WIKA · Pressure measurement · Family 990
Diaphragm seal with threaded connection
Diaphragm seal with threaded connection for protection of pressure measuring instruments in applications with aggressive, hot, corrosive, environmentally hazardous or toxic media.
Range
0…250 bar
EACCRN
Price
On request
Depends on configuration
Description
Diaphragm seals are used for the protection of pressure measuring instruments in applications with difficult media. In diaphragm seal systems, the diaphragm of the diaphragm seal effects the separation of the instrument and the medium. The pressure is transmitted to the measuring instrument via the system fill fluid which is inside the diaphragm seal system.
For the implementation of demanding customer applications, there are a wide variety of designs, materials and system fill fluids available.
For further technical information on diaphragm seals and diaphragm seal systems see IN 00.06 'Application, operating principle, designs'.
Diaphragm seal with threaded connection, model 990.10
The model 990.10 diaphragm seal with threaded connection in threaded design is suitable for versatile application areas. A replacement of the lower body is possible without modifications on the diaphragm seal system. With this diaphragm seal, high pressure ranges up to 250 bar can be covered.
Mounting of the diaphragm seal to the measuring instrument may be made via a direct connection, for high temperatures via a cooling element or via a flexible capillary.
For the material selection WIKA offers a variety of solutions, in which the upper body of the diaphragm seal and the wetted parts can be made of identical or different materials. The wetted parts can, as an alternative, be coated.
Special features
- Process connection with thread
- Version with internal diaphragm, diaphragm seal parts screwed together
- Large selection of process connections and materials
- Flushing connections optionally available
Identification
| Model | 990.10 |
| Product family | 990 |
| Subcategory | Diaphragm seal |
Measuring range
| Pressure ranges | 0…250 bar · 0…3600 psi |
Process conditions
| Process connection | 1 NPTM20 x 1.5G1AG13/8NPT3/4NPTG ¼ AG ⅜ AG ½ AG ¾ AG 1 ½ A¼ NPT⅜ NPT½ NPT¾ NPT1 ½ NPTR ¼R ⅜R ½R ¾G½G¼G⅜G¾G1/2AG1/4AG3/8AG3/4AG11/2AG1/2G1/4G3/8G3/41/2NPT1/4NPT11/2NPTR1/2R1/4R3/8R3/4 |
| Process temperature | ≤ +400 °C |
Materials
| Case material | Stainless steel 1.4404 (316L), Stainless steel 1.4435 (316L), Stainless steel 1.4539 (904L), Stainless steel 1.4541 (321), Stainless steel 1.4571 (316Ti), Duplex 2205 (1.4462), Superduplex 2507 (1.4410), Hastelloy C22 (2.4602), Hastelloy C276 (2.4819), Inconel 600 (2.4816), Inconel 625 (2.4856), Incoloy 825 (2.4858), Monel 400 (2.4360), Nickel 200 (2.4060, 2.4066), Titanium grade 2 (3.7035), Titanium grade 7 (3.7235) |
| Wetted parts material | Stainless steel 1.4404 (316L), Stainless steel 1.4539 (904L), Stainless steel 1.4541 (321), Stainless steel 1.4571 (316Ti), PTFE lining, ECTFE coating, Gold plating, Hastelloy C22 (2.4602), Hastelloy C276 (2.4819), Inconel 600 (2.4816), Inconel 625 (2.4856), Incoloy 825 (2.4858), Monel 400 (2.4360), Nickel 200 (2.4060, 2.4066), Titanium grade 2 (3.7035), Titanium grade 7 (3.7235), Tantalum lining, PFA (perfluoroalkoxy) coating, PFA coating, Wikaramic, Titanium grade 11 (3.7225), Tantalum, Stainless steel 1.4435 (316L), Wikaramic ® coating, Wikaramic coating, Duplex 2205 (1.4462), Superduplex 2507 (1.4410) |
| Sealing material | PTFE, Metal C spring, silver-plated stainless steel, Metal C spring, Inconel |
Certifications and approvals
| Certifications | EACCRN |
Additional details
| Datasheet languages | EN |
Tables from datasheet
| Model 990.10 | Standard | Option |
|---|---|---|
| Pressure range | 0 ... 250 bar [0 ... 3,600 psi] or all other equivalent vacuum or combined pressure and vacuum ranges | |
| 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 ) |
| 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 ■ Cooling element |
| Sealing | PTFE max. 260 °C [500 °F] | ■ Metal C spring, silver-plated stainless steel, max. 400 °C [752 °F] ■ Metal C spring, Inconel, max. 400 °C [752 °F] |
| Flushing connection | - | ■ Single flushing connection (G ¼, G⅛, ¼NPT, ⅛NPT) ■ Dual flushing connection (G ¼, G⅛, ¼NPT, ⅛NPT) ■ Plug screws |
| Design per NACE | - | ■ MR0175 ■ MR0103 |
| 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 outer Ø20 ... 80 mm, steel (see data sheet AC 09.07) |
| Standard | Male thread | Female thread | ||
|---|---|---|---|---|
| Standard | Option | Standard | Option | |
| Following DIN ISO 228-1 | G½A | G¼A G⅜A G¾A G1A G1½A | G½ | G¼ G⅜ G¾ G1 |
| Following ASME B 1.20.1 | ½NPT | ¼NPT ⅜NPT ¾NPT 1 NPT 1½NPT | ½NPT | ¼NPT ⅜NPT ¾NPT 1 NPT |
| Following DIN 13-1 | M20 x 1.5 | - | M20 x 1.5 | - |
| Following ISO 7-1 | R½ | R¼,R⅜,R¾ | - | - |
| Upper body of diaphragm seal | Wetted parts | Maximum permissible process temperature ¹⁾ in °C [°F] | |
|---|---|---|---|
| Lower body of diaphragm seal | Diaphragm | ||
| Stainless steel 1.4404 (316L) | Stainless steel 1.4404 (316L) | Stainless steel 1.4404 / 1.4435 (316L), standard version | 400 [752] |
| Stainless steel 1.4539 (904L) | Stainless steel 1.4539 (904L) | ||
| Stainless steel 1.4541 (321) | Stainless steel 1.4541 (321) | ||
| Stainless steel 1.4571 (316Ti) | Stainless steel 1.4571 (316Ti) | ||
| PTFE lining ²⁾ | ECTFE coating | 150 [302] | |
| PTFE lining ²⁾ | PFA (perfluoroalkoxy) coating, FDA | 260 [500] | |
| PTFE lining ²⁾ | PFA (perfluoroalkoxy) coating, antistatic | ||
| - | Gold plating | 400 [752] | |
| - | Wikaramic ® coating | ||
| Hastelloy C22 (2.4602) | Hastelloy C22 (2.4602) | 260 [500] | |
| Hastelloy C276 (2.4819) | Hastelloy C276 (2.4819) | 400 [752] | |
| Inconel 600 (2.4816) | Inconel 600 (2.4816) | ||
| Inconel 625 (2.4856) | Inconel 625 (2.4856) | ||
| Incoloy 825 (2.4858) | Incoloy 825 (2.4858) | ||
| Monel 400 (2.4360) | Monel 400 (2.4360) | ||
| Nickel 200 (2.4060, 2.4066) | Nickel 200 (2.4060, 2.4066) | 260 [500] | |
| Titanium grade 2 (3.7035) | Titanium grade 2 (3.7035) | 150 [302] | |
| Titanium grade 7 (3.7235) | Titanium grade 11 (3.7225) | ||
| Tantalum lining ²⁾ | Tantalum | 300 [572] | |
| Stainless steel 1.4435 (316L) | Stainless steel 1.4435 (316L) | Stainless steel 1.4435 (316L) | 400 [752] |
| Stainless steel 1.4539 (904L) | Stainless steel 1.4539 (904L) | Stainless steel 1.4539 (904L) | |
| Stainless steel 1.4541 (321) | Stainless steel 1.4541 (321) | Stainless steel 1.4541 (321) | |
| Stainless steel 1.4571 (316Ti) | Stainless steel 1.4571 (316Ti) | Stainless steel 1.4571 (316Ti) | |
| Duplex 2205 (1.4462) | Duplex 2205 (1.4462) | Duplex 2205 (1.4462) | 300 [572] |
| Superduplex 2507 (1.4410) | Superduplex 2507 (1.4410) | Superduplex 2507 (1.4410) | |
| Hastelloy C22 (2.4602) | Hastelloy C22 (2.4602) | Hastelloy C22 (2.4602) | 400 [752] |
| Hastelloy C276 (2.4819) | Hastelloy C276 (2.4819) | Hastelloy C276 (2.4819) | |
| Inconel 600 (2.4816) | Inconel 600 (2.4816) | Inconel 600 (2.4816) | |
| Inconel 625 (2.4856) | Inconel 625 (2.4856) | Inconel 625 (2.4856) | |
| Incoloy 825 (2.4558) | Incoloy 825 (2.4858) | Incoloy 825 (2.4858) | |
| Monel 400 (2.4360) | Monel 400 (2.4360) | Monel 400 (2.4360) | |
| Nickel 200 (2.4060, 2.4066) | Nickel 200 (2.4060, 2.4066) | Nickel 200 (2.4060, 2.4066) | |
| Titanium grade 2 (3.7035) | Titanium grade 2 (3.7035) | Titanium grade 2 (3.7035) | |
| Titanium grade 7 (3.7235) | Titanium grade 7 (3.7235) | Titanium grade 11 (3.7225) |
| Logo | Description | Country |
|---|---|---|
| EAC (option) Pressure equipment directive | Eurasian Economic Community | |
| - | MTSCHS (option) Permission for commissioning | Kazakhstan |
| - | CRN Safety (e.g. electr. safety, overpressure, ...) | Canada |
View all (9)
| G | Dimensions in mm[in] | |||
|---|---|---|---|---|
| h | h₁ | Mb | SW | |
| G ¼ A | 13 [5.512] | 29.5 [1.161] | 52 [2.047] | 27 [1.063] |
| G⅜A | 16 [0.63] | 32.5 [1.28] | ||
| G ½ A | 20 [0.787] | 36.5 [1.437] | ||
| G ¾ A | 43 [1.693] | 41 [1.614] | ||
| G 1 A | 28 [1.102] | 51 [2.008] | ||
| G 1 ½ A | 58.5 [2.303] | |||
| ¼ NPT | 13 [5.512] | 29.5 [1.161] | 27 [1.063] | |
| ⅜NPT | 15 [0.591] | 31.5 [1.24] | ||
| ½ NPT | 19 [0.748] | 35.5 [1.398] | ||
| ¾ NPT | 20 [0.787] | 36.5 [1.437] | ||
| 1 NPT | 25 [0.984] | 48 [1.98] | 41 [1.614] | |
| 1 ½ NPT | 26 [1.024] | 56.5 [2.224] | ||
| M20 x 1.5 | 20 [0.787] | 36.5 [1.437] | 27 [1.063] | |
| R ¼ | 15 [0.591] | 31.5 [1.28] | ||
| R ⅜ | 18 [0.709] | 34.5 [1.358] | ||
| R ½ | 19 [0.748] | 35.5 [1.398] | ||
| R ¾ | 20 [0.787] | 36.5 [1.437] |
| G | Dimensions in mm[in] | |||
|---|---|---|---|---|
| h | h 1 | Mb | SW | |
| G ¼ | 10 [0.394] | 16.5 [0.65] | 52 [2.047] | 27 [1.063] |
| G⅜ | 12 [0.472] | |||
| G ½ | 14 [0.551] | |||
| G ¾ | 16 [0.63] | 22.5 [0.886] | 32 [1.26] | |
| G 1 | 18 [0.709] | 24.5 [0.965] | 41 [1.614] | |
| ¼ NPT | - | 16.5 [0.65] | 27 [1.063] | |
| ⅜ NPT | ||||
| ½ NPT | ||||
| ¾ NPT | 20.5 [0.807] | 32 [1.26] | ||
| 1 NPT | 28.5 [1.122] | 41 [1.614] | ||
| M20 x 1.5 | 15.5 [0.61] | 18.5 [0.728] | 27 [1.063] |
| 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 |
Industry
Chemistry / Pharma
Process industry
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