Safety relief valve - SL 10
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Safety Relief Valve SL 10 Product information © 01.2023

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Table of Contents Application, Characteristics, Technical Data 4 Application 4 Characteristics 4 Type of model / Options 4 Technical data 5 Structure and function 6 Installation example 6 Sectional view 7 Valve seat diameter, measuring unit diameter 8 Diaphragm assembly setpoint spring table 8 Dimensions, Connection, and Weight 9 Dimensions and weight 9 Dimensional drawing 9 Connections 9 Types of Models / Options 10 Properties of Gases 11 Order Data 12 Contact 13 Notes 15 Observe the following publications in relation to ATTENTION installation, start-up and maintenance: DVGW - work sheets...

Application, Characteristics, Technical Data Application Safety relief valve (SRV), direct-acting (operating without auxiliary power), for systems acc. to DVGW work sheets G 491 (A) and G 600 (A) (TRGI) Can be used as an equipment component on gas consumption facilities as defined in Regulation (EU) 2016/426. Can be used for the gases defined in DVGW work sheet G 260 / G 262 and neutral non-aggressive gases. (other gases on request) Integral pressure-tight version (IS) Class A Position-independent installation H igh level of response accuracy Open-air model Type of model / Options (see page...

Technical data Type Max. inlet pressure pu,max Nominal width Material Housing / actuator housing DIN EN ISO 12944-2 without additional coatings an epoxy resin coating is recommended (see page10) Temperature range, Class 2 (operating/ambient temperature) Accuracy class AC 5 Closing pressure group SG Function, strength and tightness CE mark acc. to PED/ PIN number CE-0085-AQ0879 Ex protection The mechanical parts of the device do not have any potential ignition sources of their own and therefore do not fall within the scope of ATEX 95 (94/9/EC). Electrical components fitted to the device...

Structure and function The spring-loaded safety relief valve SL 10 is used for reducing short-term pressure surges upstream of gas consumption systems or preventing an inadmissibly high pressure increase due to escaping gas, and is intended to protect downstream system components from excessive pressure levels. The safety relief valve is composed of the actuator housing and the “control device” functional unit. In the closed position, the gas flows into the actuator housing in the direction of the arrow. The internal measurement line port is used to pass the outlet pressure to be regulated...

Sectional view Diaphragm assembly Adjusting screw Control device Main diaphragm internal measurement port Actuator housing Spindle

Valve seat diameter, measuring unit diameter Nominal width maximum flow rate (Nm³/h) Diaphragm assembly Diaphragm assembly setpoint spring table Pressure range (mbar) Spring data Spring no. *) with high-pressure spring plate (HD1) **) with high-pressure screw spindle (HD2) © 01.2023

Dimensions, Connection, and Weight Dimensions and weight Nominal width DN Dimensional drawing SL10/Rp 1“ with HD2 Weight (SRV + HD2): 2.5 kg + 0.4 kg = 2.9 kg Dimensions (A + HD2): 173 mm + 112 mm = 285 mm Connections Nominal width Breather line Connection* for: Tube 10 x 1.5 (thread G 1/4) Note Observe the following publications in relation to installation, start-up, and maintenance: DVGW - work sheets G 491 and G 600 Operating and Maintenance Instructions SL 10 For all nominal widths, the direction of flow is indicated by an arrow on the housing. *) Threaded pipe connections to DIN EN ISO...

Types of Models / Options BV breather valve The BV breather valve is used to secure the installation room against inadmissible escape of gas from diaphragm comparator compartments of safety shut-off valves. In case of a defect, the impermissible escape of gas into the surrounding atmosphere is limited to a maximum of 30l/h (air). It also serves as a substitute for an expensive and complex installation of breather lines. (Option not available for hydrogen version H2) Epoxy resin coating in RAL colors To protect the safety relief valves from external influences, starting from a corrosivity...

for natural gas (ρn = 0.83 kg/m³; t = 15°C) f - natural gas conversion factor- L Gas f Hs,n Gas f Hs,n [kWh/m³] [kWh/m³] Acetylene 0.84 16.25 Sewage gas 0.84 Ammonia 1.04 4.83 Carbon monoxide 0.81 3.51 Butane 0.55 37.23 Carbon dioxide 0.65 Chlorine 0.51 - Air 0.80 Landfill gas approx. 0.80 Methane 1.08 11.06 Natural gas L 1.00 9.77 Propane 0.64 28.03 Natural gas H 1.03 11.45 Oxygen 0.76 Ethane 0.78 19.55 Sulphur dioxide 0.53 Ethylene 0.97 16.516 Nitrogen 0.81 Mine gas (30% CH4) 0.86 Hydrogen 3.04 13.43 Helium 2.15 -

Order Data Safety relief valve: Order code: Example: Order selection Acceptance test certificate to EN 10204/3.1 without acceptance test certificate with acceptance test certificate Special model - Coating with epoxy resin in RAL colors - Oxygen model We recommend, for systems with regulators up to DN 100 our SL10-Rp 1“ up to DN 150 our SL10-Rp 1 ½“ up to DN 200 our SL10-Rp 2“ *) Coating with epoxy resin in RAL colors Oxygen model In every selection group, there is only one option that can be selected.

Contact Management ALEXANDER CHRISTIANI Technical Inside Sales Department MINDAUGAS PECKAITIS Phone: Mail: Head of Sales & Marketing FRANZ FEICHTNER Inside Sales Department SEBASTIAN HUCKESTEIN Head of Inside Sales Department MANUEL SCHEPP Inside Sales Department STEFANIE MÜLLER If you want to know more about solutions from MEDENUS for the gas industry, please contact your local contact person or go to our internet site at www.medenus.de Trade representation worldwide medenus.de/de/kontakt.html Gas-Druckregeltechnik GmbH Im Langen Feld 3 D-57462 Olpe Phone: +49 (0)2761 82788-0 Fax: +49...

The Medenus plus 10 reasons for good business relations 1. Consultancy expertise and quality standards developed over decades 2. Broad and proven standard range of feedback controllers 3. Modern, fast and efficient production for series products and for individual orders 4. Customer-specific design of pressure regulators and vacuum regulators and special designs 5. Guaranteed deadline compliance with a delivery deadline guarantee 6. Fast response time in all matters 7. Sufficiently large parts storage for production and spare parts 8. Customer-specific theory & practice training courses 9....