Specifications
SAFETY
Copyright Jetstream of Houston, LLP © 20011
Effective 2/2011
Jetstream of Houston, LLP
Phone: US & Canada: 800-231-8192 or 813-590-1300
Web Site: www.waterblast.com
SAFETY
UP TO 15,000 PSI (1000 BAR)
SEVERE SERVICE RELIEF VALVES
For use as a primary relief device to protect waterblast systems
and operators from dangerous overpressurization, the Severe
Service Relief Valve opens to safely bypass some of the
system flow in circumstances where the operating pressure
exceeds the factory set opening pressure of the valve.
• Designed for rigorous service and low maintenance
• Valves constructed with carbide or stainless steel ball and
hardened stainless steel seat for long service life
• Cartridge style ball-seat valve and spring assemblies allow
fast, simple field repair without affecting relief pressure setting
• Shipped from the factory preset and tested at customer
specified opening pressure
G-2
51452 Base, 1/2" NPT Male
1 51822 Base, 3/4" NPT Male
51441 Base, 1" NPT Male
2
51500 Ball-Seat Cartridge, 1/2" & 3/4"
51486 Ball-Seat Cartridge, 1"
51477 Spring Cartridge, 1/2" & 3/4", A Models
51482 Spring Cartridge, 1/2" & 3/4", B Models
3 51484 Spring Cartridge, 1/2" & 3/4", C Models
51468 Spring Cartridge, 1", A Model
51472 Spring Cartridge, 1", B Model
Item Part No. Description
Replacement Parts
Part
No.
Ball Material
Diameter
51470A 1/2" NPT Male 6.5 165 1.94 49.3 Carbide 0 — 6,000 0 — 415 5,000 350
51470B 1/2" NPT Male 6.5 165 1.94 49.3 Carbide 6,000 — 12,000 415 — 825 10,000 700
51470C 1/2" NPT Male 6.5 165 1.94 49.3 Carbide 12,000 — 18,000 825 — 1240 15,000 1000
51945A 3/4" NPT Male 6.7 170 1.94 49.3 Carbide 0 — 6,000 0 — 415 5,000 350
51945B 3/4" NPT Male 6.7 170 1.94 49.3 Carbide 6,000 — 12,000 415 — 825 10,000 700
51945C 3/4" NPT Male 6.7 170 1.94 49.3 Carbide 12,000 — 18,000 825 — 1240 15,000 1000
51460A 1" NPT Male 7.9 200 2.20 55.9 Stainless Steel 0 — 6,000 0 — 415 5,000 350
51460B 1" NPT Male 7.9 200 2.20 55.9 Stainless Steel 6,000 — 12,000 415 — 825 10,000 700
Maximum
Working
Pressure
Relief Pressure Range **
Connection
Type*
(C)
Overall Length
in mm in mm psi bar psi bar
* See details on all connection types beginning on page I-2.
** Relief pressure must be specified when ordering.