EN161 solenoid valves for natural gas


CS-iTEC becomes SUTO iTEC GmbH

To coincide with the release of their new 2017/2018 catalogue (download or view it here), CS-iTEC have launched a new global brand to further distinguish their products and innovations across the world. The new catalogue introduces new products and capabilities that enhance the ability for engineers and plant managers to understand and control their process efficiency. Dual gas calibration and Steam mass flow measurement are just two of the innovations new for this year.

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Efficiency Monitoring of Compressors

Monitoring of compressor power consumption, output flow and dewpoint is made easy with this kit from CS-iTEC GmbH. It comprises the S 430 pitot tube flow meter, the S 551 datalogger, the S 110 power monitor and the S 212 dew point sensor. The S 430 flow sensor is designed to measure accurately the flow rate of very wet air when mounted directly at the compressor outlet, a function that conventional thermal mass sensors cannot achieve. The S 110 monitors 3 phase voltage and current, calculating the power factor (Cos Phi), instantaneous power and power consumption in kW and kWh. The S 551 collates all these inputs for datalogging using a very simple touchscreen interface and an download the results using a USB interface.

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Now with SIL 3 Compliance!

Sitecna® has announced that their Filter Regulators, Volume Boosters, Quick Exhaust Valves, Spool Valves and Pressure Sensing Switching Valves have all successfully passed TUV testing of Functional Safety for SIL3 compliance. This is of great benefit for critical operation control valve instrumentation requirements demanding absolute reliability by demonstrating reliability data against international standards of testing.

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EN161 Solenoid Valves for Natural Gas

(Posted 09/08/2016 17:10)

Red Dragon offers a complete range of solenoid valves for use with natural gas from 1/2” to DN300 and pressures from 100mbar to 40bar. ATEX certified versions include Exd, Exm and Exn classifications and a full range of functions including normally closed, normally open, manual reset, 2 stage operation, slow opening , slow closing, tandem redundancy and a selection of limit switch choices. If you need a solenoid isolation valve for low or high pressure gas trains we will be able to help.

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Global Success for Sitecna Brings Prices Down

(Posted 03/06/2016 15:10)

The worldwide success of the Italian manufactured Sitecna® pneumatic instrumentation and air preparation range has allowed them to increase efficiencies in manufacture with the result that the prices have come down! The range offers aluminium or 316L stainless steel constructions where all items have ATEX certification and are EAC compliant. The well known performance and quality is still there but the cost of manufacture has come down which has reflected in the new prices this week. Contact us now for the new prices on filter regs, volume boosters, spool valves, quick exhaust valves and much more.

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Red Dragon Exhibiting at Air-Tech 2016

(Posted 29/03/2016 11:10)

Once again, we have a stand at the NEC in Birmingham for this multi show event from 12th to 14th April where this year we will be demonstrating the CS-iTEC range of air/gas measurement solutions.

With a focus on air quality measurement in accordance with ISO 8573 we will have dewpoint, oil vapour and particle counting sensors on display as well as the new S 430 flow sensor designed for wet or dirty gases, high velocities and temperatures up to 200degC.

Come and see us at stand AF250 to learn more about cost effective compliance and the benefits clean air can bring to your plant.

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Stand-alone Measuring and Logging Solution for Oil Vapour

(Posted 10/12/2015 15:40)

CS-iTEC GmbH have announced a further enhancement to the capabilities of the S 120 oil vapour sensor that adds an integral data logging function when the touchscreen display option is selected.

This gives the capability for recording up to 100 million values for oil vapour content of compressed air or gas that can be downloaded through the new USB interface. The revised design provides a completely self contained unit for continuous measuring and recording of oil content data with local display in numerical and graph form for easy interpretation by operators.

The standard communication options of 4-20mA, SDI bus, Modbus/RTU/RS485 and relay output simplify interfacing with all common plant systems.

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New Colour Touchscreen Released

(Posted 14/09/2015 15:00)

CS-iTEC GmbH have now released the much anticipated new control and display screen which offers simplicity, ease of use and clear communication of the measure variables. Available as an add on for the S 120 oil vapour sensor and S 130 particle counter in addition to the new display and data logger models S 330, S 331 and S 551. There are increased communication options and this display will also be at the centre of an entirely new product, details of which will be announced shortly. For more details see our display page.

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Red Dragon at SPE OE15 stand 1A29

(Posted 14/08/2015 10:05)

It’s nearly time for OE15:  8th-11th September. On our stand will be examples of the complete Sitecna range of ATEX certified pneumatic instrumentation plus the CS-iTEC ATEX certified S 450 & S 452 thermal mass flow meters.

We will also be announcing a completely new product for the first time at this show. Again it is ATEX certified but if you want to know more you’ll have to visit stand 1A29 to be one of the first in the world to hear about it.

We’ll also have the details of the latest innovation from Schubert & Salzer and Nadi.

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New Anti Tamper Device for Sitecna Filter Regs

(Posted 7/07/2015 14:05)

Just announced is a new all 316L stainless steel locking cap to suit the Sitecna filter regs and pressure regulators form 1/4” to 1/2”. Lockable by means of a padlock compatible hasp or lock wire, this robust cap prevents unintended or malicious pressure adjustment and accidental damage to the adjusting screw.

Available as an option on new products or as a retro-fit item, the new KTAM tamperproof cap provides rugged security and ease of use for all applications.

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New products to launch at Com Vac next week

(Posted 7/04/2015 16:45)

We are visiting the CS-iTEC stand at Com Vac in Germany next week for the worldwide launch of their innovative new sensors. There’s very little information available yet but we’re hoping to see a new flow meter which solves a difficult problem with complying to legislation, a new analysis unit and a revolutionary compressed air monitoring solution.

Keep watching this page for details on these new products.


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Maintec 2015 March 24-26th

(Posted 11/03/2015 16:15)

We are exhibiting as part of the Maintec event this month and it will be the first chance to see the CS-iTEC range of air/gas measurement and monitoring products in the UK. Come along to stand M20J and learn how our monitoring solutions can benefit your organisation. We’ll have working examples to demonstrate their ease of use and flexibility to adapt to all applications.

We’ll also have ATEX certified products from Sitecna® and Nadi on display and look forward to meeting everyone there.


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New Cryogenic Solenoid Valve Design Overcomes Freezing Problem

The new L90 series valve has been developed from the established L89 model that has been successfully operating in cryo plants across the globe for many years. The valve was developed as a particular plant had a system where even the normally reliable L89 was failing to fully open and an extensive investigation found that it wasn’t a problem of the valve construction.

Conventional valve “sticking” is caused by humidity or dirt freezing at cryogenic temperatures and bridging the close tolerances of the moving components. Instead the cause was related to the fluid conditions within a complex LN2 regulation circuit for a very big climatic chamber where in a very particular set of conditions the valve would not fully open.

In order to resolve the problem for the client, the valve manufacturer Nadi Srl of Italy made some radical changes to the valve internal design which proved highly successful when installed and this higher performance valve assembly has now been standardised as the L90, completely superseding the old L89 model.

All body material, size and certification options from the L89 are carried forward to the new valve and this enhanced performance is available now.


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New GOST EAC Certified Products Now Shipping

We have just shipped the first batch of GOST EAC certified Lock-Up valves intended for a Russian project and since the whole supply needed to have the same certification, we had to apply the EAC standard to all of them before the March 15th 2015 which is the expiration date for all previous R or TR certificates.

The change in certificates harmonises the requirements for Russia, Kazakhstan and Belarus which removes the need for different national certificates but adds complexity in that the product nameplate markings do vary dependent on the country of destination.

The Russian language nameplate pictured here is on an aluminium lock-up valve specified for operating temperatures down to -55C

All of the Sitecna® range of air preparation and flow control products are now covered by this certification ahead of the official changeover date. The previous certification was provided as standard across these products but the requirement for different markings depending on the destination now means that we can only provide this compliance to order when the end-use country is confirmed,


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"It's for a critical system!"

(Posted 23/01/2015 11:45)

Recently a power station had a coil fail on a solenoid valve. Normally this wouldn't be a major problem but in this case the valve was effectively the weak link in the system and the plant stopped generating, costing them £10 million. The coil was replaced for a few pounds and is still working reliably today but as we pointed out, there was still a risk of failure because nothing else had been put into place to prevent another costly outage.

We suggested to the client that due to the potential cost of another shutdown, that it would be worth fitting a replacement solenoid valve that incorporated redundancy and a Nadi C90 1oo2 dual redundant solenoid valve was proposed. This would maintain correct operation if one of the coils failed and prevent another outage from the same cause.

It was declined by the client because it cost more than the £15.00 replacement coil. No consideration was given to the potential disruption of service or cost of a future failure and so far it's still working.

Would this result support the argument that they made a sound commercial decision, saving a couple of hundred pounds and an hour in labour? Would you take that risk?


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Red Dragon at Hazardex Process Safety Conference & Exhibitions

(Posted 12/01/2015 15:20)

Red Dragon will be supporting the upcoming Swansea and Ellesmere Port Process Safety events by exhibiting our wide range of ATEX certified products for hazardous environments. We expect to be announcing some new developments in our Nadi solenoid valve range and look forward to discussing this with the delegates.

Also on display will be the comprehensively certified Sitecna® range of air preparation and flow control equipment, Boscarol cryogenic valves and selected items from our new CS-iTEC instrumentation range.

The special 2 for 1 reduced rate for delegates is still available here at present and we look forward to seeing you there.


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Handheld Datalogging Dewpoint Sensor for Air Quality Audits and System Inspections

(Posted 15/12/2014 10:00)

Accurate assessment of air quality now takes less time thanks to the CS 502 Pro from CS-iTEC GmbH. This hand held dew point meter with touchscreen colour LCD display incorporates several features designed to reduce the time taken for audits and inspections.

  1. Fast measurement due to the innovative measuring chamber that incorporates a parking function where the sensor is isolated from the atmosphere and any residual moisture is absorbed through desiccant gel. This means that by moving the lever from park to sense, the unit is ready to measure immediately.
  2. Built in SD Card datalogging function for up to 100 million values that can be stored or communicated to your PC directly or through USB or Bluetooth.
  3. Bluetooth interface connects to battery operated printer for immediate print outs anywhere on plant.
  4. Sensor measures and displays dew point, pressure and temperature, removing the need for conversion tables or calculations that would take longer and possibly introduce errors into the readings.

The CS 502 Pro is available as a complete kit including the 502 Pro sensor with high speed measuring chamber, Teflon® measuring hose and quick connector for uncontaminated readings, mobile printer with Bluetooth interface, USB charger and heavy duty transport case as shown here.

For further details on the CS 502 Pro please call us on +44 (0)1443 772500


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Versatile Air/Gas Flow/Consumption Sensor

(Posted 08/12/2014 16:45)

Thermal mass flowmeters are ideal for dry gas measurement as they are independent of pressure or temperature changes and offer very fast response times.

The CS 400 range of insertion type sensors and the CS 420 range of inline sensors offer a cost effective means to achieve accurate monitoring in applications such as:

With mass flow, volumetric flow or velocity outputs in line pressures up to 50Bar, the CS 400 can accommodate any pipe wall thickness using the engraved depth scale on the stem and is available to suit pipe sizes up to DN1500. Available with or without LCD display, it offers a 4-20mA analogue output plus pulse output and units of m3/h, m3/min, l/min, cfm, m/s,kg/min, kg/h or kg/s.

The CS 400 units simplify installation by fitting into existing 1/2” tappings or we can provide a hot tapping drill for fitting to live pipework. The inline meters series CS 420 allow the meter head to be removed for calibration or replacement without dismantling pipe sections.

For more information on these items and to download the datasheets follow this link.


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Red Dragon Exhibit at EIC Connect Oil & Gas

(Posted 28/11/2014 17:20)

We’ve just returned from another successful exhibition, this time in Manchester at the EIC Connect Oil & Gas supplier event. This 2 day event included seminars and the ever popular one to one meetings with buyers from operators and EPC contractors.

Thanks to our current customers that took the time to visit us here and the delegates that came to find us and discuss our product ranges.

Our Sitecna® product display attracted a lot of interest and directly led to a large project enquiry on the first day of the show!

Our next exhibition is the HazardEx local event in Swansea and we hope to see you there.


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Valve Testing Proves its Worth

(Posted 17/11/2014 16:30)

We had a recent request for a 3 way diverting valve to prove the effectiveness of a new process in the baking industry. The valve had to fit with an existing pipe layout and very specific requirements on the flow paths for the open and closed position. Unfortunately due to time constraints we couldn’t supply the valve with triclamp connections and the customer decided on flanges as shown.

This is a 2” Tee ported ball valve in CF8M stainless steel fitted with spring return pneumatic actuator and upon receipt of this unit we decided to check the operation of the valve prior to fitting the namur solenoid valve.

Our newly finished workshop allowed us to quickly identify that the valve configuration received was opposite to that ordered and it was a simple procedure to rectify it and re-test . Once the configuration was correct we fitted and tested the namur solenoid valve before passing it for despatch.

Our workshop will develop further with more test rigs and instruments yet to be installed so that we can ensure all products we supply are fully tested. In this case we were able to maintain a quick delivery for the client and prevent any problems from delaying their tests.


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NEW! Dual Lock-Up Valve for Ambient Temps down to -55C

(Posted 10/11/2014 10:45)

Complementing the existing range of Sitecna ATEX & GOST certified pneumatic products for harsh environments, the Lock-Up valve range has now expanded adding dual circuit functionality to the LK04 series.

This allows the use of single lock-up valves for spring return actuators and double lock-up valves for double acting actuators to prevent the actuator from moving in the event of pneumatic signal failure.

These valves have excellent sensitivity giving fast response once the signal level drops below the setpoint.

Construction for both single and double valves are in either 316L stainless steel or epoxy coated copper free aluminium as shown here.

Different elastomer options allow operation in ambient temperature ranges between -20 to +80C and -55 to +90C.

More details on the LK04 range or call us on +44 1443 772500


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NEW! CS 220 Dew Point Sensor Accurate to -100C

(Posted 31/10/2014 14:15)

The latest addition to the CS-iTEC dew point measurement range is the CS 220, a unit designed with an innovative new sensor assembly to deliver long term stability in measuring very low moisture levels. Compared to other common sensor constructions, this new element does not suffer from condensate clogging and allows very fast response times down to -100degC dew point.

The compact design is ideal for compressed air dryer installations and with pressure ranges of 16 or 50Bar and a range of output options including 1 or 2 x 4-20mA and RS485 Modbus, offers compatibility with most compressed air monitoring systems.

In addition to dew point, options on the CS 220 allow for the measurement of temperature and pressure so that one instrument can replace 3 conventional sensors, reducing potential leak paths in the system, simplifying wiring requirements and allowing tighter packaging within enclosures.

More details here or call us on +44(0)1443 772500


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EN161 solenoid valves for Natural Gas

(Posted 28/10/2014 11:25)

We offer a wide range of EN161 compliant solenoid valves for natural gas. Pictured here are a selection of sizes up to 4" DN100 from our autoreset range of aluminium bodied normally closed solenoid valves suitable for natural gas up to 360mBar. Ideal for use in plant rooms, burner systems and gas trains, they offer excellent flow characteristics and rugged construction.

We also offer the same sizes in manual reset function for systems where direct operator input is required for safety before the gas is allowed to flow.

For more stringent applications where the valves may be in a potential explosive atmosphere, need to work with higher pressures or require other functions and options, we can supply solenoid valves up to 8" DN200 and suitable for pressures up to 40Bar. Other options include position feedback switches, ATEX certified coils, flanged or threaded connections, a wide range of body materials, slow opening or slow closing designs, double coils, two stage flow control and further custom operations on request.

For line sizes above 8", we can still provide EN161 compliance but the valves require an additional compressed air pilot supply.

If you need an EN161 solenoid valve for natural gas duty, we will have a solution in our range. Call us now to discuss the best one for you. +44(0) 1443 772500

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Red Dragon to Exhibit at EIC Connect: Oil & Gas in November

(Posted 20/10/2014 14:15)

Red Dragon is exhibiting at the national EIC Connect event for the second year in a row next month. This it is targeted at the Oil & Gas sector as a combined supply chain event and conference.


Red Dragon will be showcasing the latest developments in hazardous area and harsh environment pneumatic solutions from Sitecna Srl and releasing details of some exciting new products. We'll also be talking about leakage detection and quality monitoring for complementary air/gas systems in addition to our proven ATEX solenoid valve range.


The show runs 25th to 26th November at Manchester Central and we look forward to seeing you on stand A29.

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New Compact Residual Oil Monitor for High Purity Compressed Air

(Posted 03/10/2014 09:43)

Production processes in the pharmaceutical, food, beverage, or semiconductor industries require a particularly high purity of compressed air to ensure product quality and safety. In addition to the measurement of dew point and the amount of particles, the measurement of oil vapour content is also frequently required. In accordance with the requirements of ISO 8573-5 for accuracy and detection limits, the new oil vapour sensor CS 120 manufactured by CS-iTEC GmbH and available in the UK from Red Dragon Ltd, measures down to a lower limit of 0.001 mg / m³. The oil vapour sensor can replace time-consuming and costly standard methods such as sampling and laboratory analysis.


The compact CS 120 is available for fixed installation or portable duty, is easy to use and provides fast results. The integrated automatic calibration ensures highest accuracy and long term stability.  Sensor contamination and lifetime is monitored and displayed via status information to the user. To protect the sensor from exceeding maximum permissible oil contents, a safety valve will switch the sampling air to a bypass position.

Portable measurements can be made in connection with CS-iTEC data loggers. As a stationary solution CS 120 allows the monitoring of alarm limits and can be integrated into existing SCADA systems.

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New Website!

(Posted 26/09/2014 09:48)

We are pleased to announce our new website has gone live this morning!

We'd been working towards a new site for quite some time but becoming UK partners for CS-iTEC GmbH in July increased the urgency of the update to include the new product range. Unfortunately our planned site structure wasn't going to be compatible so we made the decision to start again from scratch.

This new site gives us the flexibility to respond faster to product developments and with other plans in progress, we expect to make another announcement very soon.

Please also visit our other sites of www.sitecna.co.uk and www.solenoidvalves.co.uk for additional information.

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Older archived news articles

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Red Dragon exhibiting at EIC Connect Oil & Gas 2014 on stand A29 Portable CS 120 residual oil sensor kit for air quality monitoring to ISO 8573-1 standards CS120 oil vapour content sensor measures down to 0.001mg/m3 Sitecna LK04 single and double lock-up valves in aluminium or 316L stainless steel with ATEX & GOST certification 2" flanged stainless steel ball valve with spring return pneumatic actuator and namur mounted 3/2 solenoid valve Red Dragon stand at EIC Connect Oil & Gas exhibition promoting Sitecna, Nadi and CS-iTEC products CS-iTEC CS 400 insertion type thermal mass flow sensor for air and gases CS-iTEC GmbH CS 502 Pro portable dew point meter set including bluetooth printer Red Dragon Exhibiting at Hazardex Swansea and Ellesmere Port Nadi C90 series dual redundant 3/2 solenoid valve with 1oo2 functionality for critical systems Sitecna GOST EAC certified double lock-up valve for -55 degrees C New L90 high performance cryogenic solenoid valve New products from CS-iTEC to launch at Com Vac in Hannover next week Click here to register for free entry to the exhibition S 331 display and datalogger with 5" colour touchscreen CS-iTEC S 120 oil vapour sensor with touchscreen display and integral data logger Stand AF250 Air Tech 2016 ATEX certified filter regs, volume boosters, flow regs, QEV etc now better prices EN161 solenoid valves for natural gas IEC 61508 SIL3 Functional Safety compliance available on filter regs, volumen boosters, quick exhaust valves, spool valves and switching valves Compressor measurement and performance data logging using S 430 pitot tube flow sensor, S 110 power meter and S 551 data logger CS-iTEC has become SUTO iTEC and launched a new product catalogue under this brand for 2017/2018