Y696VR Series
2
Specications
Body Sizes and End Connection Styles
(1)
See Table 1
Maximum Allowable Emergency Inlet
(Casing) Pressure
(2)
±15 psig (±1,03 bar)
Maximum Allowable Pressure Without Internal
Parts Damage
(2)
±8 psig (±0,55 bar)
Maximum Downstream Pressure
(2)
Full Vacuum
Vacuum Control Pressure Ranges
(2)
See Table 2
Wide-Open Flow Coefcients
C
g
: 515; C
v
: 14.7; C
1
: 35
IEC Sizing Coefcients
X
T
: 0.78; F
D
: 0.67; F
L
: 0.89
Spring Case Connection
3/4 NPT
Control Line Connection Connection
1/2 NPT
Gauge Tap Connection
1/4 NPT
Pressure Registration
Type Y696VR: Internal
Type Y696VRM: External
Material Temperature Capabilities
(2)
Nitrile (NBR): -40° to 180°F (-40° to 82°C)
Fluorocarbon (FKM):
40° to 300°F (4° to 149°C)
Ethyleneproplyene (EPR):
-20° to 275°F (-29° to 135°C)
Peruoroelastomer (FFKM):
0° to 300°F (-18° to 149°C)
Silicone (VMQ): -40° to 400°F (-40° to 204°C)
Approximate Weights
Cast Iron:
45 pounds (20 kg)
Steel, Stainless Steel, or Hastelloy
®
C:
57 pounds (26 kg)
1. End connections for other than U.S. standards can usually be provided; consult the local Sales Ofce.
2. The pressure/temperature limits in this instruction manual and any applicable standard or code limitation should not be exceeded.
Table 1. Body Sizes and End Connection Styles
BODY SIZE,
NPS (DN)
CONSTRUCTION MATERIAL AND END CONNECTION STYLE
Cast Iron Steel or Stainless Steel Hastelloy
®
C
1-1/2 (40)
2 (50)
NPT
NPT, SWE, ANSI CL150 RF,
CL300 RF, or PN 16/25/40
ANSI CL150 RF
1. All anges are welded on to the body and have a face-to-face dimension of 14-inches (356 mm).
Installation
!
WARNING
Personal injury, property damage,
equipment damage, or leakage due to
escaping gas or bursting of pressure-
containing parts may result if this
equipment is overpressured or is
installed where service conditions could
exceed the limits given in specications,
or where conditions exceed any
ratings of the adjacent piping or piping
connections. To avoid such injury or
damage, provide pressure-relieving or
pressure-limiting devices (as required
by the appropriate code, regulation, or
standard) to prevent service conditions
from exceeding those limits. Additionally,
physical damage to this equipment could
cause personal injury or property damage
due to escaping gas. To avoid such injury
or damage, install the equipment in a safe
and well ventilated location.
Equipment operation within ratings does not preclude
the possibility of damage from debris in the lines or from
external sources. This equipment should be inspected
for damage after any overpressure condition.
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