Data Sheet

Bulletin LP-7:C471/C477
4
MODEL NUMBER SIZE SPRING RATE
EXAMPLE: C 4 7 1 N -  - 
Symbol Description
C Product Family
4 UL
®
Listed
8 Non UL
®
Listed
7 Ductile Iron Body
8 Steel Body
9 Stainless Body
7 Straight Through Flow
3 Double Flanged Body
4 Single Flanged Body
1 Tee Body (Flanged and NPT)
Nitrile (NBR) (Standard, Only Nitrile
(NBR) has UL
®
Approval)
V Fluorocarbon (FKM) Trim
T PTFE Trim
N Neoprene (CR) Trim
S Stainless Steel Body/Gland*
M Manual Latch Factory Installed
ST Stainless steel Gland and PTFE Trim
 1-1/4-Inch / DN 32
 2-Inch / DN 50
 3-Inch / DN 80
 4-Inch / DN 100
 105 GPM / 397 L/min
 150 GPM / 568 L/min
 160 GPM / 606 L/min
 220 GPM / 833 L/min
 250 GPM / 946 L/min
 265 GPM / 1003 L/min
37 375 GPM / 1419 L/min
 460 GPM / 1741 L/min
Figure 3. Fisher
®
Internal Valve Numbering System
* The Type C891 has Stainless steel body as Standard. ‘S’ callout on a Type C891 stands for a Stainless steel Gland.
For each product family, not all options are available. To check the availability of type numbers specied above, contact or visit your local LP-Gas Equipment distributor.