Burkert 00454789 Pneumatic Angle Seat Valve (Type 2000)
The Burkert 00454789 (454789) is a 2/2-way pneumatically operated angle seat valve from the Type 2000 series. Engineered with a heavy-duty stainless steel housing, an oversized 125 mm polyamide actuator, and high-integrity PTFE seat sealing, this valve delivers exceptional flow rates and maximum cycle life in demanding steam, gas, liquid, and chemical processing applications.
Technical Specifications
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Manufacturer: Burkert
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Part Number / Article Number: 00454789 (454789)
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Valve Type: Type 2000
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Circuit Function: 2/2-Way, Circuit Function A (Normally Closed by Spring Force)
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Orifice Size: DN50 (50.0 mm / 2 inch)
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Body Material: Stainless Steel
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Sealing Material: PTFE (Polytetrafluoroethylene)
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Process Connection: 2″ NPT Threaded Port
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Actuator Size / Material: 125 mm Polyamide (PA) Actuator
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Operating Pressure Range: 0.00 bar to 10.00 bar (up to 145 PSI)
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Pilot Pressure Range: 3.20 bar to 7.00 bar (46 to 100 PSI)
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Medium Temperature Range: -10.00 °C to +185.00 °C
Industrial Applications & Features
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High Flow Capacity: The angled seat design yields an outstanding $K_v$ flow value of 62 $\text{m}^3/\text{h}$, dramatically reducing line pressure drop compared to standard globe valves.
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Self-Adjusting Gland Packing: Equipped with a proven spindle packing system that maintains zero external leakage and provides long, maintenance-free operational life.
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Extreme Thermal & Chemical Resistance: Premium grade stainless steel body coupled with durable PTFE seat sealing allows reliable continuous duty with high-temperature steam and aggressive industrial media.
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Official Factory Quality: Built according to official Burkert manufacturing specifications to guarantee precise fitment, high cycle reliability, and seamless installation.
