Type 2032
BURKERT 20092497 Type 2933 manually operated diaphragm valve consists of a manually operated actuator, a diaphragm, and a 2-way valve body. The manual actuator with a plastic or stainless steel handwheel is available with a diaphragm bonnet made of stainless steel or plastic, ensuring reliable use in hygienic or aggressive ambient conditions. The flow-optimised valve body with minimum dead space enables high flow values and a wide range of possible applications. The actuator features a compact, autoclavable design and is equipped with an integrated visual position indicator, a reproducible stroke scale, and an adjustable closing limiter.
General Technical Data
| Product Properties | Description |
|---|---|
| Forged steel valve body (VS) | Forged stainless steel 316L/1.4435 BN2 in accordance with DIN EN 10222-5, ASTM A182/A182M, and ASME BPE |
| Diaphragm | EPDM high-temperature (AD), PTFE/EPDM (EA), advanced PTFE/EPDM (EU), laminate of GYLON® and EPDM (ER) |
| Actuator | Stainless steel/PPS, PPS/PPS, stainless steel/stainless steel |
| Standard surface quality (VS) | Internally electrically polished: Ra ≤ 0.38 μm (ASME BPE SF4 / DIN HE4). Internally mechanically polished: Ra ≤ 0.5 μm (ASME BPE SF1) |
| Operating medium | Neutral gases and liquids, highly purified, sterile, aggressive or abrasive mediums |
| Medium temperature (EPDM) | -10 to +143 °C (steam sterilisation +150 °C for 60 min) |
| Ambient temperature | -10 to +130 °C (short-term up to +150 °C), autoclavable |
Approvals and Conformities
- FDA: The diaphragms made of EPDM, PTFE/EPDM, advanced PTFE/EPDM, and laminate of GYLON® and EPDM comply with the Code of Federal Regulations published by the FDA.
- USP: Diaphragms are tested according to United States Pharmacopeial Convention (USP) Class VI.
- EC Regulation 1935/2004: Diaphragms are suitable for use with food and beverages.
- 3-A Sanitary Standards: Products comply with 3-A SSI as per certificate (valid for variable code PE05).
- Explosion Protection: ATEX / IECEx as a category 2 device suitable for zone 1/21 and zone 2/22 (valid for variable code PX51).
Materials
| No. | Element | Material |
|---|---|---|
| 1 | Handwheel | Polyphenylene sulphide (PPS), stainless steel 1.4308 |
| 2 | Visual position indicator | Polyamide (PA), Stainless steel 1.4305 |
| 3 | Valve spindle | Stainless steel 1.4305 |
| 4 | Diaphragm bonnet | Stainless steel 1.4308, polyphenylene sulphide (PPS) |
| 5 | Diaphragm | EPDM (AD), PTFE/EPDM (EA), advanced PTFE/EPDM (EU), laminate of GYLON® and EPDM (ER) |
Dimensions
INFO
Dimensions in mm, unless otherwise stated. Further information on the draining angle can be found in the supplementary instructions.
Forged Steel Valve Body (VS) with Welded Connection
DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B
| Diaphragm size | Port connection DN | ∅D1 | s | L | h | H |
|---|---|---|---|---|---|---|
| 8 | 8 | 13.5 | 1.6 | 90 | 9.3 | 18.8 |
| 15 | 10 | 17.2 | 1.6 | 110 | 12.05 | 23.75 |
| 20 | 20 | 26.9 | 1.6 | 119 | 16.0 | 30.3 |
| 25 | 25 | 33.7 | 2.0 | 129 | 19.0 | 37.0 |
| 40 | 40 | 48.3 | 2.0 | 161 | 27.6 | 52.4 |
| 50 | 50 | 60.3 | 2.0 | 192 | 35.5 | 68.3 |
Forged Steel Valve Body (VS) with Clamp Connection
ASME BPE
| Diaphragm size | Port connection Inch | ∅D1 | s | ∅D2 | L | h | H |
|---|---|---|---|---|---|---|---|
| 8 | 1/2" | 12.7 | 1.65 | 25.0 | 89 | 9.3 | 18.8 |
| 15 | 3/4" | 19.05 | 1.65 | 25.0 | 89 | 12.05 | 23.75 |
| 20 | 3/4" | 19.05 | 1.65 | 25.0 | 117 | 16.0 | 30.3 |
| 25 | 1" | 25.4 | 1.65 | 50.5 | 114 | 19.0 | 37.0 |
| 40 | 1 1/2" | 38.1 | 1.65 | 50.5 | 140 | 27.6 | 52.4 |
| 50 | 2" | 50.8 | 1.65 | 64.0 | 159 | 35.5 | 68.3 |
Tube Valve Body (VP) with Welded Connection
DIN EN ISO 1127 / ISO 4200 / DIN 11866 series B
| Diaphragm size | Port connection DN | ∅D1 | s | L | h | H |
|---|---|---|---|---|---|---|
| 8 | 8 | 13.5 | 1.6 | 90 | 9.85 | 16.6 |
| 15 | 15 | 21.3 | 1.6 | 110 | 14.35 | 25.0 |
| 20 | 20 | 26.9 | 1.6 | 119 | 17.15 | 30.45 |
| 25 | 25 | 33.7 | 2.0 | 129 | 20.55 | 37.4 |
| 40 | 40 | 48.3 | 2.0 | 161 | 29.35 | 53.5 |
| 50 | 50 | 60.3 | 2.0 | 192 | 35.35 | 65.5 |
Tube Valve Body (VP) with Clamp Connection
DIN 32676 series B (ISO pipe)
| Diaphragm size | Port connection DN | ∅D1 | s | ∅D2 | L | h | H |
|---|---|---|---|---|---|---|---|
| 8 | 8 | 13.5 | 1.6 | 25.0 | 89 | 9.85 | 22.35 |
| 15 | 15 | 21.3 | 1.6 | 50.5 | 110 | 14.35 | 39.60 |
| 20 | 20 | 26.9 | 1.6 | 50.5 | 119 | 17.15 | 42.40 |
| 25 | 25 | 33.7 | 2.0 | 50.5 | 129 | 20.55 | 45.80 |
| 40 | 40 | 48.3 | 2.0 | 64.0 | 161 | 29.35 | 61.35 |
| 50 | 50 | 60.3 | 2.0 | 77.5 | 192 | 35.35 | 74.10 |
Performance Specifications
Flow Characteristics (Kv value water)
| Diaphragm size | Port connection DN | Forged Body (VS) Kv [m³/h] | Tube Body (VP) Kv [m³/h] |
|---|---|---|---|
| 8 | 8 | 1.5 | 1.9 |
| 15 | 15 | 6.5 | 7.2 |
| 20 | 20 | 12.5 | 13.5 |
| 25 | 25 | 18.0 | 20.8 |
| 40 | 40 | 41.0 | 47.9 |
| 50 | 50 | 66.0 | 69.7 |
Medium Pressure and Tightening Torques
WARNING
The following tightening torques refer to the static media pressures specified. Excessive torque can shorten the service life of the diaphragm. A tolerance of +10% applies.
| Diaphragm size | Max static operating pressure [bar] | Tightening torque EPDM/FKM [Nm] | Tightening torque PTFE [Nm] |
|---|---|---|---|
| 8 | 10 | 0.6 | 1.1 |
| 15 | 10 | 0.8 | 1.7 |
| 20 | 10 | 0.9 | 3.0 |
| 25 | 10 | 1.2 | 3.5 |
| 40 | 10 | 4.5 | 7.0 |
| 50 | 10 | 6.0 | 11.0 |
Pressure Temperature Diagram
Operating Instructions
Installation
TIP
It is the responsibility of the installer and the operator to ensure self-draining. The angle of inclination should correspond to the angle of inclination of the pipeline (recommended according to ASME BPE).
- Preparatory work: Clear impurities from pipelines (seal material, metal chips, etc.). Support and align pipelines.
- Welding: Dismantle the actuator and diaphragm before welding the valve body to prevent damage. After welding, smooth the body surface if necessary and clean thoroughly.
- Assembly: Place the actuator together with the diaphragm on the valve body. Slightly tighten the fastening screws crosswise. Close and open the diaphragm valve twice to position the diaphragm correctly. Close the valve again and open by about 20%, then tighten each fastening screw in 3 stages crosswise to the specified torque.
Setting Stroke Limit
A minimum stroke limit can be set for Type 2933. This setting also serves as a closing limiter to protect the diaphragm.
- Turn the handwheel clockwise to move the valve to the closed position.
- Loosen the screw on the handwheel (hexagon socket, width across flats 2) and remove the handwheel.
- Screw the hexagon nut as far as it will go to set the minimum stroke.
- Mount the handwheel on the actuator, ensuring the square on the spindle and the hexagon head of the nut are correctly aligned.
- Tighten the screw on the handwheel with 0.9 Nm.
Maintenance
DANGER
Risk of injury due to high pressure and escaping medium. Switch off the pressure before working on the device or system. Vent or empty the lines.
- After the first steam sterilisation, or when required, retighten the fastening screws crosswise.
- After a maximum of 10⁵ switching cycles, check the diaphragm for wear. Muddy and abrasive media require correspondingly shorter inspection intervals.
- Inspect the relief bore regularly for any medium leakages. Change the diaphragm if there is escaping medium.
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