Union, Quick Connect, 4.43" pilot, 2-1/2" NPT

6400-031-423

  • Monoflow and duoflow design
  • Self-supported rotating union
  • Radial housing connection
  • Balanced mechanical seals
  • Steel-banded floating seal
  • Easy and quick replacement of sealing components
  • Full-media flow
  • Vent slots
  • Cast iron housing
  • Steel rotor flanged/threaded
  • Seal Combinations: Carbon Graphite/Tungsten Carbide standard, Silicon Carbide/Tungsten Carbide for severe conditions such as poor water quality

Dimensions

Selected dimensions for this product
A
Quick Connect
B
2-1/2"-8 NPT
C
279 mm
D1
504 mm
D2
603 mm
E
139 mm
F
30.28 mm
G
95.3 mm
I
112.395 mm
J
381 mm
K
4"-8 NPT
M
88.9 mm
N
144 mm
O
NPT 2-1/2"-8 RH
P
Non-Threaded
R
504 mm
S
26.2 mm
S2
70.155 mm
S3
Rotating
X
30.28 mm

Operating Specifications

Recommended operating limits for pressure and speed
Media
Water
Rotor Connection
Quick Connect
Supply Connection
2-1/2"-8 NPT
Water Max. Flow
1135 l/min
Water Max. Pressure
10 bar
Water Max. Temperature
121 °C

Documents & Resources

Installation Guide
Installation Guide for 6000 and 6005 series
Interface Drawing
Interface Control drawing for 6400-031-423
Operating Manual
Operating Manual for 6000-series unions
Service Guide
Service Guide for unions beginning with 620X to 640X