Technical Data; Model Identification; Commissioning The Device; Operations Prior To Installation - Madas MVS/1 Manual De Instrucciones

2.0 - TECHNICAL DATA

• Use
• Ambient temperature
• Maximum operating pressure
• Mechanical strength
• Rp Threaded connections
• Flanged connections that can be coupled
to PN 16 flanges
• NPT threaded or ANSI 150 flanged connections : on request
• In compliance with
* DN 25 with swivel flanges.

2.1 - MODEL IDENTIFICATION

MVS/1
: Relief valve
MVSP/1 : Compact Relief valve

3.0 - COMMISSIONING THE DEVICE

3.1 - OPERATIONS PRIOR TO INSTALLATION

• It is necessary to close the gas upstream of the valve prior to installation;
• Make sure that the line pressure DOES NOT EXCEED the maximum pressure declared on the product label;
• Any protective caps (if any) must be removed prior to installation;
• Valve pipes and insides must be clear of any foreign bodies;
If the device is threaded:
• make sure that the pipe thread is not too long, to prevent damaging the body of the device when screwing it on;
If the device is flanged:
• make sure the inlet and outlet counter-flanges are perfectly coaxial and parallel in order to prevent unnecessary
mechanical stress to the body. Also calculate the space to insert the seal gasket;
• With regard to tightening operations, equip yourself with one or two calibrated torque wrenches or other controlled locking
tools;
• With outdoor installation, it is advisable to install a protective roof to prevent rain from oxidising or damaging parts of the
device.
• According to the plant geometry, check the risk of an explosive mixture arising inside the piping;
• If the valve is installed near other devices or as part of an assembly, compatibility between the valve and this other
device must be evaluated beforehand;
• Provide protection against impact or accidental contacts if the solenoid valve is accessible to unqualified personnel.
3.2 - INSTALLATION (see example in 3.4)
Threaded devices:
• Assemble the device by screwing it, with the due seals, onto the plant with pipes and/or fittings whose threads are consistent
with the connection being attached.
• Do not use the neck of the top cover (15) as a lever to help you screw it on, but only use the specific tool;
• The arrow, shown on the body (8) of the device, needs to be pointing towards the application;
• Convey the valve discharge outside, in a non-hazardous ventilated area.
MVS/1 - MVSP/1
: non-aggressive gases of the three families (dry gases)
: -15 - +60 °C
: 1 - 1,5 - 2,5 - 6 - 7 bar (see product label)
: Group 2 (according to EN 13611)
: (DN 8 - DN 15 - DN 20 - DN 25 - DN 32 - DN 40 - DN 50) according to EN 10226
: (DN 25* - DN 32 - DN 40 - DN 50) according to ISO 7005 / EN 1092-1
: PED Directive 2014/68/EU - ATEX Directive 2014/34/EU
- Max P. 1 - 1.5 - 2.5 - 6 bar
- Max P. 1 - 7 bar
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Madas Technical Manual - 7|7.4 - REV. 1 of 28 May 2019
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