Seal kits, Temperature ratings – Flowserve SNA-Series Pneumatic Actuator User Manual
Page 4
FCD AXAIM0004-
01
(AUTO-4)
03/
11
Page: 4 of 4
©
2011, Flowserve Corporation, Printed in USA
3-Position Control/Dribble Control
SR Limit Switch Method
Flowserve Corporation
1350 N. Mountain Springs Parkway
1978 Foreman Dr.
Flow Control Division
Springville, Utah 84663-3004
Cookeville, TN 38501
www.flowserve.com
Phone: 801 489 2233
Phone: 931 432 4021
Automax Valve Automation Systems
Installation, Operation and Maintenance Instructions
Seal Kits
Buna Seal Kit Number SN (Actuator Model No.) SKB
Viton Seal Kit Number SN (Actuator Model No.) SKV
Low Temperature
S (Actuator Model No.) SKF
Seal Kit Number
1
Body
Hard Anodized Aluminum
1
1
2
Pistons
Die Cast Aluminum
2
2
3
Pinion
Nickel Plated Steel
1
1
4
Pinion Washer ➀
Nylon
1
1
5
Pinion Snap Ring ➀
Steel/Plated
1
1
6
Upper Pinion O Ring ➀
Nitrile Rubber
1
1
7
Lower Pinion O Ring ➀
Nitrile Rubber
1
1
8
Piston and End Cap O Ring ➀
Nitrile Rubber
4
4
9
Inward Travel Stop Bolt
Stainless Steel
1
1
10
Inward Travel Retaining Nut
Stainless Steel
1
1
11
Inward Travel Spring
Steel/Plated
1
1
12
Piston Guide
Nylon and Molybdenum Disulfide
2
2
13
Piston Guide Band
Nylon and Molybdenum Disulfide
2
2
14
Stop Bolt Retaining Nut
Stainless Steel
2
2
15
Stop Bolt Washer
Stainless Steel
2
2
16
Stop Bolt O Ring ➀
Nitrile Rubber
2
2
17
Stop Bolt
Stainless Steel
1
1
18
Right End Cap
Die Cast Aluminum/Electrostatic Poly
1
1
19
Left End Cap
Die Cast Aluminum/Electrostatic Poly
1
1
20
End Cap Supply O Ring
Nitrile Rubber
2
2
21
End Cap Screw
Stainless Steel
8
8
22
End Cap Screw Washer
Stainless Steel
8
8
23
Outer Spring
Spring Steel Coated
0 2 max.
➁
24
Middle Spring
Spring Steel Coated
0
2 max
.
➁
25
Inner Spring
Spring Steel Coated
0
2 max
.
➁
Item
No.
Part Description
Materials
Quantity
DA SR
Note:
➀
Parts included in Seal Kit.
➁
See spring chart for required spring combination.
Temperature Ratings
Standard
●
Nitrile -20
°
F to +175
°
F
High Temp
▲
Viton 0
°
F to +300
°
F
Low Temp
▲
Silicon-based -55
°
F to +175
°
F
SN kits consist of all sealing parts, snap ring and washers.
Pressure Rating
150 psig maximum
Notes:
●
For standard applications use multi-purpose
polymer fortified grease, such as Dubois
Chemicals MPG-2.
▲
For low temperature and high temperature
applications, use special formulated grease
such as Dow Corning
®
55.