High performance 3 way full bore 316 Stainless Steel ball valve with ANSI 150 flanged connections and a double acting pneumatic actuator. Self adjusting stem packing assembly with belleville spring for temperature fluctuations and vibration. Pre drilled metric ISO5211 direct mounting pad to minimise any thermal transfer from valve to actuator. Reinforced PTFE seats for temperatures up to 180°C. Anodized aluminium rack and pinion actuator with visual indicator, namur interface and stop adjustments. Typical applications include water treatment, chemical, marine, petrochemical and general industry.

Model DN (mm) Actuator Media Pressure Media Temperature Actuator Pressure
BLS3L4FA-DA-RT 15 DA50 Vacuum (29" Hg) to 20 Bar (10 Bar Steam) -20°C to 180°C 6 to 8 BAR
BLS3L5FA-DA-RT 20 DA63 Vacuum (29" Hg) to 20 Bar (10 Bar Steam) -20°C to 180°C 6 to 8 BAR
BLS3L6FA-DA-RT 25 DA63 Vacuum (29" Hg) to 20 Bar (10 Bar Steam) -20°C to 180°C 6 to 8 BAR
BLS3L7FA-DA-RT 32 DA75 Vacuum (29" Hg) to 20 Bar (10 Bar Steam) -20°C to 180°C 6 to 8 BAR
BLS3L8FA-DA-RT 40 DA88 Vacuum (29" Hg) to 20 Bar (10 Bar Steam) -20°C to 180°C 6 to 8 BAR
BLS3L9FA-DA-RT 50 DA100 Vacuum (29" Hg) to 20 Bar (10 Bar Steam) -20°C to 180°C 6 to 8 BAR
BLS3L10FA-DA-RT 65 DA115 Vacuum (29" Hg) to 20 Bar (10 Bar Steam) -20°C to 180°C 6 to 8 BAR
BLS3L11FA-DA-RT 80 DA125 Vacuum (29" Hg) to 20 Bar (10 Bar Steam) -20°C to 180°C 6 to 8 BAR
BLS3L12FA-DA-RT 100 DA145 Vacuum (29" Hg) to 20 Bar (10 Bar Steam) -20°C to 180°C 6 to 8 BAR
L Port T Port

Double Acting 3 way stainless steel flanged ball valve

DN Actuator A B C D E F G H L T
15 DA50 138 90 60.5 89 70 2 35 134.5 152 11
20 DA63 162 100 70 98 80 2 43 150 167 11
25 DA63 162 100 79.5 108 80 2 51 155 180 12
32 DA75 208 117 89 117 97 2 64 175.5 190 13
40 DA88 245 136 98.5 127 116 2 73 180.5 212 15
50 DA100 266 142 120.5 152 122 2 92 212 230 16
65 DA115 310 172 139.5 178 142 2 105 231 290 18
80 DA125 340 184 152.5 190 154 2 127 267.25 310 19
100 DA145 401 209 190.5 229 179 2 157 298.5 350 24

All dimensions in mm unless shown otherwise. 

Double Acting 3 way flanged stainless steel ball valve

Number Item Material
1 Flanged End CF8M
2 Seat Reinforced PTFE
3 Ball ASTM A182 316
4 Body ASTM A351 CF8M
5 Shaft ASTM A276 316
6 Thrust Washer SS201
7 Chevron Packing PTFE
8 Shaft Seal Oring Viton
9 Belleville Washers SS201
10 Retaining Nut SS304
13 Shaft Seal Viton
14 Cap Gasket PTFE
15 Pneumatic Actuator Anodized Aluminium
16 Stops ASTM A276 316
17 Indicator Thermoplastic
18 Bonnet ASTM A351 CF8M

Size 15mm to 100mm
Body 316 Stainless Steel
Seat RPTFE
Pressure 20 BAR @ ambient
Temperature -10°C to 180°C
Actuation Double Acting Pneumatic
Port  L or T port

Product History