Peppers防爆格兰头（Peppers A2LF type glands）

Gas Group

Internal Ignition Source

Enclosure Volume

Which Zone

Use A2LF Gland

IIC, IIB, IIA

NO

2 litres or less

Zone 1 or 2

YES

IIB, IIA

YES

Any

Zone 2

YES

IIB, IIA

YES

2 litres or less

Zone 1

YES

• Suitable only for fixed installations. The cable must be clamped near the gland to prevent pulling and twisting
• Gland Size does not necessarily equate to the entry thread size
• Integral entry thread seal option is not available for glands with tapered entry threads. IP washers can be supplied if required
• Please note that dimensions (A) and (B) may differ for glands with non-Metric entry threads. Please refer to our thread data tables for specific dimensions
• Unless otherwise stated ISO Metric entry threads have a 1.5mm pitch
• For Flameproof Exd applications the female thread into which the gland is to be fitted must comply with clause 5.3 of EN 50018:2000 (clause 5.3 IEC 79-1) and an engagement of at least 5 full threads must be achieved for parallel threads and should be achieved for tapered threads
• Where A2LF type glands are fitted into non-metallic Increased Safety Exe enclosures they must be included within the earth circuit of the system
• The user should seek expert advice if intending to combine flammable gases and combustible dusts in one environment/ installation
• Full assembly instructions are supplied with glands, the instructions must be read prior to installation and adhered to in full
• In order to maintain an IP rating greater than IP54, when used in a clearance hole, a suitable IP washer is required.
• Peppers supplies cable glands with parallel entry threads which conform to the flameproof threaded joint requirements of IEC 60079-1 and other equivalent standards. They usually incorporate a thread run out according to the available machining techniques, and will not have a full-form thread for the entire length. Peppers will not be held responsible for clients’ installations where this has not been taken into account.