Double Block and Bleed Valves: SBB-03  

Single Block and Bleed Valve
Flange ASME B16.5 x Female NPT

TECVAL sbb-03-1-1x1-final-3


TECVAL Data sheet SBB-03

Data sheet

TECVAL SBB-03 process interface valves enables you to reduce drastically space and weight in the process of installations. It reduces the possibility of leaks and the maintenance. Their distribution diagram consist of one ball valves to block the line and one needle valve to bleed in 90º outflow.


  • Process interface in one compact ball/needle/ball valve assembly.
  • Pressure ratings in accordance with ASME B16.5.
  • Flange port compatible with ASME B16.5 RF.
  • Instrument port 1/2"NPT Female (ASME B1.20.1.).
  • Vent port 1/2"NPT Female (ASME B1.20.1.).
  • Temperature range -20ºC/200ºC (-4ºF/392ºF).
  • One-Piece forged body construction.
  • No ejectable ball and needle stem design.


  • RTJ Flange port.
  • Plug in vent port.
  • Instrument & Vent port 1/4"NPT Female.
  • O-ring seals in several materials.

Technical data

Maximum Pressure

In accordance with ASME B16.34.

  • CLASS 150
  • CLASS 300
  • CLASS 600
  • CLASS 900
  • CLASS 1500
Temperature Range

-20ºC/200ºC (-4ºF/392ºF)


Flanged port compatible with ASME B16.5 RF.

Flanged port compatible with ASME B16.5 RTJ.

Dimensions 1/2"3/4"1"11/2"2"
Orifice Size 121212-1512-15-2012-15-20
Flow Coefficient (Cv) 999-189-18-299-18-29

AISI-316L (1.4404)

SuperDuplex (1.4410/1.4501)

Special alloys (For detailed information consult attached data sheet)


PartAISI-316L SuperDuplex Special alloys 
1 Handle screwAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
2 Handle washerAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
3 HandleAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
4 Stop PinAISI-304 (1.4301)AISI-304 (1.4301)AISI-304 (1.4301)
5 StemAISI-630 (1.4542)Superduplex (1.4410/ 1.4501)Special alloy
6 Stem o-ringFPMFPMFPM
7 Stem bearingDelrinDelrinDelrin
8 BallAISI-630 (1.4542)Superduplex (1.4410/ 1.4501)Special alloy
9 Seats*Reinforced PTFE or PEEKReinforced PTFE or PEEKReinforced PTFE or PEEK
10 Inlet ConnectorAISI-316L (1.4404)Superduplex (1.4410/ 1.4501)Special alloy
11 Connector O-ringFPMFPMFPM
12 BodyAISI-316L (1.4404)Superduplex (1.4410/ 1.4501)Special alloy
13 Bar HandleAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
14 Set screwAISI-304 (1.4301)AISI-304 (1.4301)AISI-304 (1.4301)
15 StemAISI-316L (1.4404)Superduplex (1.4410/ 1.4501)Special alloy
16 NutAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
17 GlandAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
18 PackingP.T.F.E.P.T.F.E.P.T.F.E.
19 BonnetAISI-316L (1.4404)Superduplex (1.4410/ 1.4501)Special alloy
TECVAL sbb03-desp
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