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781 | Breather / Drain Plug Available in brass, nickel plated brass, aluminium, stainless steel & nylon

Breather / Drain Plug, Globally Approved, Explosive Atmosphere Cable / Conduit Accessory

• 781E for Ex e use
• 781D for Ex d use
• Drains equipment susceptible to moisture collection
• Enables equipment to breathe
• General purpose / industrial version available
• Nylon Ex e only version available (-20˚C to +60˚C)
• -60˚C to 130˚C (metallic versions)
• Globally marked, IECEx, ATEX & cCSAus

 

HOW TO ORDER

e.g. 781 – D – M – 3 = Ex d – M25 e.g. 781 – E – M – 3 = Ex e – M25 Other Thread Variations are available on request. For further information on ordering please refer to page 150. The CMP 781E range of Increased Safety type ‘e’ breather / drain plugs have been tested together with CMP serrated washers to ensure that in areas that are subject to vibration the plug does not suffer from self-loosening and in advertently fall out of the enclosure. Serrated washers are not included as standard but can be ordered separately

BS 6121:Part 1:1989, IEC 62444, EN 62444
IK10 to IEC 62262 (20 joules) Brass & Stainless Steel Only
SIRA 10 ATEX 1307U
781D: II 2G Ex d IIC Gb, II 1D Ex ta IIIC Da
781E: II 2G Ex e IIC Gb, II 1D Ex ta IIIC Da
EN 60079-0,1,7,31
IECEx CML 18.0187U
781D: Ex d IIC Gb, Ex ta IIIC Da
781E: Ex e IIC Gb, Ex ta IIIC Da
IEC 60079-0,1,7,31
1055233
781D: Ex d IIC, Class I, Zone 1 AEx d IIC; Class I Div 1, Groups A,B,C,D
IP66, Enclosure Type 4X
781E: Ex e II, Class I, Zone 1, AEx e II
IP66, Enclosure Type 4X
CSA C22.2 No 0-10, 0.5, 30, 94; e 60079-0,1,7, E61241-1-1, UL50, 1203, UL60079-0,1,7
E253914
781D: Class I, Zone 1 AEx d IIB; Zone 20 AEx ta IIIC
781E: Class I, Zone 1, AEx e IIC;
TC RU C-GB.AA87.B.00487
P444949
TÜV 12.133OU
GYJ13.1139X (781D), GYJ13.1138X (781E)
03866
LRS: 01/00173
781D: -60°C to +130°C
781E: -60°C to +130°C (-20°C to +60°C Nylon)
781D: IP66 (when fitted with CMP sealing accessories)
781E: IP66
Brass, Nickel Plated Brass, Aluminium, Stainless Steel, Nylon (781E only)
Integral Entry Thread equipment interface ‘O’ ring seal, Castellated Locknut

The 781D can be used with enclosures up to 30 litres for group IIB gases and enclosures up to 2.5 litres for group IIC gases
** When CMP installation accessories are used (781E). Refer to Maintaining a Seal for further information.

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Technical Illustration

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订货编号
(781D)
订货编号
(781E)
螺纹尺寸最小螺纹长度名义安装长度F对边直径对角直径最大安装力矩(Nm)
781DM2781EM2M20 x 1.50.590.501.181.307
781DM3781EM3M25 x 1.50.590.501.421.5610
781DT1781ET1½ NPT0.780.501.181.307
781DT2781ET2¾ NPT0.800.501.421.5610
显示的所有尺寸都按英寸计,除非另有规定。
订货编号
(781D)
订货编号
(781E)
螺纹尺寸最小螺纹长度名义安装长度F对边直径对角直径最大安装力矩(Nm)
781DM2781EM2M20 x 1.515.012.730.033.07
781DM3781EM3M25 x 1.515.012.736.039.610
781DT1781ET1½ NPT19.912.730.033.07
781DT2781ET2¾ NPT20.212.736.039.610
如无特殊备注,所有尺寸单位均为毫米