EJ Series Butterfly Valves
EJ Series Butterfly Valves
Design Feature
3type of Seat material.
The 3 type of seat material are; VMQ(Silicone rubber) which can be used for a wide range of temperature applications, W-NBR(White NBR), which is suitable for use in the food processing industry and FKM(Fluoro rubber) which has properties such as strength and durability idea for use on variety of fluid applications. W-NBR and VMQ meet the requirement of FDA.*
*All the above chemical materials used are approved by FDA, and the seats are manufactured within the maximum allowable limitations and restrictions.
Suitable for various flanges.
All the sizes are suitable for the flanges of EN1092 PN6, PN10, PN16 / BS10 Table E/ASME Class125 and Class150.
Integral ISO 5211 actuator mounting flange.
Any pneumatic or electric valve actuator provided with ISO 5211 valve mounting flange can be easily mounted for actuation of valves in the field.
High performance stem bearing having additional strength to withstand high temperature and high pressure.
The stem bearing of the EJ series is a multilayered backmetal to provide a high performance bearing surface capable of withstanding high pressure and temperature.
Backup ring to maintain the stem sealing.
The backup ring around the stem maintains the performance of the stem sealing caused by the movement of the stem / disc in the sealing / seat of valve.
Stainless steel bearing features.
Within the stainless upper body bearing is a multi-layered bearing embedded to provide smooth stem operation. Housed also within the stem bearing is a snap ring to provide protection and prevent blow out of the stem due to internal pressure.
Polished disc.
The polished disc is standard for VMQ and optional for W-NBR seats for use within the food and pharmaceutical industry.
Materials Flange Table
Parts
Materials
Body
Ductile iron (EN-GJS-450-10)
Stem
Stainless Steel (AISI 410)
Disc
Stainless Steel (A351 Gr.CF8M)
Seat
W-NBR (White NBR)
VMQ (Silicone rubber)
FKM (Fluoro rubber)
O-ring
FKM
Bearing
Stainless Steel
Stem bearing
Multi-layered bearing*
Plug
Zinc die-cast
Bottom stem
Stainless Steel (AISI 410)
* Tetrafluoroethylene resin filled overlayer, a sintered bronze interlayer and a steel backing.
Standard
BS EN 1092
BS10
ASME
B16.5
Size
PN6
PN10
PN16
Table E
Class150
inch
mm
2
50
2-1/2
65
3
80
4
100
5
125
6
150
8
200
10
250
12
300
: Standard mounting
: Special mounting (Proper centering is required) a steel backing.
Technical Specifications
•Maximum service pressure
PN1010bar (1.0MPa)
•Body material
Ductile ironEN-GJS-450-10, Equivalent to ASTM
A536 Gr. 65-45-12, BS 2789 Gr. 40/10*1
*1Obsolete Standard. 0bar
•Applicable standards
Valve designEN 593:2004
•Coupling flanges
Wafer typeEN1092 PN6, PN10, PN16
BS10 Table E
ASME Class125, Class150
P-T rating
Technical Data