Skip to content
2/2 Way Diaphragm Valve with Pneumatic Position Actuator in Plastic (Type CLASSIC)
The externally controlled diaphragm valve type 2731 consists of a pneumatically operated piston actuator, a bult-in positioner,a diaphragm and a 2-way valve housing. The proven and robust actuator with plastic housing ensures use under hygienic or aggressive environmental conditions. The flow-efficient valve housing with little dead space enable high flow rates and a wide range of possible uses. The valve housing and the diaphragm are available in all common materials and designs. The actuator has a compact, autoclavable design (PPS version). The integration of automation units Top Control 8692/8693/8694 Side Control 8635/8792/8793 is possible in all expansion stages (can be retrofitted). An explosion-proof ATEX / IECEx device variant is available. The add-on housing is optionally available in plastic or stainless steel. The actuator is equipped with an integrated, optical position indicator as standard, optionally a min./max. stroke limitation can be installed.
DOWNLOAD CATALOG (ดาวน์โหลดแคตตาล็อก)
General Technical Data
Product properties |
|
| Dimensions | Detailed information can be found in chapter “4. Dimensions” on page 6. |
| Forged body (VS) | Forged stainless steel 316L/1.4435/BN2, Fe < 0.5 %/C ≤ 0.03 % |
| Tube valve body (VP) | Stainless steel 316L/1.4435/BN2 |
| Cast body (VG) | Cast stainless steel 316L/1.4435 |
| Plastic body (PV; PP; PD) | PVC (PVC-U); PP; PVDF |
| Diaphragm | EPDM (AD)1.), PTFE/EPDM (EA)1.), advanced PTFE/EPDM (EU)1.), Gylon®/EPDM laminated (ER) |
| Actuator | PA |
| Diaphragm size | 65, 80, 100 mm |
Standard surface quality |
|
| Forged body (VS)1.) | Internal electrically polished : Ra ≤ 0.38 µm (NO17)1.) (ASME BPE SF4/DIN HE4) (external forged surface electrically polished) Internal mechanically polished : Ra ≤ 0.5 µm (NO14)1.) (ASME BPE SF1) (external forged surface) |
| Tube valve body (VP)1.) | Internal electrically polished : Ra ≤ 0.38 μm (NO17)1.) (ASME BPE SF4/DIN HE4) External glass bead blasted: Ra ≤ 1.6 μm (NO01)1.) Internal glass bead blasted: Ra ≤ 1.6 μm (NO05)1.) |
| Cast body (VG)1.) | Internal electrically polished : Ra ≤ 0.6 µm (NO16)1.) (ASME BPE SF6) (external cast surface electrically polished) Internal mechanically polished : Ra ≤ 0.76 µm (NO06)1.) (ASME BPE SF3/DIN H2) (external cast surface) |
Performance data |
|
| Max. pilot pressure | 6 bar, see “5.2. Medium pressure” on page 17 |
| Pilot air ports | Thread G ¼ |
Medium data |
|
| Medium | Neutral gases and fluids, highly purified, sterile, aggressive or abrasive medium (see Resistance Chart ) |
| EPDM (AD) | – 10…+ 143 °C (steam sterilisation + 150 °C for 60 min) |
| PTFE/EPDM (EA) | – 10…+ 130 °C (steam sterilisation + 150 °C for 60 min) |
| Advanced PTFE/EPDM (EU) | – 5…+ 143 °C (steam sterilisation + 150 °C for 60 min) |
| GYLON®/EPDM laminated (ER) | – 5…+ 130 °C (steam sterilisation + 150 °C for 60 min) |
| Plastic body | See “3.2. Pressure temperature diagram for plastic body” on page 5 |
| Control medium | Neutral gases, air |
Environment and installation |
|
| Installation position/Installation | See operating manual |
| PA Actuator size ≥ 175 mm | – 10…+ 50°C5.) |
*For selecting thecorrect product please refer to the technical data, images and notes for proper use according to the data sheet, or contact Flu-Tech directly.
สอบถามข้อมูลเพิ่มเติม ติดต่อเรา :
02-384-6060 (อัตโนมัติ) [email protected] บริษัท ฟลูเทค จำกัด Flu-tech @flutech.co.th
