PN25
The BURKERT 20137594 Type 2100 is a pneumatically operated 2/2-way angle seat valve specially optimized for decentralized process automation. It fulfills the tough criteria in process environments. Its unique design allows easy integration of automation units in all expansion stages, from electrical/optical position feedback to pneumatic control and integrated fieldbus interface. Maximum service life and tightness are achieved by the proven self-adjusting V-seal packing gland. The highly integrated system of valve and automation unit is characterized by its compact and smooth design, integrated pilot air ducts, protection classes IP65/67, NEMA Type 4X, and high resistance to chemicals.
Features
- High flow rates
- Long service life
- Easy integration of automation units with ELEMENT
- Flow-optimized stainless steel valve body with sleeve, clamp or weld connection
- Suitable for steam
Product Overview
| No. | Description | No. | Description |
|---|---|---|---|
| 1 | Transparent cap with position | 2 | Actuator cover |
| 3 | Actuator housing | 4 | Relief bore |
| 5 | Valve body | 6 | Flow direction marking |
| 7 | Port connection | 8 | Body connection |
| 9 | Actuator connection | 10 | Pilot air port 1 |
| 11 | Pilot air port 2 |
Product Identification
| No. | Description | No. | Description |
|---|---|---|---|
| 1 | Type | 2 | Control function |
| 3 | Sealing material | 4 | Flow coefficient |
| 5 | Maximum medium temperature | 6 | Manufacture code |
| 7 | Derating see operating instructions | 8 | Flow direction |
| 9 | Article number | 10 | Maximum operating pressure |
General Technical Data
| Product properties | Description |
|---|---|
| Design | Angle seat valve |
| Nominal diameter | DN 10...DN 80, NPS 3/8...NPS 3 (SKU 20137594 is DN 40) |
| Safety setting | Normally closed (control function A), normally open (control function B) |
| Flow direction | Flow to open (below seat), flow to close (above seat) |
| Operating pressure | 0 bar(g)...25 bar(g), vacuum variants...-0.9 bar(g) (SKU 20137594 is 0-16 bar) |
| Nominal pressure | PN 25 (DIN EN 1333), Class 150 (DIN EN 1759) |
| Pilot pressure | 2.5 bar(g)...10 bar(g) |
| Seat leakage | Leakage rate A (DIN EN 12266-1), seat seal PTFE and PEEK, test medium air |
| Operating medium | Steam, water, neutral gases, alcohols, oils, fuels, hydraulic fluids, salt solutions, alkalis, organic solvents, oxygen and fuel gases |
| Medium temperature | -40 °C...+230 °C (SKU 20137594 is -10 °C to 85 °C) |
| Viscosity | Max. 600 mm²/s |
| Control medium | Air, neutral gases |
| Ambient temperature | -10 °C...+100 °C |
| Degree of protection | IP65/67 |
| Installation position | As required, preferably with actuator in upright position |
Materials
| Element | Material |
|---|---|
| Actuator cover | PPS |
| Actuator casing | Stainless steel 1.4561 (316Ti) |
| Piston seal | FKM |
| Spring | Stainless steel 1.4310 |
| Packing gland | PTFE V-Rings (filled), with spring compensation |
| Spindle | Stainless steel 1.4401 (316)/1.4404 (316L) |
| Spindle guide | PEEK |
| Swivel plate | Stainless steel 1.4401 (316)/1.4404 (316L) |
| Seat seal | PTFE, PEEK (Option) |
| Valve body | Stainless steel CF3M |
Principle of Operation
Flow Direction Below the Seat
Only use flow direction below the seat for liquid media, gases, and vapours. As the medium is present under the swivel plate, the operating pressure contributes to the opening of the valve.
Flow Direction Above the Seat
Only use flow direction above the seat for gases and vapours, and valves with control function A (closed by spring force in rest position). As the medium is present above the swivel plate, the operating pressure contributes to the closing of the valve. The operating pressure also supports the sealing of the valve seat.
WARNING
Risk of damage due to bursting pipes and bursting equipment when the flow is above the seat. In the case of liquid mediums, water hammer can occur causing pipes and the device to burst. Do not use valves with flow above the seat for liquid mediums.
Approvals and Conformities
- Explosion Protection: EPS 18 ATEX 2 008 X II 2G Ex h IIC T4…T2 Gb / II 2D Ex h IIIC T135 °C…T300 °C Db. IECEx EPS 18.0007X.
- Drinking Water: Suitable for use in drinking water applications. The materials comply with the assessment principles (UBA) for materials in contact with drinking water (TrinkwasserV).
- Foods and Beverages/Hygiene: FDA – Code of Federal Regulations, USP (United States Pharmacopeial Convention), EC Regulation 1935/2004.
DANGER
Explosion Hazard due to Electrostatic Charging! If the device is used in a potentially explosive atmosphere, ensure proper grounding of the actuator and valve body to prevent electrostatic discharge. Follow all ATEX/IECEx guidelines provided in the supplementary instructions.
Related Products
Explore similar products in our catalog
