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Bellows valve – Item 64

Bellows valve – Item 64
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Bellows valve – Item 64

Product catalog summary
Specifications:
The document outlines the specifications of a lubricator with various components and materials. Key components include the body and yoke made of EN-GJS-400-18-LT, and several parts like the seat, disc, stem, and bellows made of stainless steel (St. Steel 1.4021 and 1.4541). The lubricator features a backseat, double anti-friction bearings, a rotating disc, and an opening index with anti-rotation function. It is TA-Luft approved and has a pressed-in seat.
Components and Materials:
  • Body and Yoke: EN-GJS-400-18-LT
  • Seat, Disc, Stem: St. Steel 1.4021
  • Bellows: St. Steel 1.4541
  • Gaskets: Graphite + St. Steel
  • Packing: Graphite
  • Handwheel: Pressed steel
  • Screws: Carbon steel
Dimensions and Performance:
The document provides detailed dimensions and performance metrics for various DN (nominal diameter) sizes ranging from 15 to 300 mm. Key parameters include dimensions (D, L, H, V), weight (Kg), and flow coefficient (Kv) for each size. For example, DN 15 has dimensions 95x130x235x125 mm, weighs 3.8 kg, and has a Kv of 4.6 m3/h.
Flow Rates:
Flow rates are provided at different percentages (20%, 40%, 60%, 80%, 100%) for each DN size. For instance, at 100% flow, DN 15 has a flow rate of 4.19 m3/h, while DN 300 has a flow rate of 1224 m3/h.
Temperature and Pressure Ratings:
The temperature range is from -10°C to 350°C, with corresponding pressure ratings decreasing from 16 bar at -10/120°C to 11.2 bar at 350°C. For larger DN sizes (200, 250, 300), the pressure ratings are 14, 9, and 6 bar respectively.
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Catalog excerpts

Bellows valve – Item 64-1

Vite di bloccaggio Stop screw I Limitatore di alzata (fornibile a richiesta gratuitamente) Rise limiter (available on request) Doppia ralla antifrizione Double anti-friction bearings Indicatore di apertura con funzione antirotazione Opening index with anti-rotatinon function I Controtenuta di sicurezza ricavata sullo stelo Backseat I Otturatore rotante Rotating disc I Sede mandrinata Pressed-in seat Impianti di trasmissione calore, centrali termiche, caldaie e serbatoi, impianti di teleriscaldamento, applicazioni con olio diatermico, ecc. Heat transfer systems, thermal power stations, industrial boilers and tanks, distn'ct heating plants, diathermic oil installations, etc. Acqua calda e/o surriscaldata, vapore, aria, fluidi diatermici, ecc. Hot water and/or overheated water, steam, air, diathermic fluids, etc. Materiali Materials Components Body Yoke Seat Disc Stem Bellows Antifriction disk Gaskets Packing Handwheel Screws Material EN-GJS-400-18-LT EN-GJS-400-18-LT 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

 Open the catalog to page 1
Bellows valve – Item 64-2

Dimensioni Sizes KV alia percentuale di alzata figura 64/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 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 Varianti costruttive Manufacturing...

 Open the catalog to page 2

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.