Ball Valves Seat Variations
METRIC
Standard Seats
PTFE
15% Glass Filled PTFE
TFM
UHMWPE
NRG
PCTFE
PEEK
VIRGIN PEEK
DELRIN
VESPEL
VX1
25% Glass Filled PTFE
PVDF
DEVLON V-API
SRS
TFM
SRS
NRG
Cavity Filler Seats One piece seat and seal to minimize body cavity voids
PTFE
15% Glass Filled PTFE
TFM
UHMWPE
Diverter Seats One piece seat & seal for diverter and double block & bleed valves
PTFE
15% Glass Filled PTFE
TFM
UHMWPE
NRG
Pressure / Temperature Rating*: J R Glass Filled PTFE T PTFE U UHMWPE C PCTFE A TFM
T VIRGIN PTFE Inert to most chemicals, low coefficient of friction, recommended for water, foodstuff and corrosive chemicals. FDA grade. Colour: White
J 25% GLASS FILLED PTFE Similar to 15% glass filled PTFE seats but better resistance to wear and deformation under load. Colour: Gray-White with red stripe
R 15% GLASS FILLED PTFE
H GLASS & METAL OXIDE FILLED PTFE - VX1 Withstands higher temperatures and pressures than filled PTFE, good resistance under load, not recommended for foodstuff. Colour: Blue
bar
1595
110
1400
100
U ULTRA HIGH MOLECULAR WEIGHT POLYETHYLENE (UHMWPE) Good for nuclear, Tobacco, H2SO4 and chemical resistance applications, low coefficiant of friction. Temperature limit of 93°C. Colour: Pale White with green stripe
Class 600
C
70 69
70
50 Class 300
40 30
400
20
200
THERMAL FLUID Class 150
10
lb/in
2
0 bar
0
93
ºC -40
0
ºF -40 0
Cryogenic applications such as oxygen, hydrogen, nitrogen and more, suitable for temperatures up to -270°C. Colour: See-through White
TFM™ is a chemically modified PTFE that offers enhanced properties while retaining all the proven advantages of conventional PTFE. FDA grade. Color: white with brown stripe.
lb/in2 6527 6000
Y ACETAL RESIN (DELRIN®)
150
200
250
320
300
350
50 100 150 200 250 300 350 400 450 500 550 600 650 662
V DEVLON
bar 450
400
K
413
5500
Suitable for high pressures, good resistance to wear and deformation under load, temeprature limit 80°C. Must not be used in presence of oxygen. Colour: Creamy White with black stripe
5000 4500
Pressure
K CARBON FILLED PEEK® Suitable for elevated temeperatures, good resistance under high pressure loads, low coefficient of friction, suitable for many corrosive applications. Colour: Charcoal Black with yellow stripe
L VIRGIN PEEK
Class 2500
L
300
3500
250
3000
200
2500
Similar to filled PEEK® but higher coefficient of friction, suitable for nuclear, Tobacco, clean applications. FDA grade. Colour: Beige
2000 1500
S VESPEL®
Y
350
4000
®
W
150 100
1000
Vespel® is a polyimide material that has high temperature capabilities under load and is mainly used for heat transfer applications, hot gases and oils. Vespel® must not be used with STEAM or media containing WATER or WATER VAPOR. Colour: brown.
500 0
50 0 ºC -28
Temperature
W PVDF
Devlon® V-API is a high molecular weight polyamide that is specifically tailored for high temperature/ pressure. Applications in the offshore oil & gas sector. Colour: yellow.
230 260
100
Y DELRIN K L PEEK S VESPEL W PVDF
A TFM™ (Modified PTFE)
V DEVLON®
50
Temperature
C PCTFE
Good chemical resistance and versatility of application. Provides very good resistance to aggressive acids and numerous solvents and cleaning agents. Colour: white.
T
60
800 600
Specially for steam and thermal oil, low coefficient of friction, inert to most media. Colour: Pale Black with white stripe
R J AP H
-270ºC -450ºF
80
1000
P CARBON FILLED PTFE - NRG
U
103
P NRG
90
1200
Pressure
Similar to 15% glass filled PTFE seats but better resistance to wear and deformation under load. Colour: Gray-White with red stripe
lb/in2
H VX1
ºF -18 0
0
50
80
100
150
200
260
250
300
350
50 100 150 200 250 300 350 400 450 500 550 600 650 662
PVDF is a trademark of Dyneon, DEVLON® is a registered trademark of James walker, DELRIN® is a registered trademarks of DuPont, VESPEL® is a registered trademark of DuPont, TFM™ is a trademark of Dyneon, PEEK® is a trademark of VICTREX
*
The graph lines represent the maximum pressure / temperature rating of the seat material. When selecting a seat material, the lower rating between the valve body and seat should be considered. For more information please contact Habonim. Copyright © 2011 HABONIM Ltd. All rights reserved
Kfar Hanassi, Upper Galilee 1, 12305 Israel Te l : + 9 7 2 - 4 - 6 9 1 4 9 1 1 F a x : + 9 7 2 - 4 - 6 9 1 4 9 0 2 E-Mail: habonim@habonim.com www.habonim.com
CATSEATST-624M 07/11
Materials: