Pump Solutions Group Neptune Relief Valves User Manual
Relief valves, Features, Bulletin rv-08
Relief Valves
BULLETIN RV-08
Relief Valves
Features
• All wetted parts are 316SS or Carpenter 20
• Pressures from 30 to 2000 psi
• Spring guide for consistent relief capacity
• Easily adjustable relief setting
• Liquid service only
Neptune Relief Valves have two outstanding characteristics:
• economy
• simplicity
Economy. Models RV-316-1, -2, -3 and -4 with all 316SS wetted
parts cost no more than other 304SS designs. Carpenter 20 valves
are also available as standard.
Simplicity. Neptune’s exclusive design uses a self-cleaning ball check
and seat. It has a unique spring guide which assures proper spring
loading and consistent relief capacity. The relief pressure setting can
be easily changed by removing the top cap screw and locking set
screw, inserting a proper Allen wrench into the opening, and
adjusting the spring to the desired pressure.
Recommended setting: Operating
pressure plus 10% or 50 psi
whichever is greater.
CAP SCREW
CAP NUT
CAP NUT GASKET
LOCK SETSCREW
ADJUSTING
SETSCREW
SPRING GUIDE
SPRING
VALVE BODY
SPRING SEAT
BALL CHECK
BALL SEAT
© 2008 Neptune Chemical Pump Company
All Rights Reserved
Bulletin RV-08
P/N ZL105624
Printed in U.S.A.
SOLD BY:
Quotation and Ordering Information
Please supply the following information:
1. Type of liquid to be handled.
2. Relief pressure range or set point required.
MATERIAL OF
MODEL
PRESSURE
CONSTRUCTION
NUMBER
RANGE (PSI)
RV-316-1
30 to 100
Type 316
RV-316-2
101 to 400
Stainless Steel
RV-316-3
401 to 1000
RV-316-4
1001 to 2000
Carpenter 20
RV-C20-1
30 to 100
RV-C20-2
101 to 400
SPECIFICATIONS
Inlet/Outlet pipe size:
1
⁄
2
" NPT
MODEL
PRESSURE
CAPACITY
NUMBER
(PSI)
(GPM)
RV-316-1
100
3.0
RV-C20-1
RV-316-2
400
4.0
RV-C20-2
RV-316-3
1000
4.0
RV-316-4
2000
6.0
1
⁄
2
" FNPT
1
⁄
2
" MNPT
4
3
⁄
16
"
1
13
⁄
16
"
1
1
⁄
8
"
P.O. Box 247 • Lansdale, PA 19446-0247
Tel: 215-699-8700 • Fax: 215-699-0370
Toll-Free Tel: 1-888-3NEPTUNE (1-888-363-7886)
Toll-Free Fax: 1-800-255-4017
Web Site: http://www.neptune1.com
E-mail: [email protected]