Emerson Enardo 850 Series Instruction Manual page 2

850 and 950 Series
Specifications
The Specifications section on this page provides specifications for the 850 and 950 Series pressure/vacuum relief
valve. Specification is stamped on the nameplate attached to the relief valve. Refer to Product Identification and
Marking section for the nameplate details.
Available Construction
See Figures 3 and 4
Inlet Connection Sizes
2 through 12 in. / 50 through 300 mm
Pressure Ranges
(1)(2)
0.4 to 32 oz./sq.in.
1.0 to 55.0 in. w.c.
1.72 to 138 mbar
17.6 to 1406 mm w.c.
Vacuum Pressure Ranges
0.4 to 32.0 oz/sq. in.
1.0 to 55.0 in. w.c.
1.72 to 138 mbar
17.6 to 1406 mm w.c.
1. The pressure limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
2. Pressure or vacuum setting has an increment of 0.5 oz./sq.in., 0.5 in. w.c. or 2.2 mbar.
Model - Inlet Size x
850 2 to 12 in.
Pressure Units Pressure Setting
z = oz./sq.in. 0.5 to 32.0 oz./sq.in.
n = in. w.c. 0.86 to 55.0 in. w.c.
mm = mm w.c. 22 to 1406 mm w.c.
mb = mbar 2.2 to 138 mbar
Model - Inlet Size
950 2 to 12 in.
Pressure Units Pressure Setting
z = oz./sq.in. 0.5 to 32.0 oz./sq.in.
n = in. w.c. 0.86 to 55.0 in. w.c.
mm = mm w.c. 22 to 1406 mm w.c.
mb = mbar 2.2 to 138 mbar
Teflon and Viton are marks owned by E. I. du Pont de Nemours and Company.
® ®
2
(1)(2)
Outlet Size - Housing Material
3 to14 in. 1 = Aluminum
2 = Ductile Iron
4 = 316SST
5 = Carbon Steel
/ Vacuum Units
z = oz./sq.in. 0.5 to 32.0 oz./sq.in.
n = in. w.c. 0.86 to 55.0 in. w.c.
mm = mm w.c. 22 to 1406 mm w.c.
mb = mbar 2.2 to 138 mbar
MODEL 850 PRESSURE/VACUUM RELIEF VALVE MODEL NUMBER
- Housing Material
1 = Aluminum 1 = PPS Polyphenylene Sulfide
2 = Ductile Iron 2 = 316SST
4 = 316SST
5 = Carbon Steel
/ Vacuum Units
z = oz./sq.in. 0.5 to 32.0 oz./sq.in.
n = in. w.c. 0.86 to 55.0 in. w.c.
mm = mm w.c. 22 to 1406 mm w.c.
mb = mbar 2.2 to 138 mbar
MODEL 950 PRESSURE/VACUUM RELIEF VALVE MODEL NUMBER
Figure 3. Pressure/Vacuum Relief Valve Model Number
Construction Materials
Housing: Aluminum, Ductile iron, Stainless steel
or Carbon steel
Seat / Pallet: Polyphenylene Sulfide (PPS) or
316 Stainless steel
Pallet Seal: Buna-N, FEP Teflon
Hardware: Zinc-plated Carbon steel or
Stainless steel
Weights: Zinc-plated Carbon steel, Stainless steel
or Lead
Gaskets: Buna-N, Teflon
Certification
EN 13463-1: 2001
EN 13463-5: 2003
Pallet and Seat Material
1 = PPS Polyphenylene Sulfide 1 = FEP
2 = 316SST 2 = Nitrile (NBR)
3 = Fluorocarbon (FKM)
Vacuum Setting - Weight Material
C = CS ZP
S = SST
L = Lead
Pallet and Seat Material Pallet Seal Material
1 = FEP
2 = Nitrile (NBR)
3 = Fluorocarbon (FKM)
Vacuum Setting - Weight Material
C = CS ZP
S = SST
L = Lead
or Viton
®
or Viton
® ®
Pallet Seal Material Body/Seat/Lid Seal Material -
1 = PTFE Body and FEP
Seat/Lid
2 = Nitrile (NBR)
3 = Fluorocarbon (FKM)
- Options
0 = No Options
F = Flat Face Flange (standard for Alumunim)
R = Raised Face Flange (standard for CS, DI, SS)
X = Epoxy Coating
W1 = Wireless Pressure and Vacuum Monitoring
W2 = Wireless Pressure Monitoring Only
W3 = Wireless Vacuum Monitoring Only
W4 = Wired Pressure and Vacuum Monitoring
W5 = Wired Pressure Monitoring Only
W6 = Wired Vacuum Monitoring Only
Body/Seat/Lid Seal Material
1 = PTFE Body and FEP Seat/Lid
2 = Nitrile (NBR)
3 = Fluorocarbon (FKM)
- Options
0 = No Options
F = Flat Face Flange (standard for Alumunim)
R = Raised Face Flange (standard for CS,DI, SS)
X = Epoxy Coating
W1 = Wireless Pressure and Vacuum Monitoring
W2 = Wireless Pressure Monitoring Only
W3 = Wireless Vacuum Monitoring Only
W4 = Wired Pressure and Vacuum Monitoring
W5 = Wired Pressure Monitoring Only
W6 = Wired Vacuum Monitoring Only
®
-