Safety Valves

Designed for steam, gaseous and liquid fluids applications. The valves are of full-nozzle, full lift and spring loaded type.

The 30000 Series pressure relief valves have been designed for steam, gaseous and liquid fluids applications. The valves are of full-nozzle, full lift and spring loaded type.
Orifices, dimensions, connections, materials and application limits are in accordance with API 526 Standard and are homologated by ISPESL.

The valve body is a casting with thickness in compliance with standard ASME B 16.34. The wide internal hollow of the body assures an easy expansion of the discharging fluid and a minimum back pressure due to discharge.

* Zoekterm: veerveiligheden, safety valves, Technical
Pilot operated safety valve

30000P Series Pilot Operated Safety Valves by Technical are designed in compliance with EN 12516-1 and ASME B 16.34 standards and,
as they derive from 30000 Series, spring-loaded valves, orifices and center-to-face dimensions are compliant with API 526 standards.

Available orifices range from D up to U with connections from 1" x 2" up to 10" x 12" and rating from 150# x 150# up to 2500# x 600# according with ASME B 16.5 standard.

Connections according with different standards are available upon request.

* Zoekterm: veerveiligheden, safety valves, Technical
Maximum setting pressure 700 bar

Full nozzle and full lift safety valves, suitable for gas, vapour and liquid service. 20000 Series safety valves have a "metal on metal" seat
and are available in bronze, carbon steel, stainless steel and superalloy, with orifice diameter from 8 mm to 9,5 mm. Connections can be flanged or threaded, from ½" to 1". Maximum setting pressure 700 bar. Typical application : protection of tank under pressure ; protection against thermal expansion, cryogenics.

* Zoekterm: veerveiligheden, safety valves, Technical
High discharge coefficient (k=0.96)

Safety valves 10000 Series, designed and manufactured by Technical s.r.l. in accordance with international standards, are full nozzle and total lift type. They posses a high discharge coefficient (k=0.96), certified by I.S.P.E.S.L. on the basis of experimental tests performed by authorized laboratories; are suitable for gaseous and liquid fluids

The body and the bonnet are made from casting. The bonnet contains or the spiral spring or belleville spring depending on the use and type of fluid

The seat is plane and "metal on metal" type; it is possible to add valves with a soft sealing ring (FPM rubber). Upon request, the valve is also available with accessories such as the packed lifting lever, test gag, and balancing-isolation bellows.

* Zoekterm: veerveiligheden, safety valves, Technical
Exclusively to be used with fluids

The safety valves of the series 4000 have been designed and are made exclusively to be used with fluids in the liquid state.
They are therefore characterized by the absence of the blowdown ring and by the proportional lift that is the solution, with respect to the reliability, to protect equipment characterized by periodic peaks of pressure

The most frequent use is therefore as safety valve for piston metering pumps, single or multiple head.

* Zoekterm: veerveiligheden, safety valves, Technical
Available up to 700 bar (10,000 psi) set pressure.

The safety valves series SV 10001 are made of stainless steel SS 316L, as a standard, and of superalloys, on request.
The main features of the valves in this series are: connections ¼ ", the adjustable outlet connection (allows easy mounting) and the isolation of the spring from the fluid.

These elements make it the ideal solution for all applications where there is limited space for the installation of the safety valve, high pressures associated with small flow rates, at least in the case of liquids. For this series PED certification and CE marking is available up to 700 bar (10,000 psi) set pressure.

* Zoekterm: veerveiligheden, safety valves, Technical
CE marking is available up to 330 bar set pressure

The safety valves SV 5001-H Series are particularly indicated to protect tanks fed, low delivery pumps pneumatic and hydraulic lines or to protect from thermal expansion. They can be used with either with liquid or with gaseous fluids at ambient temperature.

For this series PED certification and CE marking is available up to 330 bar set pressure.

* Zoekterm: veerveiligheden, safety valves, Technical
The mounted valves can be positioned in the most opportune position.

The changeover valve CV-1500 Series permits to intercept one of two valves mounted on it making operate simultaneously the other one and permitting to carrying out the disassembling and the maintenance.

The simultaneous interception of the two valves is never possible.

The mounted valves can be positioned in the most opportune position.

* Zoekterm: veerveiligheden, safety valves, Technical
These valves can operate up to 700 bar and be utilized either with liquids or with gaseous fluids


The control gate valves GV 20000-20000 Y, designed and produced by Technical S.r.l., are used principally to discharge condensation from the separators installed in natural gas extraction wells.

These valves can operate up to 700 bar and be utilized either with liquids or with gaseous fluids.

The valves have an integral pneumatic or hydraulic actuator and can also be furnished with various accessories designed to automate the operation. All trims are interchangeable with all sizing.

* Zoekterm: veerveiligheden, safety valves, Technical
The pneumatic pressure switch PP 10000 Series, designed and produced by Technical srl, can be efficaciously employed in automating a line in pressure or a plant. The pressure switch controls a pneumatic signal either in case of dropping or in case of increasing of the line pressure on which it is installed. The line pressure is detected by a piston opposite to an adjustable spring through a spindle. When the pressure reaches the setting, the distributor block the signal pressure and joints the outlet to the vent line. The PP 10000 pressure switch can operate also in the reverse mode: the signal pressure is put on when the set pressure is reached. The setting pressure can be done on all the range of the spring either in the high pressure or in the low pressure working.

* Zoekterm: veerveiligheden, safety valves, pneumatische druk schakelaar, Technical
The REF 3000 Series velocity check valve is used to automatically block the flow of the line on which it is installed in the case of an increase in speed due to the opening of the circuit downstream because of a maneuver, the collapse of a fuse plug, the breakdown of a seal or any other event which causes the downstream fluid flow.

The commonest installation is on service lines equipped with fuse plugs.

At the outbreak of a fire or as a result of a strong increase in the temperature in the protected installation, one or more fuse plugs collapse and let the fluid escape causing the REF 3000 to come into action.



* Zoekterm: veerveiligheden, safety valves, Technical
The universal SV3 Series pneumatic servovalve make it possible to automate a line under pressure. This is achieved by employing either a pneumatic signal or manual action to activate the Three-way distributor which switches over the internal connections.

The following configurations are available: automatic, with manual reset, bistable and manual.

* Zoekterm: veerveiligheden, safety valves, Technical

The function of a safety valve device is to protect work environments and human lives. In case of excessive pressure in a process, if the upward force of a substance exceeds the downward force of the spring, the valve will open and blow off the substance. When the pressure drops to the set value, the valve will close again.

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