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E5391

Product catalog summary

General Specifications
The Piston Valve Type E5391 PN40 is designed for dimensions ranging from DN15 to DN200 with a pressure rating of PN40. It features flanged connections and is constructed with a cast steel GS-C25 body and stainless steel internal components. The face-to-face dimensions comply with EN 558:2000 Series 1 (DIN 3202 - F1).

Description
The valve boasts a reliable self-cleaning construction where the piston slides between two sealing rings, effectively removing sediments. It is particularly suitable for applications involving steam, hot water, hot oil, dry gas, condensate, and alternating temperatures. The valve is designed to restrict flow and prevent system surges due to its linear characteristic. It ensures maximum tightness and offers a long lifespan with maintenance-free operation, making it a cost-effective investment.

Material Composition
Key components include a cast steel GS-C25 body, stainless steel piston and stem, steel ST 37 handwheel, bonnet, and nuts, graphite packing, and brass MS 58 stem guide and nuts. For sizes DN65-200, the handwheel and distance part are made of cast iron GG25.

Dimensions and Flow Coefficient
The document provides detailed dimensions for each valve size, including flange dimensions and weight. The flow coefficient (Kv-value) ranges from 4.5 for DN15 to 723.0 for DN200, indicating the valve's capacity to allow fluid flow.

Pressure/Temperature Relationship
The valve is designed to operate effectively across a wide temperature range, from -10°C to 450°C, maintaining pressure integrity throughout.

Catalog excerpts

PISTON VALVE TYPE E5391 PN40 GENERAL DIMENSION: PRESSURE RATING: MATERIAL BODY: MATERIAL INTERNAL: STAINLESS STEEL STAINLESS STEEL STAINLESS STEEL SPRING STEEL DISTANCE PART* STEM GUIDE STEM PACKING DISC SPRING SPRING STEEL SPRING STEEL DS-E5391-UK-09-2016-REV. A We reserve the right for changes. Reliable self-cleaning construction. The piston slides between two sealing rings. The lower ring has media contact on the inner surface - when closing the valve the piston will remove any sediments on the inner surface of the sealing ring. Particularly suitable for steam, hot water, hot oil, dry gas, condensate and alternating temperatures. Dansk Ventil Center A/S Suitable for restriction of the flow and due to a linear characteristic system surges are avoided. The sealing ring ensures maximum tightness in the passage as well as against the atmosphere. Long life span and maintenance free operation provides a good investment utilization ratio.

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