SKU: BLSN

NPT 316 Stainless Steel Ball Valve

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316 Stainless Steel 3 Piece Ball valve with full bore and NPT threaded end connections. This high performance valve is suitable for many applications such as the water, chemical, petrochemical, marine and general industries. With an ISO pad and Lockable Lever, this makes this valve a versitile fit for many applications, whether by Manual Lever or Actuator / Gearbox.

  • NPT Threaded End Connections, Length to DIN3202-M3
  • Reinforced PTFE Seats suitable for a wide range of media and temperatures up to 180°C (Refer to Pressure Temperature Curve and Material Data sheets for Chemical Compatibility). 50% Stainless Steel & 50% PTFE seats available as an option for higher temperature service
  • Self Adjusting Stem Packing by the use of Belleville washers which assist with temperature fluctuations and vibrations.
  • ISO5211 Mouting pad with holes pre drilled to Metric sizes to support a range of actuators
  • Vented design on the Neck of the Valve allows for a reduction in thermal transfer from the valve to the actuator
Model Size (BSP) Size (mm) Media Pressure Media Temperature Torque (NM)
BLS2N-L-RT 1/4 8 Vacuum (29" Hg) to 63 BAR (10 BAR Steam) -20°C to 180°C 5
BLS3N-L-RT 3/8 10 Vacuum (29" Hg) to 63 BAR (10 BAR Steam) -20°C to 180°C 5
BLS4N-L-RT 1/2 15 Vacuum (29" Hg) to 63 BAR (10 BAR Steam) -20°C to 180°C 6
BLS5N-L-RT 3/4 20 Vacuum (29" Hg) to 63 BAR (10 BAR Steam) -20°C to 180°C 10
BLS6N-L-RT 1 25 Vacuum (29" Hg) to 63 BAR (10 BAR Steam) -20°C to 180°C 16
BLS7N-L-RT 1 ¼ 32 Vacuum (29" Hg) to 63 BAR (10 BAR Steam) -20°C to 180°C 24
BLS8N-L-RT 1 ½ 40 Vacuum (29" Hg) to 63 BAR (10 BAR Steam) -20°C to 180°C 32
BLS9N-L-RT 2 50 Vacuum (29" Hg) to 63 BAR (10 BAR Steam) -20°C to 180°C 50

Stainless Steel NPT Ball Valve Pressure vs Temperature 

NPT Stainless Steel Ball Valve

Model Size (NPT) DN L W □E H H1 H2 ISO 5211 Weight (kg)
BLS2N-L-RT 1/4 8 60 120 9 63 32 7 F03/F04 0.58
BLS3N-L-RT 3/8 10 60 120 9 63 32 7 F03/F04 0.58
BLS4N-L-RT 1/2 15 75 120 9 70 40 7 F03/F04 0.62
BLS5N-L-RT 3/4 20 80 120 9 80 50 9 F03/F04 0.8
BLS6N-L-RT 1 25 90 135 11 90 57 11 F04/F05 1.15
BLS7N-L-RT 1 ¼ 32 110 150 11 95 61 11 F04/F05 2.5
BLS8N-L-RT 1 ½ 40 120 185 14 105 76 14 F05/F07 2.98
BLS9N-L-RT 2 50 140 185 14 112 84 14 F05/F07 3.3

NPT Stainless Steel 3 piece ball valve

No. Part Material
1 Bonnet ASTM A351 CF8M
2 Seat PTFE +15% Glass Filler
3 Ball ASTM A182 316
4 Gasket PTFE
5 Stem Gasket PTFE
6 O-Ring VITON
7 Body ASTM A351 CF8M
8 Packing PTFE
9 Stem ASTM A182 316
10 Packing Gland ASTM A276 304
11 Butterfly Spring PH15-7Mo
12 Stem Nut ASTM A276 201
No. Part Material
13 Packing Gland ASTM A276 304
14 Handle ASTM A276 201
15 Nut ASTM A276 201
16 Stop Pin ASTM A276 201
17 Handle Lock ASTM A276 201
18 Handle Sleeve Plastic
19 Thrust Washer ASTM A276 201
20 Anti-static Device ASTM A276 304
21 Bolt ASTM A193-B8
22 Spring Washer ASTM A193-B8
23 Nut ASTM A194-B8M

 

Size 1/4" to 2" NPT
Body 316 Stainless Steel 3 piece
Seat Reinforced PTFE
Pressure 63 BAR
Temperature -20°C to 180°C
Actuation Lockable Lever

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