This document provides specifications for wafer butterfly valves of the BV242 series. It summarizes the key features including the wafer type design, ductile iron body and disc, EPDM seat and replaceable liner. Dimensional specifications are provided for nominal valve sizes ranging from 50mm to 500mm. Material specifications list the materials used for each component, including ductile iron for the body and disc, EPDM for the seat and liner, and various grades of stainless steel and bronze for other parts.

1. Wafer Butterfly Valve - BV242 Series
ButterflyValve, PN16,WaferType, SemiLugged,ConcentricDesign,Ductile IronBody,Ductile IronDisc,
EPDM Seat, Replaceable Liner, Confirm to BS 5155 (EN 593), Face to face according to EN558 series
20, Suitable for Installing between BS 4504/EN 1092 (Fig No. BV242) or ANSI CL 125/150 (Fig No.
BV242A) Flanges
TECHNICAL DESCRIPTION
DIMENSIONS
Nominal Size Dimensions
DN (mm) L (mm) A (mm) B (mm) C (mm)
50 42 70 141 30
65 45 76 150 30
80 45 99 157 30
100 51 119 168 30
125 55 130 187 30
150 55 142 206 30
200 60 176 231 34
250 67 209 270 34
300 76 249 328 34
350 76 302 368 40
400 102 354 400 52
450 114 385 422 52
500 130 438 480 64
600 151 464 562 70
Lever Operated valves: Fig No. BV242L/ BV242LA;
Gear Operated valves: Fig No. BV242G / BV242GA
Other disc materials and higher pressure ratings on request
Nylon coated or epoxy coated disc on request
Application : HVAC System & Plumbing
Application, Water,
Hydrostatic Test Pressure : Body: 24 bar; Seat: 17.6 bar
Pressure / Temperature Rating : 16 bar from -10⁰ to 110⁰C
Coating : Internal and External coated with
Fusion Bonded Epoxy paint RAL
5015 (Blue), Coating Thickness
(DFT) 200microns
MATERIAL SPECIFICATION
No Component Material BS EN ASTM
01 Body Ductile Iron BS EN 1563 GJS-450-10 ASTM A536 65-45-12
02 Disc DuctileIron+NiPlating BS EN 1563 GJS-450-10 ASTM A536 65-45-12
03 O-Ring EPDM - -
04 Bushing Bronze BS EN 1982 CC491K ASTM B62 C83600
05 Shaft Stainless Steel BS EN 10088 1.4006 AISI 410
06 Liner EPDM - -
07 Pin Stainless Steel BS EN 10088 1.4404 AISI 316
08 Key Carbon Steel BS EN 10083 1.1191 AISI 1045
OPTIONS