MB1.2-08 - TECVAL,S.L., 2023 all rights reserved.
1-Way 2-Valve Manifold
Working Pressures: 100 | 420 bar (1500 | 6000 PSI)

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 line outlet at 90º outflow. This purge line can be 1/2" or 1/4".


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


Inlet Female-Outlet Male-Purge Female (FxMxF) connections.  C 
Movable stem tip. F 
Grafoil packing for high temperatures.  G 
Inlet Male-Outlet Female-Purge Female (MxFxF) connections.  H 
High working pressure 420 bar (6000 PSI).  I 
Technical data
Max. Pressure Standard pressure: 100 bar (1500 PSI) High pressure: 420 bar (6000 PSI)
Temperatures -20ºC/400ºC (-4ºF/752ºF)
Dimensions 1/2"
A Open87
A Closed81
B Open87
B Closed81
Orifice Size 4
Order codes

* Dimensions in mm
NÂșPartAISI-316L  A4 Duplex  AD SuperDuplex  AS Special Alloys 
1 BodyAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
2 BonnetAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
3 PackingP.T.F.E.P.T.F.E.P.T.F.E.P.T.F.E.
4 GlandAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
5 NutAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
6 StemAISI-316L (1.4404)Duplex (1.4462)Superduplex (1.4410/ 1.4501)Special alloy
7 Bar handleAISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)AISI-316L (1.4404)
8 Set screwAISI-316 (1.4401)AISI-316 (1.4401)AISI-316 (1.4401)AISI-316 (1.4401)
Special alloys

Among the wide range of alloys existing, TECVAL has selected those considered by our customers as most suitable, which we stock to ensure a quick and effective supply. Whether you do not find the required alloy or need further information about our exotic alloys valves and fittings, please address your inquiry to our Technical Department.
AISI-316Ti (1.4571)  A6 
AISI-904L (1.4539)  A9 
254-SMO (1.4547)  AV 
Alloy 400 (2.4360)  MO 
Alloy 625 (2.4856)  IN 
Alloy 825 (2.4858)  CO 
Titanium Gr.2 (3.7034)  TI 
Hastelloy C-276 (2.4819)  HA 



Ordering information

References are formed by three parts:
 Valve Code    -Look for it in the order codes chart on the previous page.
 Option/s  -If required, add the code/s from the options section on the previous page (in alphabetical order).
 Material  -Look for the code on the materials chart.

An example of manifold with one option:

Manifold MB-1.2 1/2"NPT SuperDuplex with grafoil packing:
 3050   G   AS  . The reference to place the order is 3050GAS.






100% tested according to API STANDARD 598. Each manifold is tested to check the leakage in the seats and packings. Under request, the corresponding materials and test certificates can be delivered with the manifold.


All TECVAL manifold are supplied packed in individual polyethilene airtight bags. End screw connections are protected with polyethilene caps. Everything is 100% recyclable.


Adjustment of the packings may be necessary during the working life of the manifold. The operation consists of turning the nuts (3) clockwise.
Manifolds with long no-working period may have a harder initial operating torque.

C/Colom, 519 - Pol.Can Parellada - 08228-TERRASSA - Barcelona - SPAIN | Tel: +34 938 280 055 | email: tecval@tecval.es