2. Product Specific Precautions 2
Common Precautions 2
Be sure to read before handling
Maintenance Parts
SMC specified parts should be used for service.
Refer to Chapter 5, “Construction and Dimensions" (P. 9) for the part indication numbers.
1.Replace the handle assembly when changing the sealant material. Due to the different materials
used, changing only the seal may prove inadequate.
Handle assembly/construction part number (1)
Temperature
specifications
Valve size
16
25
40
50
Standard(5
～
150
o
C
)
XLH16-30-1
XLH25-30-1
XLH40-30-1
XLH50-30-1
Note1) List the optional seal material symbol after the model number, except for the standard
seal material (FKM: compound No. 1349-80).
e.g.) XLH16-30-1-XN1
Exterior seal, valve seal
Description
Constructions No.
Material
Valve size
16
25
40
50
Exterior seal (3)
Standard
AS568-025V
AS568-030V
AS568-035V
AS568-039V
Specific
AS568-025
**
AS568-030
**
AS568-035
**
AS568-039
**
Valve seal (2)
Standard
B2401-V15V
B2401-V24V
B2401-P42V
AS568-227V
Specific
B2401-V15
**
B2401-V24
**
B2401-P42
**
AS568-227
**
Note1) List the optional seal material symbol after the model number, except for the
standard sealant material (FKM: compound no. 1349-80).
e.g.) AS568-025-XN1
Note2) Refer to the Construction of each series for the construction numbers.
Note3) Due to the different materials used, changing only the seal may prove inadequate.
Additional symbols of the seal materials
Seal material
EPDM
Barrel
Perfluoro
R
Kalrez
R
Chemraz
R
VMQ
FKM for
PLASMA
ULTIC
ARMOR
R
Combination No.
2101-80
70W
4079
SS592
SS630
SSE38
1232-70
3310-75
UA4640
Symbol
-XN1
-XP1
-XQ1
-XR1
-XR2
-XR3
-XS1
-XT1
-XU1
Note1)
Due to the different materials used, changing only the seal may prove inadequate.
Barrel Perfluoro
R
is a registered trademark of Matsumura Oil Co.,Ltd.
Kalrez
R
is a registered trademark of E.I. du Pont de Nemours and Company or
its affiliates.
Chemraz
R
is a registered trademark of Greene, Tweed Technologies,Inc.
ULTIC ARMOR
R
is a registered trademark of Nippon Valqia Industries, Ltd.
Caution
6 -
XL*****-OMJ0005-C
