Gas Group

Internal Ignition Source

Enclosure Volume

Which Zone

Use Type CR-1B Gland

IIC, IIB, IIA

NO

Any

Zone 1 or 2

YES

IIB, IIA

YES

Any

Zone 2

YES

IIB, IIA

YES

2 litres or less

Zone 1

YES

• Gland Size does not necessarily equate to the entry thread size
• The IP O-ring seal is only available on metric entry threads. IP washers can be supplied for tapered entry threads. IP O-rings cannot be used in conjunction with a flat IP washer.
• Dimensions (A) & (B) may differ for glands with non metric entry threads. Please refer to our “Thread Reference Tables” for specific dimensions.
• Where glands are fitted into non-metallic Ex e enclosures they must be included within the earth circuit of the system.
• The user should seek expert advice if intending to combine flammable and combustible dust in one environment/installation.
• Assembly instructions must be read prior to installation and adhered to in full.
• Peppers supply cable glands with parallel entry threads that conform to the flameproof threaded joint requirements of IEC/EN 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.
• To maintain the specified IP rating, clearance holes must be in accordance with EN 50262 Table 1 and the entry device should be suitably secured.
• The CR-O version is not suitable for Ex nR applications.
• All gland kits supplied with silicone seals will include a PTFE IP washer in order to maintain the temperature range