0293

0293 BURKERT | Alldatasheet

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Technical content

Visit product website  DATA SHEET 1000204244 | Standard | EU | en | 201904 | 05 Direct-acting 2/2 way plunger valve

• Gas valve with DVGW appr oval acc. to EN 161, Group B Compact design Up t o DN25 and 150 mbar Body in br ass Dir t filter in the inlet Type 293 switches without pressure difference from zero bar. The valve is es- pecially good for switching low-pressure combustible gases.The direct-acting solenoid valve is delivered with circuit function A. It is normally closed. Upon switching, the magnetic core is tightened against the spring and the valve opens. A filter is built-in to the inlet. A dirt trap ≤ 500 µm (e xample our type TFU001) needs to be installed before the valve when using DN 25. This dirt trap needs to be accessible for maintenance. Product variants described in the data sheet may differ from the product presentation and description. Type description Type 0293 © Christian Bürkert GmbH & Co. KG, Subject to alteration

2 | 6Visit product website  Table of contents 1. Gener al technical data 3 Cir cuit functions Dimensions Or dering information 4.2. Bürk ert product filter 4.3. Or dering chart 4.4. Or dering chart accessories Strainer

3 | 6Visit product website  1. Gener al technical data Product properties Materials Body material Brass Inner part valve Stainless steel Seal material NBR Duty cycle 100 % continuous r ating Flow rate: KV value water Measured at + 20 °C, 1 bar pr essure at valve inlet and free outlet (flow rate values see table below) Pressure values Overpressure with respect to atmospheric pressure (pressure values see table below) Switching times Measured at valve outlet at 150 mbar and + °C (switching times see table below) Opening P ressure rise 0…90 Closing P ressure relief 100…10 Special featur es Sieve in inlet, for DN25 it is necessary to install a dirt filter, (max. 500 um) upstream of the valve, which is accessible during maintenance work, e.g. Type TFU001 Electrical data Operating voltages 230 V/50 Hz / 230 V/UC Voltage tolerance ± Medium data Medium (for NBR) Fuel gases of the 1st, 2nd and 3rd gas families Medium temperature (for NBR) - °C…+ Appr ovals and Certificates DVGW Group 2, class B Fulfilled standards DIN EN 161 Protection class IP65 with cable plug acc. DIN EN 175301 803 P roduct connections Orifice DN20…DN25 mm Port connection Threaded ports G ¾ and G 1 Electrical connection Cable plug for Ø 7 mm cable (included in delivery) Environment and installation Ambient temperature - °C…+ Ambient Also open air (open cover r ecommended) Installation As required, preferably with actuator upright Accessories Strainer Brass body Detailed information can be found in chapter “4.4. Ordering chart accessories” on page 5. Orifice Port connection K V value water Pressure range Response times 1.) Closing Weight Opening Closing Inrush Hold AC UC AC UC [mm] [m3/h] [mbar] [ms] [ms] [VA] [W] [VA/W] [W] [kg] 20 G ¾ 5.0 0…150 130…250 120…150 100 120 100 25/16 9 1.3 25 G 1 10.0 0…150 130…250 120 …150 100 120 100 25/16 9 1.7 1.) With UC coil, depending on duty cycle and ambient temperature max. 15 switchings/min. 2. Cir cuit functions Circuit Function Description 2 (A) 1 (P) Type: A, solenoid valve 2/2 way Direct-acting Normally closed

4 | 6Visit product website  3. Dimensions A SW DN D A B E F H J L SW 20 G ¾ 106 122 60 16 49 86.5 100 32 25 G 1 110.5 131 70 18 49 91.5 115 41 4. Or dering information 4.1. Bürk ert eShop – Easy ordering and quick delivery Bürkert eShop – Easy ordering and fast delivery You want to find your desired Bürkert product or spare part quickly and order dir ectly? Our online shop is available for you 24/7. Sign up and enjoy all the benefits. Order online now 4.2. Bürk ert product filter Bürkert product filter – Get quickly to the right product You want to select products comfortably based on your technical requirements? Use the Bürkert product filter and find suitable articles for your application quickly and easily. Try out our product filter

5 | 6Visit product website  4.3. Or dering chart Note: F urther versions are available on request. All valves list ed below are valves with brass body and cable plug. Circuit function Orifice Port connection K V value water QNn value air Pressure range Remarks Seal material Voltage/ frequency Weight Article no. [mm] [m 3/h] [l/min] [mbar] [V/Hz] [kg] A 20.0 G ¾ 5.0 5400 0…150 – NBR 230/50 230/50 279478  A 20.0 G ¾ 5.0 5400 0…150 noise reduced NBR 230/UC1.) 230/UC1.) 279479  A 25.0 G 1 10.0 10800 0…150 – NBR 230/50 230/50 256321  A 25.0 G 1 10.0 10800 0…150 noise reduced NBR 230/UC1.) – 279480  1.) Electric versions (UC) with integrated rectifier 4.4. Or dering chart accessories Strainer Note: The dirt trap prevents malfunctions and extends the service life of downstream valves. See data sheet Type TFU001 Port connection Orifice Sieve KV Flow range Pressure level PN Article no. [mm] [µm] [m3/h] [bar] G ¾ 20.0 400 7.85 20 783673  G 1 25.0 400 11.08 20 783674 

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