PURPOSE AND SCOPE OF APPLICATION
Explosion-proof fitting joints are used in electrical pipe systems in areas, where explosion can occur. They ensure independent rotation and help to connect pipes, boxes and other elements of electrical pipe systems. TSVVA are fitting joints that consist of three parts (female/male thread).
Scope of application – underground mines and pits hazardous with gas (methane), coal dust; outdoor and indoor hazardous areas as per explosion protection marking, GOST 30852.13-2002 (IEC 60079-14:1996), ch. 7.3 of Electrical Installations Design Code, ch. 7.4. of Electrical Installations Design Code, other normative documents regulating the application of electrical equipment in hazardous and non-hazardous areas at dangerous production facilities of I, II, III, IV hazard class supervised by Rostechnadzor of the RF and national technical supervision bodies of the Customs Union and CIS countries.
Marking:
1Ex db IIC Gb 1Ex db IIB Gb 1Ex e IIC Gb 2Ex nR IIC Gc Ex tb IIIC Db Ex db IIC Gb U Ex db IIB Gb U Ex e IIC Gb U Ex nR IIC Gc U Ex tb IIIC Db U РВ Ex db I Mb РП Ex e I Mc Ex db I Mb U Ex e I Mc U
1 - body with female thread
2 - nut
3 - ring with female thread
| Dimension type | Thread, N | H, mm | S, mm | AC, mm | AC1, mm | Mass, kg |
| TSVVA1 | 1/2" | 67 | 36 | 32 | 30 | 0,170 |
| TSVVA2 | 3/4" | 67 | 41 | 36 | 32 | 0,200 |
| TSVVA3 | 1" | 72 | 51 | 45 | 40 | 0,315 |
| TSVVA4 | 1 1/4" | 77 | 70 | 60 | 60 | 0,820 |
| TSVVA5 | 1 1/2" | 80 | 75 | 70 | 65 | 1,020 |
| TSVVA6 | 2" | 80 | 94 | 85 | 75 | 1,390 |
| TSVVA7 | 2 1/2" | 86 | 117 | 108 | 100 | 2,520 |
| TSVVA8 | 3" | 86 | 132 | 121 | 108 | 2,900 |
| TSVVA9 | 3 1/2" | 99 | 152 | 145 | 135 | 3,700 |
| TSVVA10 | 4" | 99 | 152 | 145 | 135 | - |
| Х | X | X | X | / | Х | – TU 3400-007-72453807-07 | |||
| Type of element: TSVVA | |||||||||
| Dimension type | |||||||||
| Type of thread: Taper inch NPT - N; Metric GOST 24705 - M; Taper pipe GOST 6211-81 - R; Pipe cylindrical GOST 6357-81 - G |
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| Material: Nickel-plated brass - NK; Stainless steel - N; Galvanized steel - О | |||||||||
| Options, accessories and versions |
Example: TSVVA4MN-TU 3400-007-72453807-07
