Normally open. Closing mechanism position sensor is based on solid-state relay. One-way media flow.
Specifications
| Nominal diameter (DN), mm | 10 | 15 | 20 | ||||
|---|---|---|---|---|---|---|---|
| Effective diameter, mm | 10 | 15 | 20 | ||||
| Nominal pressure (PN), kgf/cm² | 250 | ||||||
| Pressure difference (ΔP) for direct thrust, kgf/cm² | from 0 to 250 | ||||||
| Pressure difference (ΔP) for inverted thrust, kgf/cm² | not applied 1) | ||||||
| Working pressure, kgf/cm² | 320 | ||||||
| Closing mechanism sealing according to GOST R 54808 | «A» class | ||||||
| Case material | steel 14Kh17N2 | ||||||
| Time of closing mechanism opening / closing, s, not more than | 1 / 1 | ||||||
| Supply voltage |
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| Consumed power (PF / PHold), W |
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| Operation length, % | 100 | ||||||
| Activation frequency, cycle/min, not more than | 6 | ||||||
| Operational media temperature, ℃ | from -50 to +80 (short-time operation up to 100) | ||||||
| Ambient temperature, ℃ | from -50 (from -60 - on order) to +60 | ||||||
| Explosion protection marking | 1Ex d IIC T4 Gb X, Ex (ISO/DIS 80079-36) IIC T6 Gb X | ||||||
| Orientation on the pipeline | with drive facing up ±90° | ||||||
| Process connection | G1/2 2) | G3/4 2) | G1 2) | ||||
Overall dimensions, mm: | A, not more than | 217 | 217 | 217 | |||
| C, not more than | 154 | 154 | 154 | ||||
| C | 72 | 72 | 72 | ||||
| Weight, kg, not more than | 10 | ||||||
| Full service life, years | 40 | ||||||
Notes. 1) When pressure is supplied in the opposite direction, the valve will be opened. 2) Threaded coupling connection in accordance with GOST 22526-77 (other – on order) | |||||||