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Bellows valve – Item 6

Bellows valve – Item 6

Product catalog summary

Specifications:
The document outlines the specifications for a valve system, including components and materials. The main components are the body, yoke, seat, disc, stem, bellows, antifriction disk, gaskets, packing, handwheel, and screws. Materials used include EN-GJL-250 for the body and yoke, stainless steel for several components, graphite for gaskets and packing, and carbon steel for screws.

Procedures:
Maintenance procedures are indicated, with a focus on lubrication and ensuring the integrity of the backseat and double anti-friction bearings. The valve features a rotating disc and an opening index with an anti-rotation function.

Standards:
The valve is TA-Luft approved, indicating compliance with specific environmental standards.

Recommendations:
Recommendations include regular maintenance and inspection to ensure optimal performance and longevity of the valve system.

Technical Data:
The document provides detailed dimensions and performance data for various valve sizes (DN 15 to DN 200), including measurements in mm for length (L), height (H), and weight (Kg). The flow coefficient (Kv) is also provided for each size.

Temperature and Pressure Ratings:
The valve is rated for temperatures ranging from -10°C to 300°C, with corresponding pressure ratings decreasing from 16 bar to 9.6 bar as temperature increases. For DN 200, the pressure rating is 14 bar.

Flow Capacity:
Flow capacity percentages are provided for each valve size, indicating the flow rate at different opening percentages (20% to 100%).

Catalog excerpts

Caratteristiche principali di serie Main standard features Vite di bloccaggio Stop screw I Ingrassatore Lubricator Doppia ralla antifrizione Double anti-friction bearings Indicatore di apertura con funzione antirotazione Opening index with anti-rotatinon functionOtturatore rotante Rotating disc Sede mandrinata Pressed-in seat Acqua calda e/o surriscaldata, vapore, aria, ecc. Hot water and/or overheated water, steam, air, etc. Componente Corpo Cavalletto Sede Otturatore Stelo Soffietto Disco antifrizione Guarnizioni Baderna Volantino Viti Components Body Yoke Seat Disc Stem Bellows Antifriction disk Gaskets Packing Handwheel Screws Material EN-GJL-250 EN-GJL-250 St. Steel 1.4021 St. Steel 1.4021 St. Steel 1.4021 St. Steel 1.4541 St. Steel 1.4021 Graphite + St. Steel Graphite Pressed steel Carbon steel

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Dimensioni Size KV alia percentuale di alzata figura 61/R Kv at stroke rate item 61/R Condizioni di esercizio/ Working conditions E’ necessario I’uso dell’otturatore equilibrato quando la pressione di esercizio supera i seguenti valori It is necessary to use the balanced disc when the working pressure is over the following values 200 14 N0TA: Utilizzando una valvola con otturatore equilibrato e indispensabile installaria al contrario, cioe con la pressione sopra I'othiretore NOTE: Using a valve with balanced disc is it essential to install it in reverse my, that is with the pressure on the disc...

Open the catalog to page 2

Bellows valve – Item 6

Bellows valve – Item 6

Catalog excerpts

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