Overview

This document details accessories for burners and igniters, covering flame monitoring, burner controls, pressure switches, valve proving systems, spark transformers, safety shut-off valves, and related components. It includes technical specifications, operational parameters, installation guidelines, and application notes.

1. Flame Monitors and Burner Controls

• Ionisation Flame Monitors (AAL 75, AAC 75): Designed for burners with ionisation electrodes or spark transformers. Operate on 115/125/230/250 VAC at 50/60 Hz with 10 VA power. Protection: IP40 enclosure, IP20 terminals. Outputs: two potential-free contacts rated up to 2 A/250 VAC. Operating temperature: -20 °C to +60 °C. Safety time (FFDT) ≤ 1 second. Optional LED/bargraph display available.
• Burner Controls (ASD-75/POI and ASD-75/POD): Suitable for intermittent (POI) or continuous (POD) operation. Supply voltage 115/230 VAC, 50/60 Hz. Adjustable prepurge (0–120 s), first safety time (3–15 s), and flame failure response (1–5 s). Flame intensity range 0–50 µA. Mounted on 35 mm DIN rails, IP20 protection, LED display. Max flame signal cable length 150 m.
• Flame Relay (A 285 K 2.3): Integrates into burner management systems. Operates at 90–110 VDC, IP20 protection. Two potential-free change-over contacts rated 1 A/250 VAC resistive load. Max cable length 150 m.

2. Pressure Switches (FD Series)

• Designed for gases per DVGW G 260 and air, with Rp 1/4 gas port. Operating temperature 0 °C to +60 °C. Protection IP54.
• Max operating pressures: 50 mbar (FD...K0), 300 mbar (FD...K1-7).
• Models offer adjustable pressure settings (2–10 mbar, 5–70 mbar, etc.) and optional indicator lamps (red/green).

3. Spark Transformers (AF Series)

• Models: AF 700 T 20, AF 800 T 10, AF 800 T 51, AF 900 T 10.
• Standard supply voltage 220/230 VAC; optional 110/120 VAC, 50/60 Hz.
• Power ratings from 100 VA to 2x100 VA; ignition voltage 5 kV or 2x5 kV.
• Duty cycle typically 15%, except AF 900 T 10 with 100% duty cycle.
• Protection IP65, cast aluminum housing.
• Suitable for igniters with combined spark/flame rod electrodes.

4. Valve Proving Systems (AD Series)

• Models AD 2 H 1 and AD 2 H 5 with max pressures 100 mbar and 500 mbar respectively.
• Supply voltage: 115/230 VAC standard; 24 VDC optional.
• Operating temperature 0 °C to +60 °C, protection IP54.
• Setting ranges: 10–100 mbar and 40–500 mbar.
• Adjustable testing time from 1 to 130 seconds.
• Used to verify tightness of two gas safety shut-off valves before burner start or after shutdown.

5. Additional Accessories

• Pressure Gauge (S2610): Digital, battery-operated with electronic sensor for pressure and differential pressure measurement. Range 0–1000 mbar, pressure resistance up to 3 bar. Used for burner commissioning and maintenance.
• µ-Ammeter (MA 0-50): DC ammeter for flame signal measurement, range 0–50 µA, includes 32 mA fuse and 1 m cable.
• Ball Valves (Z 845 Z Series): Brass valves for gas flow adjustment in burners and igniters. Tool-adjustable only. Sizes from 1/4" to 1" with male/female threads.
• Air Regulating Sleeves (Z 945 Z Series): Tool-adjustable with lockable cone for air flow adjustment. Made of galvanized malleable cast iron with female/female threads.
• Double Nipples (Z 946 F Series): For direct mounting of air regulating sleeves to burners or igniters. Galvanized malleable cast iron with various thread sizes.

6. Installation and Mounting

• Electrical components designed for 35 mm DIN rail mounting per IEC/EN 60715.
• Protection ratings range from IP20 (controls, relays) to IP65 (spark transformers), ensuring suitability for various environments.
• Maximum flame signal and ionisation cable lengths limited to 150 meters to maintain signal integrity.

7. Environmental and Operational Conditions

• Operating temperature ranges: typically -20 °C to +60 °C; pressure switches rated 0 °C to +60 °C.
• Power supply voltages commonly 115/125/230/250 VAC at 50/60 Hz; some devices offer special voltage options.

8. Manufacturer and Contact Information

Products are supplied by DURAG GmbH and associated brands including DURAG data systems GmbH and Hegwein GmbH. The document lists global contact details for sales and support across multiple countries and regions.

Critical Notes and Best Practices

• Match accessories correctly to burner and igniter types, especially for ionisation monitoring and spark transformer compatibility.
• Observe maximum cable lengths and use proper shielding to maintain signal quality and safety.
• Follow installation standards (DIN rails, IP ratings) to ensure device protection and reliability.
• Use appropriate tools for valve and air regulating sleeve adjustments to avoid damage and ensure precise control.
• Regularly verify valve tightness with valve proving systems to maintain safety compliance.

Company and Brand Overview

DURAG GmbH is the parent company with associated brands such as Smits Vonk, DURAG Siena do Brasil Ltda, and GRIMM Aerosol Technik GmbH & Co. KG.

Global Offices and Contact Details

• Netherlands (Zoetermeer): Smits Vonk, Goudstraat 6, Tel: +31 79 361 35 33, Email: [email protected]
• Brazil (Diadema - SP): DURAG Siena do Brasil Ltda, Rua Vinte e Dois de Agosto, 66, Tel: +55 11 4071-5050 r.28, Email: [email protected]
• Germany (Ainring): GRIMM Aerosol Technik GmbH & Co. KG, Dorfstraße 9, Tel: +49 8654 578-0, Email: [email protected]
• Germany (Hamburg): DURAG Sales and Marketing GmbH & Co. KG, Kollaustraße 105, Tel: +49 40 55 42 18-0, Email: [email protected]
• India (Bengaluru): DURAG India Instrumentation Private Limited, #27/30, 2nd Main Road, Rajajinagar, Tel: +91 80 2314 5626, Email: [email protected]
• Korea (Seoul): DURAG Korea Office, RM #1131, Manhattan Building, Tel: +82 2 761 8970, Email: [email protected]
• China (Shanghai): DURAG Instrumentation (Shanghai) Co., Ltd., Room 706, Dibao Plaza, Tel: +86 21 60732979-200, Email: [email protected]
• UAE (Dubai): DURAG Middle East (Branch), Dubai Airport Free Zone, Tel: +971 4260251 0, Email: [email protected]
• France (Goussainville): DURAG France S.a.r.l., Parc GIP Charles de Gaulle, Tel: +33 1 301 811 80, Email: [email protected]
• Italy (Novara): DURAG Italia S.r.l., Via Carlo Panseri, 118, Tel: +39 0321 679569, Email: [email protected]
• Russia (Moscow): DURAG RUSS OOO, Andropova avenue 18/6, Tel: +7 499 4180090, Email: [email protected]
• USA (Mendota Heights, MN): DURAG, Inc., 1355 Mendota Heights Road, Suite 200, Tel: +1 651 451-1710, Email: [email protected]
• Japan (Mishima-shi): DURAG Japan Office, c/o TMS Planning Inc., Tel: +81 55 977 3994, Email: [email protected]
• UK (Burton-on-Trent): DURAG UK GmbH, Lullington House, Ashby Road, Tel: +44 1283 553 481, Email: [email protected]

Regional Branches in Germany

• DURAG Branch North (Hamburg)
• DURAG Branch East (Freiberg)
• DURAG Branch South (Bad Boll)
• DURAG Branch West (Ratingen)

Each branch offers local contact details for regional support.

Summary

This document serves as a technical and contact directory for DURAG GmbH and its associated companies, providing essential product specifications, installation guidelines, and global contact information to ensure efficient communication and service for customers and partners.