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Union, 3" NPT RH, 2" NPT

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857-004-101

  • Monoflow and duoflow design
  • Self-supported rotating union
  • Radial housing connection
  • Balanced mechanical seals
  • Seal combination: Carbon Graphite/Tungsten Carbide
  • Full-media flow
  • Easy and quick replacement of sealing components
  • Vented housing
  • Cast iron housing
  • Steel rotor
Features.ProductSeries.Imperial Features.ProductSeries.Metric
Features.ProductDetail.DimensionTitle
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A
3"-8 NPT RH
B
2"-11.5 NPT
C
190.5 mm
C
7.5"
D1
368 mm
D1
14.488"
D2
446 mm
D2
17.559"
E
3.433"
E
87.2 mm
F
47.6 mm
F
1.874"
G
73 mm
G
2.874"
H
102 mm
H
4.016"
J
9.685"
J
246 mm
K
3"-8 NPT
M
75 mm
M
2.953"
N
138 mm
N
5.433"
O
NPT 2"-11.5 RH
R
361 mm
R
14.213"
S3
Threaded
Features.ProductDetail.SpecificationTitle
Features.Products.Media
Water, Steam
Features.ProductDetail.SpecificationRotorConnectionTitle
3"-8 NPT RH
Features.ProductDetail.SpecificationHousingConnectionTitle
2"-11.5 NPT
Steam Features.ProductDetail.Flow
1101.6 GPM
Steam Features.ProductDetail.Flow
4170 l/min
Steam Features.ProductDetail.Pressure
3.5 bar
Steam Features.ProductDetail.Pressure
50 psi
Steam Features.ProductDetail.Temperature
121 °C
Steam Features.ProductDetail.Temperature
250 °F
Water Features.ProductDetail.Flow
264.4 GPM
Water Features.ProductDetail.Flow
1001 l/min
Water Features.ProductDetail.Pressure
10 bar
Water Features.ProductDetail.Pressure
150 psi
Water Features.ProductDetail.Temperature
121 °C
Water Features.ProductDetail.Temperature
250 °F
Features.Products.DocumentsAndResources
Service Guide for unions beginning with 857
Operating Manual for 54, 55, and 57 series