KDV WEIR TYPE DIAPHRAGM VALVE
Glass Lined Weir Type Diaphragm Valve
KDV’s Glass Lined Diaphragm Valve combines the proven Weir Type design with a borosilicate glass-lined body for reliable handling of corrosive and abrasive process media. The valve’s clean design completely isolates line media from the mechanical components, providing dependable flow control for demanding industrial applications.
FEATURES AND BENEFITS
- Bubble-tight shutoff (Class VI)
- Cavity free design
- Easy/low maintenance
- In-line serviceable (top entry)
- No stem seal leakage
- Standard Position indicator
Applications for Glass Lined Diaphragm Valves
- Strong mineral and oxising acids
- Sliding fine particulate abrasive media
- Halogens
- Esters
- Alcohol
Nominal Size:
DN15 – DN250
Face to Face:
BS, DIN, MSS
Flange Drilling:
ANSI#125/150, PN10/16, Table D/E, JIS
Pressure:
Up to 16 Bar (Elastomer Diaphragm)*
Up to 10 Bar (PTFE Diaphragm)*
*Max pressure varies across size range
Design Standards:
EN13397-2001 (BS5156:1985) MSS SP88-1993-(R-01)
Testing Standards:
EN12266-1 2002(BS6755 Part 1) MSS SP88-1993-(R-01)
DIAPHRAGM MATERIALS
10 – Natural rubber (NR)
20 – EPDM rubber
30 – Butyl rubber (IIR)
40 – Nitrile rubber (NBR)
50 – Neoprene rubber (CR)
60 – Hypalon rubber (CSM)
70 – Viton rubber (FKM/FPM)
92 – PTFE/EPDM backed
93 – PTFE/Butyl backed
96 – PTFE/Hypalon backed
97 – PTFE/Viton backed
98 – PTFE/Silicon backed
9D – TFM/PVDF/EPDM (3 PIECE)
9R – TFM/PVDF/EPDM (3 PIECE
with titanium Connector)
NB: Vacuum grade diaphragms available on request
MATERIALS OF CONSTRUCTION
