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Keystone Butterfly Valve GR Series
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Spesifikasi

Keystone Resilient Seated Butterfly Valve Type Type GRW/GRL

Type GRW as Wafer and Type GRL as Lug

Body : Duclite Iron ASTM A536 Gr 65-45-12

Disc : Super Duplex/ SS 316/ SS 314

Seat : EPDM, NBR, HNBR

Bushing : Polyester

Plug : Carbon Steel


Ukuran


for GRW : DN 50 80 100 150 200 300 350 400 450 500 600 700 900 mm

for GRL : DN 50 80 100 150 200 300 350 400 450 500 600 750 900 mm


PRODUCT INFO


KEYSTONE Butterfly Valves

A heavy duty industrial resilent seated butterfly valve

GRW-Wafer Body Design 

GRL-Lugged Body Design

 

Features 

  • Wafer and lugged body design with face to face dimension, according to EN 558 series 20 and API 609
  • Design according to EN 593 and API 609
  • The seatis field replaceable and fully isolates the body and shaft from the flow
  • Primary shaft sealing exceeds the pressure rating of thevlve snd prvents leakage
  • Available approvats NSF/ASME std 61, ACS, KIWA, WRAS-G, ABS, CU-TR

 

Technical Data

Size : DN 50-900

Pressure : 16 bar DN 50-300

         10 bar DN 350-900

Temperature : -40 C to +160 C

End of line : 10 bar DN 50-300

          6 bar DN 350-900

Vacuum service : 0.4 bar

Flange Accommodation : PN 6/10/16, ASME 125/150,JIS 10 K,BS Table E,AS4087 PN 16

 

General Application

water,air,dry bulk conveyingetc. These valves are for any service where a drop-tight shut-off with maximum flow area is required


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