Type 2935 Tank Bottom Diaphragm Valve
The Type 2935 manually operated diaphragm valve is designed for hygienic and aggressive environments, featuring a compact, autoclavable design. It includes a diaphragm bonnet made of stainless steel or plastic and ensures high flow rates with minimal dead space.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material Block body (VH) | Stainless steel block material 1.4435 according to DIN EN 10088 and 316L according to ASTM A479/A479M |
| Material Block body (VI) | Stainless steel block material 1.4435 according to DIN EN 10088 and 316L according to ASME BPE (Table MM-2.11, Ed. 2024) |
| Material Diaphragm | EPDM (AD), PTFE/EPDM (EA), advanced PTFE/EPDM (EU), laminate of GYLON® and EPDM (ER) |
| Material Actuator | Stainless steel/PPS, PPS/PPS, stainless steel/stainless steel |
| Standard surface quality Block body (VH/VH) | Internally electrically polished: Ra ≤0.38μm (NO17) (ASME BPE SF4/DIN HE4) |
| Standard surface quality Block body (VH/VH) external | Ra ≤1.6μm |
| Standard surface quality Block body (VH/VH) mechanically polished | Ra ≤0.5μm (NO14) (ASME BPE SF1) |
| Medium temperature EPDM (AD) | -10...+143°C (steam sterilisation +150°C for 60 min) |
| Medium temperature PTFE/EPDM (EA) | -10...+130°C (steam sterilisation +140°C for 60 min) |
| Medium temperature Advanced PTFE/EPDM (EU) | -5...+143°C (steam sterilisation +150°C for 60 min) |
| Medium temperature Laminate of GYLON® and EPDM (ER) | -5...+130°C (steam sterilisation +140°C for 60 min) |
| Port connection nominal diameter | DN06...DN100 (¼''...4'') |
| Port connection Welded connection | DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B, DIN 11850 - 2 / DIN 11866 series A / DIN EN 10357 series A, ASME BPE / DIN 11866 series C |
| Port connection Clamp connection | DIN 32676 series A (DIN pipe), DIN 32676 series B (ISO pipe), ASME BPE |
| Installation Position | See operating instructions Type 2935 |
| Ambient temperature Actuator (diaphragm bonnet/handwheel) | -10...+130°C (short-term up to +150°C), autoclavable |
| Explosion protection ATEX | EPS 18 ATEX 2 008 X, II 2G Ex IIC T4...T2 Gb, II 2D Ex IIIC T135°C...T300°C Db |
| Explosion protection IECEx | IECEx EPS 18.0007X, Ex h IIC T4...T2 Gb, Ex h IIIC T135°C...T300°C Db |
| Temperature class T2 | Maximum surface temperature +300°C, Ambient temperature -40...+130°C, Maximum medium temperature +285°C |
| Temperature class T3 | Maximum surface temperature +200°C, Ambient temperature -40...+130°C, Maximum medium temperature +185°C |
| Temperature class T4 | Maximum surface temperature +135°C, Ambient temperature -40...+100°C, Maximum medium temperature +125°C |
| Food and beverage hygiene 3-A Sanitary Standards Inc. | Valid for the variable code PE05 |
| Food and beverage hygiene FDA | The diaphragms made of EPDM (AD), PTFE/EPDM (EA), advanced PTFE/EPDM (EU) and laminate of GYLON® and EPDM (ER) comply with the Code of Federal Regulations published by the FDA (Food and Drug Administration, USA). |
| Food and beverage hygiene USP | The diaphragms made of EPDM (AD), PTFE/EPDM (EA), advanced PTFE/EPDM (EU) and laminate of GYLON® and EPDM (ER) are tested according to USD Class VI. |
| Food and beverage hygiene EC Regulation 1935/2004 | The diaphragms made of EPDM (AD), PTFE/EPDM (EA), advanced PTFE/EPDM (EU) and laminate of GYLON® and EPDM (ER) are suitable for use with food and beverages. |
| Other approvals TA Luft | Technical instruction on air quality control (valid for the variable code PM01) |
| Dimensions Diaphragm size 8 | H1: 54mm, H2: 49mm, ØB: 35mm |
| Dimensions Diaphragm size 15 | H1: 84mm, H2: 78mm, ØB: 45mm |
| Dimensions Diaphragm size 20 | H1: 95mm, H2: 86mm, ØB: 45mm |
| Dimensions Diaphragm size 25 | H1: 101mm, H2: 90mm, ØB: 45mm |
| Dimensions Diaphragm size 40 | H1: 134mm, H2: 116mm, ØB: 110mm |
| Dimensions Diaphragm size 50 | H1: 149mm, H2: 125mm, ØB: 110mm |
| Dimensions Diaphragm size 65 | H1: 182mm, H2: 152mm, ØB: 272mm |
| Dimensions Diaphragm size 80 | H1: 205mm, H2: 163mm, ØB: 272mm |
| Dimensions Diaphragm size 100 | H1: 207mm, H2: 161mm, ØB: 272mm |
| Performance specifications Diaphragm size 8 | Maximum static operating pressure: 10bar, Tightening torque for maximum static operating pressure EPDM, FKM: 0.6Nm, Tightening torque for maximum static operating pressure PTFE/EPDM, advanced PTFE/EPDM, laminate of GYLON® and EPDM: 1.1Nm |
| Performance specifications Diaphragm size 15 | Maximum static operating pressure: 10bar, Tightening torque for maximum static operating pressure EPDM, FKM: 0.8Nm, Tightening torque for maximum static operating pressure PTFE/EPDM, advanced PTFE/EPDM, laminate of GYLON® and EPDM: 1.7Nm |
| Performance specifications Diaphragm size 20 | Maximum static operating pressure: 10bar, Tightening torque for maximum static operating pressure EPDM, FKM: 0.9Nm, Tightening torque for maximum static operating pressure PTFE/EPDM, advanced PTFE/EPDM, laminate of GYLON® and EPDM: 1.7Nm |
| Performance specifications Diaphragm size 25 | Maximum static operating pressure: 10bar, Tightening torque for maximum static operating pressure EPDM, FKM: 1.2Nm, Tightening torque for maximum static operating pressure PTFE/EPDM, advanced PTFE/EPDM, laminate of GYLON® and EPDM: 3.5Nm |
| Performance specifications Diaphragm size 32 | Maximum static operating pressure: 10bar, Tightening torque for maximum static operating pressure EPDM, FKM: 2.5Nm, Tightening torque for maximum static operating pressure PTFE/EPDM, advanced PTFE/EPDM, laminate of GYLON® and EPDM: 4Nm |
| Performance specifications Diaphragm size 40 | Maximum static operating pressure: 10bar, Tightening torque for maximum static operating pressure EPDM, FKM: 4.5Nm, Tightening torque for maximum static operating pressure PTFE/EPDM, advanced PTFE/EPDM, laminate of GYLON® and EPDM: 7Nm |
| Performance specifications Diaphragm size 50 | Maximum static operating pressure: 10bar, Tightening torque for maximum static operating pressure EPDM, FKM: 6Nm, Tightening torque for maximum static operating pressure PTFE/EPDM, advanced PTFE/EPDM, laminate of GYLON® and EPDM: 11Nm |
| Performance specifications Diaphragm size 65 | Maximum static operating pressure: 10bar, Tightening torque for maximum static operating pressure EPDM, FKM: 8Nm, Tightening torque for maximum static operating pressure PTFE/EPDM, advanced PTFE/EPDM, laminate of GYLON® and EPDM: 21Nm |
| Performance specifications Diaphragm size 80 | Maximum static operating pressure: 10bar, Tightening torque for maximum static operating pressure EPDM, FKM: 12Nm, Tightening torque for maximum static operating pressure PTFE/EPDM, advanced PTFE/EPDM, laminate of GYLON® and EPDM: 23Nm |
| Performance specifications Diaphragm size 100 | Maximum static operating pressure: 10bar, Tightening torque for maximum static operating pressure EPDM, FKM: 13Nm, Tightening torque for maximum static operating pressure PTFE/EPDM, advanced PTFE/EPDM, laminate of GYLON® and EPDM: 24Nm |
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