KDV Diaphragm Valve Plastic Lined - Weir type product image

KDV Plastic Lined – Weir Type

KDVs Weir Type Diaphragm Valves offer exceptional durability, reliability and control. The clean design completely isolates line media from the mechanical components of the valve.

Features & 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

  • Acid (e.g. hydrochloric, sulphuric nitric)
  • Moist chlorine
  • Chlorinated water
  • Demineralised water
  • Salts
  • Caustic solutions
  • Lime Solutions
  • Copper chemicals

Nominal Size:  DN15-DN200
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

Material of Construction

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

Design Standards

EN13397-2001 (BS5156:1985)
MSS SP88-1993-(R-01)

Testing Standards

EN12266-1 2002(BS6755 Part 1)
MSS SP88-1993-(R-01)

Brochures

kdv weir type range brochure

WT Range Brochure

1.92 MB
KDV actuation brochure

Actuation Brochure

1.45 MB
KDV weir type diaphragm brochure

WT Diaphragms Brochure

561.62 KB

Data Sheet

MSS SP88-1993-(R-01) – Raised Face
PDF ICON

DN25-DN150 Rising Handwheel

346.73 KB
PDF ICON

DN25-DN150 Non Rising Handwheel

265.90 KB
EN558-1 Series 1(DIN3202-F1) – Raised Face
PDF ICON

DN15-DN150 Rising Handwheel

348.09 KB
PDF ICON

DN25-DN150 Non Rising Handwheel

265.97 KB
EN558-1 Series 1(DIN3202-F1) – Full Face
PDF ICON

DN15-DN150 Rising Handwheel

358.43 KB
PDF ICON

DN25-DN150 Non Rising Handwheel

286.90 KB
EN558-1 Series 7(BS5156) – Raised Face
PDF ICON

DN15-DN150 Rising Handwheel

348.33 KB
PDF ICON

DN25-DN150 Non Rising Handwheel

267.23 KB
PDF ICON

DN200 Non Rising Handwheel

267.40 KB
EN558-1 Series 7(BS5156) – Full Face
PDF ICON

DN15-DN150 Rising Handwheel

621.29 KB
PDF ICON

DN25-DN150 Non Rising Handwheel

287.28 KB

Installation and Operation Manual

PDF ICON

KDV Diaphragm Valves Service Instructions

955.41 KB