 405 572 700 809 Note 1: The capacities for an angled mounting are 30% higher. Note 2: The listed capacities are the maximum flows when fully open. Note 3: Flows are based on 15° C ambient temperature. Capacities and Specifications Fives North American Combustion UK, Ltd. Fives North American Combustion UK, Ltd. Heath Mill Road, Wolverhampton WV5 8BD England Tel +44 (0) 1902 891200 Fax +44 (0) 1902 895552 email: [email protected] www.fivesgroup.com/fivesna
Transcript of SAF 2pp Mar 06 · 2015. 7. 1. · SAF–AdjustableFlowValve Bulletin4.6 August2009...
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SAF – Adjustable Flow ValveBulletin 4.6
August 2009
The Adjustable Flow Valves, available in nine sizesfrom Rp3/8 to Rp3, are designed to control gasflows where flow rates need to be set or resetperiodically. It is a much more flexible alternative tofixed orifice plate flow control, and provides easy,precise flow adjustment.
The valve has been specially designed toincorporate a flow adjuster which is operated byan Allen type set screw arrangement, concealedunder a screw lock cap. This hidden adjustmentminimises the potential for tampering with presetflows. The valve is designed for flow control onlyand is not suitable for tight shut-off use. This ruggeddesign valve has been developed for heavyindustrial use and can be used on any commerciallyavailable gas. Refer to FNAC for applications withcoke oven gas or air. The valve will operate with gaspressures up to 1.75 bar. Available in straightthrough or angled versions, the valve should be an
integral part of any gas fired burner control system.
Maintenance/SparesUnder normal circumstances, the SAF valve willrequire no maintenance. There are no spares forthis item.
Installation / OperationIt is important to install the SAF valve so that theport identified by an arrow is used as the outlet.It must be installed downstream of any other valvesand as close to the burner gas inlet as possibleallowing easy access for adjustment.
Adjustment is made by removing the aluminiumhexagon cap from the valve body, revealing thepiston stem. For all valves an Allen-key is needed.An increase in flow rate is obtained by acounterclockwise adjustment of the piston stem.Replace hexagon cap and seal ring once desiredflow has been set.
SAF – Features
� Straight through or angled mounting
� For use with most gaseous fuels, and air
� Simple accurate adjustment
� Robust cast iron construction
� Operating pressures up to 1.75 bar
� 30% greater capacity with angledmounted unit
Adjustable flow valve capacities in Nm3/hPressure Drop for SG 0.64 (air = 1) in mbar
Model No. 2.5 5 10 20 40 60 80SAF 10 5.8 8.3 11.8 16.7 23.7 28.2 33SAF 15 6 8.5 12 17 24 29 34SAF 20 11 15.5 22 31 44 54 62SAF 25 19 27 38 54 76 93 107SAF 32 30 42 60 85 120 147 170SAF 40 42 59 84 119 168 206 237SAF 50 76 107 152 215 304 372 430SAF 80 143 202 286 405 572 700 809
Note 1: The capacities for an angled mounting are 30% higher.Note 2: The listed capacities are the maximum flows when fully open.Note 3: Flows are based on 15° C ambient temperature.
Capacities and Specifications
Fives North American Combustion UK, Ltd.
Fives North American Combustion UK, Ltd.Heath Mill Road, Wolverhampton WV5 8BD EnglandTel +44 (0) 1902 891200 Fax +44 (0) 1902 895552email: [email protected] www.fivesgroup.com/fivesna
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Page 2Bulletin 4.6
Flow capacity correction factors for other specific gravities
Note 1: A = Air P = Propane gas B = Butane gas New flow = factor x listed flow
SP.GR 0.45 0.56 0.70 0.80 1A 1.52P 2.07BFactor 1.19 1.07 0.96 0.89 0.8 0.65 0.56
Dimensions
ModelNo.
SAF 10SAF 15SAF 20SAF 25SAF 32SAF 40SAF 50SAF 80
PartNo.
3.12.0633.12.0013.12.0023.12.0033.12.0043.12.0053.12.0063.12.008
B43434354626775124
C868686108124133149248
D686868738695119134
E3838384354596597
F54545459738395149
G6767676775758989
Weightkg0.960.960.981.222.032.383.9210.65
ARp3/8Rp1/2Rp3/4Rp1Rp11/4Rp11/2Rp2Rp3
Dimensions
Fives North American Combustion UK, Ltd.Heath Mill Road, Wolverhampton WV5 8BD England Tel +44 (0) 1902 891200 Fax +44 (0) 1902 895552
FNAC 8/2009 SAF
WARNING: The data outlined is for information only and does not form part of any contract. Our policy is one of continuous improvementand we therefore reserve the right to modify specifications or dimensions without prior warning. Situations dangerous to personnel and propertycan develop from incorrect installation and operation of combustion equipment. Fives North American Combustion UK, Ltd urges compliancewith International, National and Local Safety Standards and that installation is carried out by properly qualified personnel.
