# حاجز غشائي لوصلة التوصيل بالفلنجة — 990.49

> وصلة ملولبة بغطاء/حجاب ممتد، لتطبيقات اليوريا

- رمز الكتالوج: 990_49
- الطراز: 990.49
- الفئة: قياس الضغط › Diaphragm seals
- صفحة المنتج: https://avigan.com.ua/wika/ar/products/990_49
- السعر: عند الطلب
- المورد: AVIGAN (TOV VIKA Prylad)، الشريك الرسمي لشركة WIKA في أوكرانيا

## نظرة عامة

للمواد المسببة للتآكل وتطبيقات اليوريا: غشاء 990.49 مانع للتسرب لِوصلة الفلنجة بتصميم ملولب مع امتداد. مع سبيكة فولاذ لليوريا ...

## التطبيقات

- Aggressive, crystallising, corrosive or hot media
- Fertiliser industry
- Urea applications
- Thick-walled or insulated pipelines and vessels

## المزايا

- Threaded diaphragm seal with extended welded diaphragm
- Special steel alloy for urea synthesis
- Dimensions following Snamprogetti ® standard (Snamprogetti ® is a registered trademark of Saipem S.p.a.)

## المواصفات الفنية

| المعيار | القيمة |
|---|---|
| model | 990.49 |
| product family | 990 |
| short description | Diaphragm seal for flange connection, threaded type with extended diaphragm, designed for urea applications and aggressive, crystallising, corrosive or hot media. |
| subcategory | Diaphragm seal |
| certifications | EN 10204 |
| languages in datasheet | en |
| pressure ranges | 0 … 221 bar; 0 … 268 bar; 0 … 292 bar; 0 … 3205 psi; 0 … 3887 psi; 0 … 4235 psi |
| process connections | G ½; G ¼; ½ NPT; ¼ NPT; G½; G¼; ½NPT; ¼NPT; G1/2; G1/4; 1/2 NPT; 1/4 NPT |
| case material | Stainless steel 1.4435 (316L); Stainless steel 1.4466 |
| wetted parts material | Stainless steel 1.4466 |
| process temp | -20 … 400 °C |

## جداول ورقة البيانات

| Model 990.49 | Standard | Option |
|---|---|---|
| Pressure/temperature operating limit | ■ 221 bar [3,205 psi] / 250 °C [482 °F] ■ 268 bar [3,887 psi] / 160 °C [320 °F] ■ 292 bar [4,235 psi] / 80 °C [176 °F] | on request |
| Material | see material design page 3 | Material test according to Snamprogetti ® specification CR.UR.510 rev.3 from RTM BREDA S.r.l. |
| Level of cleanliness of wetted parts | Oil and grease free per ASTM G93-03 level FWIKA standard (< 1,000 mg/m²) | ■ Oil and grease free per ASTM G93-03 level D and ISO 15001 (< 220 mg/m 2 ) ■ Oil and grease free per ASTM G93-03 level C and ISO 15001 (< 66 mg/m²) |
| Origin of wetted parts | International | ■ EU ■ CH ■ USA |
| Connection to the measuring instrument | Axial adapter | Axial adapter with G½, G¼, ½NPTor ¼NPT(female) |
| Type of mounting | Direct mounting | ■ Capillary ¹⁾ ■ Cooling element |
| Threaded flange | - | Stainless steel 1.4435 (316L) |
| Vacuum service (see IN 00.25) | Basic service | ■ Premium service ■ Advanced service |
| Instrument mounting bracket (only for capillary option) | - | ■ Form H per DIN 16281, 100 mm, aluminium, black ■ Form H per DIN 16281, 100 mm, stainless steel ■ Bracket for pipe mounting, for pipe Ø20 ... 80 mm, steel (see data sheet AC 09.07) |

| Material | Unified numbering system (UNS) |
|---|---|
| Stainless steel 316L (1.4404 or 1.4435) | S31603 |
| Stainless steel 904L (1.4539) | N08904 |
| Stainless steel 321 (1.4541) | S32100 |
| Stainless steel 316Ti (1.4571) | S31635 |
| Stainless steel 1.4466 (urea grade) | S31050 |
| Duplex 2205 (1.4462) | S31803 |
| Superduplex 1.4410 | S32750 |
| Tantalum (also lining) | R05200 |
| Hastelloy C276 (2.4819) | N01276 |
| Hastelloy C22 (2.4602) | N06022 |
| Inconel 600 (2.4816) | N06600 |
| Incoloy 825 (2.4858) | N08825 |
| Inconel 625 (2.485) | N06625 |
| Monel 400 (2.4360) | N04400 |
| Nickel 200 (2.4066) | N02200 |
| Nickel 201 (2.4068) | N02201 |
| Titanium 3.7035 (class 2) | R50400 |
| Titanium 3.7235 (class 7) | R52400 |
| Zirconium GR702 | R60702 |

| Designation | Identi- fication number | Solidi- fication point | Boiling/ degradation point | Density at 25 °C | Kin.Viscosity at 25 °C | Remark |
|---|---|---|---|---|---|---|
| KN | °C | °C | g/cm³ | cSt |  |  |
| Silicone oil | 2 | -45 | +300 | 0.96 | 54.5 | Universal application |
| Glycerine | 7 | -35 | +240 | 1.26 | 759.6 | FDA 21 CFR 182.1320 |
| Silicone oil | 17 | -90 | +200 | 0.92 | 4.4 | Low temperatures |
| Halocarbon | 21 | -60 | +175 | 1.89 | 10.6 | Oxygen 1) and chlorine |
| Methylcyclopentane | 30 | -130 | +60 | 0.74 | 0.7 | For very low temperatures |
| High-temperature silicone oil | 32 | -25 | +400 | 1.06 | 47.1 | For high temperatures |
| Neobee® M-20 | 59 | -35 | +260 | 0.92 | 10.0 | FDA 21 CFR 172.856, 21 CFR 174.5 |
| DI water | 64 | +4 | +85 | 1.00 | 0.9 | For ultrapure media |
| Silicone oil | 68 | -75 | +250 | 0.93 | 10.3 |  |
| DI water/propanol mixture | 75 | -30 | +60 | 0.92 | 3.6 | For ultrapure media |
| Medicinal white mineral oil | 92 | -15 | +260 | 0.85 | 45.3 | FDA 21 CFR 172.878, 21 CFR 178.3620(a); USP, EP, SP |

| Maximum temperature | Maximum oxygen pressure |
|---|---|
| to 60 °C | 50 bar |
| > 60 °C to 100 °C | 30 bar |
| > 100 °C to 175 °C | 25 bar |

## المستندات

- [ds_ds9946_en_co_4aa22c](https://avigan.com.ua/wika/docs/wika/ds_ds9946_en_co.pdf) — PDF, 405 KB, en
- [ds_in0006_en_co_af8b01](https://avigan.com.ua/wika/docs/wika/ds_in0006_en_co.pdf) — PDF, 1239 KB, en