Data Sheet

Bulletin 74.1:Y692
2
AvailableCongurations
Direct-operated pressure reducing regulator with
external or internal pressure registration with
seven outlet (control) pressure ranges from
1 in. w.c. to 7 psig / 2 mbar to 0.48 bar. Available in
NPS 1-1/2 and 2 / DN 40 and 50 body sizes.
Body Sizes and End Connection Styles
(1)
Cast Iron: NPS 1-1/2 / DN 40, NPT,
NPS 2 / DN 50, NPT or CL125 FF
Steel: NPS 1-1/2 or 2 / DN 40 or 50, NPT, SWE,
CL150 RF, CL300 RF or PN 16/25/40
Stainless steel: NPS 1-1/2 or 2 / DN 40 or 50,
NPT, CL150 RF, CL300 RF or PN 16/25/40
Maximum Inlet Pressure
(2)
150 psig / 10.3 bar
Maximum Outlet (Casing) Pressure
(2)
15 psig / 1.0 bar
Maximum Operating Outlet (Control) Pressure to
Avoid Internal Part Damage
(2)
3 psig / 0.21 bar above outlet (control)
pressure setting
Control Pressure Ranges
(2)
See Table 1
Flow Capacities
See Table 5
ReliefSizingCoefcients
See Table 6
OriceSize
See Table 6
Pressure Registration
Internal (standard) or External
Spring Case Connection
1/4 NPT
Specications
Temperature Capabilities
(2)
Nitrile (NBR):
-20 to 180°F / -29 to 82°C
Fluorocarbon (FKM):
0 to 300°F / -18 to 149°C
 Peruoroelastomer(FFKM):
-20 to 300°F / -29 to 149°C
EthylenePropylene (EPDM):
-20 to 275°F / -29 to 135°C
IECSizingCoefcients
X
T
: 0.775
F
D
: 0.50
F
L
: 0.89
Approximate Weights
Cast Iron Body: 45 lbs / 20 kg
Steel/Stainless steel Body: 57 lbs / 26 kg
Canadian Registration Number (CRN)
Approved
PED (Pressure Equipment Directive) Category
The Type Y692 may be used as a safety
accessory with pressure equipment in the
PED 97/23/EC Category I.
Construction Materials
Body, Union Nut, Spring Case and Lower
Casing Assembly: Cast iron, WCC steel,
CF8M Stainless steel
Control Spring, Control Spring Seat, Split Ring
and Diaphragm Plate: Plated steel
Diaphragm: Nitrile (NBR) (standard),
Fluorocarbon (FKM), Ethylenepropylene (EPDM),
Silicone (VMQ)
O-rings: Nitrile (NBR), Fluorocarbon (FKM),
Peruoroelastomer (FFKM),
Ethylenepropylene (EPDM)
Orice,PusherPost,PusherPostConnector,
Lever Assembly, Stem and Pitot Tube:
Stainless steel
Gasket: Composition
Disk Assembly: Nitrile (NBR) and Stainless steel,
Fluorocarbon (FKM) and Stainless steel,
Polytetrauoroethylene (PTFE) and Stainless steel
or Ethylenepropylene (EPDM) and Stainless steel
1. Fabricated by using slip-on anges and socket welding nipples into body.
2. The pressure/temperature limits in this Bulletin and any applicable standard limitation should not be exceeded.
This section lists the specications of theType Y692 Gas Blanketing Regulator System. Factory specication,
such as spring range and orice size are stamped on the nameplate fastened on the regulator at the factory.