Manifolds and Instrumentation Valves: MB-1.2

1-Way 2-Valve Manifold
Working Pressures: 100 | 420 bar (1500 | 6000 PSI)

TECVAL dsc02857

TECVAL MB-1.2 manifolds are designed to work with fluid under high pressure and/or high temperature service. Their distribution diagram consists of two valves commanding the main line, where inlet and outlet are at 180º, and a discharge or testing line outlet at 90º outflow.


  • Metal-to-metal shut-off.
  • Easy packing external adjustment.
  • PTFE packing.
  • Two mounting holes.
  • 100% tested.


  • Movable stem tip.
  • Grafoil packing for high temperatures.
  • High working pressure 420 bar (6000 PSI).

Technical data

Maximum Pressure

Standard pressure: 100 bar (1500 PSI)

High pressure: 420 bar (6000 PSI)

Temperature Range

-20ºC/400ºC (-4ºF/752ºF)


Threaded NPT (ANSI B1.20.1)
Threaded BSP (ISO 7R-Rp)
Socket Weld SW (ANSI B16.11)

Dimensions 1/2"
A Open87
A Closed81
B Open87
B Closed81
Orifice Size 4

AISI-316L (1.4404)

Duplex (1.4462)

SuperDuplex (1.4410/1.4501)

Special Alloys (For detailed information consult attached data sheet)


PartAISI-316L Duplex SuperDuplex Special Alloys 
1 Set screwAISI-304 (1.4301)AISI-304 (1.4301)AISI-304 (1.4301)AISI-304 (1.4301)
2 Bar handleAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
3 NutAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
4 BonnetAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
5 GlandAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
6 PackingP.T.F.E.P.T.F.E.P.T.F.E.P.T.F.E.
7 StemAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
8 BodyAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
TECVAL mb-1.2
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