# Обратный клапан — CV

> Обратный клапан для предотвращения обратного потока газов или жидкостей в измерительных контурах, подходит для применения в нефтегазовой, химической, нефтехимической и энергетической отраслях.

- Код каталога: cv
- Модель: CV
- Категория: Измерение давления › Valves and protective devices
- Страница товара: https://avigan.com.ua/wika/ru/products/cv
- Цена: по запросу
- Поставщик: AVIGAN (ООО «ВИКА Прилад»), официальный партнёр WIKA в Украине

## Описание

Обратные клапаны с моделью CV разработаны в соответствии с требованиями технологической (процессной) отрасли. Проточные (контактирующие с рабочей средой) детали специально предназначены для применений с ...

## Применение

- Oil and gas industry, chemical and petrochemical industries, power plants
- Prevents the backflow of gases or liquids in measuring circuits
- For injection systems, actuator controls, test benches, hydraulic power packs

## Особенности

- Safety factor 4:1 for pressurised parts
- One-piece, robust case construction prevents leaks
- High repeatability and bubble-tight sealing through self-centring piston
- Redundant sealing with O-ring and metal cone
- Leak-tested tightness in accordance with BS 6755 / ISO 5208 leakage rate A

## Технические характеристики

| Параметр | Значение |
|---|---|
| model | CV |
| product family | CV |
| short description | Check valve for preventing backflow of gases or liquids in measuring circuits, suitable for oil and gas, chemical, petrochemical, and power plant applications. |
| subcategory | Check valve |
| certifications | NORSOK M-630; API 598; BS6755; ISO 5208; NACE MR0175 / ISO 15156; EN 10204; NACE MR0103; NACE MR0175; MSS SP-61; DIN EN 12266-1; EN 10204 3.1; NACE MR0175/ISO 15156 |
| weight kg | 0.2 |
| languages in datasheet | en |
| pressure ranges | 0 … 690 bar; 0 … 10000 psi; 1.38 … 690 bar; 20 … 10000 psi |
| process connections | Compression fitting with ferrule; G 1/4; G 3/8; G 1/2; G 3/4; G 1; 1/4 NPT; 3/8 NPT; 1/2 NPT; 3/4 NPT; 1 NPT; NPT 1/4; NPT 3/8; NPT 1/2; NPT 3/4; NPT 1; G; NPT |
| case material | Stainless steel 316L; Duplex F51 (1.4462); Super Duplex F55 (1.4501); Hastelloy C276 (2.4819); Monel 400 (2.4360); Stainless steel 6Mo (1.4547); Alloy 625 (2.4856); Alloy 825 (2.4858) |
| wetted parts material | Stainless steel 316L; Duplex F51 (1.4462); Super Duplex F55 (1.4501); Hastelloy C276 (2.4819); Monel 400 (2.4360); Stainless steel 6Mo (1.4547); Alloy 625 (2.4856); Alloy 825 (2.4858); AISI 302 (1.4310); Inconel X-750 |
| sealing material | NBR; FKM; PTFE |
| process temp | -55 … 210 °C |

## Таблицы из даташита

### Model CV

| 1 | 2 |
|---|---|
| Standards used |  |
| Design | ■ ASME B16.34, valves - flanged, threaded and welding end ■ MSS SP-99, valves for measuring instruments ■ ASME B1.20.1, pipe threads, general purpose (inch) |
| Tests | ■ API 598, valve inspection and testing ■ ISO 5208, pressure testing of metallic valves with leakage rate A ■ MSS SP-61, pressure testing of valves ■ DIN EN 12266-1, pressure tests, test procedures and acceptance criteria for industrial valves |
| Material requirements | ■ NACE MR0175 / ISO 15156, use in H₂S-containing environments in oil and gas production ■ NORSOK M-630, specification for use in pipelines (Norway) |
| Marking | ASME B16.34, valves - flanged, threaded and welding end |
| Nominal pressure | 10,000 psi [690 bar] |
| Nominal width (DN) | ■ ¼" ■ 3/8" ■ ½" ■ ¾" ■ 1" |
| Valve bore size | ■ 5 mm[0.197 in] ■ 6 mm[0.236 in] ■ 10 mm[0.394 in] |
| Pressure-temperature limits (for diagram, see page 5) | The limits for operating pressure and temperature depend on the version and the sealing material. |
| Connection type | ■ Threaded connection per ISO 228-1, codeG ■ Threaded connection per ANSI / ASME B1.20.1, code NPT ■ Compression fitting with ferrule |
| Cracking pressure | 20 psi [1.38 bar]±30% |
| Features | ■ Sealing through self-centring piston ■ Bubble-tight shut-off ■ Flow direction marked on valve body ■ Hydrostatically tested ■ 100 %material traceability for wetted parts ■ Tight tolerances and the guided spring prevent the piston from jamming or seizing ■ Resistance against explosive decompression (AED sealing) ■ Other specification for cracking pressure (option) |

### Materials

| 1 | 2 |
|---|---|
| Wetted parts |  |
| Valve body and fittings, piston | ■ Stainless steel 316L 1) ■ Duplex F51 (1.4462) ■ Super Duplex F55 (1.4501) ■ Hastelloy C276 (2.4819) ■ Monel 400 (2.4360) ■ Stainless steel 6Mo (1.4547) ■ Alloy 625 (2.4856) ■ Alloy 825 (2.4858) |
| Spring 1) | ■ AISI 302 (1.4310) ■ Inconel X-750 |
| Sealing 2) | ■ NBR, temperature range: -55 ...+120 °C [-67 ...+248 °F] ■ FKM 3) , temperature range: -55 ...+180 °C [-67 ...+356 °F] ■ PTFE, temperature range: -55 ...+210 °C [-67 ...+410 °F] |

| 1 | Sealing material | Max. permissible operating pressure in bar at temperature in °C | Max. permissible operating pressure in bar at temperature in °C |
|---|---|---|---|
| Sealing | NBR 1) | 690 bar at 38 °C | 10,000 psi at 100 °F |
|  |  | 276 bar at 120 °C | 8,920 psi at 248 °F |
|  | FKM 2) | 690 bar at 38 °C | 10,000 psi at 100 °F |
|  |  | 543 bar at 180 °C | 7,875 psi at 356 °F |
|  | PTFE | 690 bar at 38 °C | 10,000 psi at 100 °F |
|  |  | 520 bar at 210 °C | 7,542 psi at 410 °F |

| Logo | Description |
|---|---|
| - | PMI 1) test certificate (option) All wetted parts |

| 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|
| DN | Dimensions in mm[in] | Cv in USG/min | Kv inm 3 /h | Weight in kg [lb] |  |  |
|  | A | B | Bore size |  |  |  |
| 1/4" | 59 [2.323] | 22.2 [0.875] | 5 [0.197] | 0.53 | 0.45 | 0.2 [0.44] |
| 3/8" | 64 [2.520] | 22.2 [0.875] | 6 [0.236] | 0.95 | 0.82 | 0.3 [0.66] |
| 1/2" | 76 [2.992] | 30.2 [1.187] | 10 [0.394] | 1.70 | 1.5 | 0.4 [0.88] |
| ¾" | 85 [3.346] | 34.9 [1.375] | 10 [0.394] | 1.70 | 1.5 | 0.7 [1.54] |
| 1" | 95 [3.740] | 44.5 [1.750] | 10 [0.394] | 1.70 | 1.5 | 1.2 [2.65] |

## Документация

- [ds_ac0929_en_co_8fdf17](https://avigan.com.ua/wika/docs/wika/ds_ac0929_en_co.pdf) — PDF, 399 KB, en

## Конфигуратор

У товара есть интерактивный конфигуратор на странице товара.

```
CV5CA- 10CN13-S1X-20Z-ZZ-NZZ
```