Specifications - Emerson Enardo 860 Series Instruction Manual

Enardo 860 and 960 Series

Specifications

The Specifications section on this page provides specifications for the Enardo 860 and 960 Series spring-loaded
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 Figure 3
Inlet Connection Sizes
2 through 6 in. / 50 through 150 mm
Pressure Ranges
(1)(2)
0.5 to 15.0 psi
0.5 to 32.0 oz./sq. in.
1.0 to 55.0 in. w.c.
2.0 to 138 mbar
Vacuum Pressure Ranges
0.5 to 15.0 psi
0.5 to 32.0 oz./sq. in.
1.0 to 55.0 in. w.c.
2.0 to 138 mbar
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 psi, 0.5 oz./sq. in., 0.5 in. w.c. or 2.2 mbar.
X
ENARDO 860 -
Inlet
Connection
Size
(2 through
6 in.)
Vacuum Units Vacuum Setting
z = oz./sq.in. Maximum = 14.99 psig /
n = in. w.c.
mm = mm w.c.
mb = mbar
p = psi
ENARDO MODEL 860 SPRING-LOADED PRESSURE/VACUUM RELIEF VALVE MODEL NUMBER
-
ENARDO 960 -
Inlet Housing Material
Connection
1 = Aluminum
Size
4 = 316 Stainless
(2 through Steel
6 in.) 5 = Carbon Steel
Vacuum Units Vacuum Setting
z = oz./sq.in. Maximum = 14.99 psig /
n = in. w.c.
mm = mm w.c.
mb = mbar
p = psi
ENARDO MODEL 960 SPRING-LOADED PRESSURE/VACUUM RELIEF VALVE MODEL NUMBER
Teflon and Viton are marks owned by E. I. du Pont de Nemours and Co.
® ®
2
(1)(2)
-
Outlet Housing Material
Connection
1 = Aluminum
Size
4 = 316 Stainless 1 = PPS Polyphenylene
(3 through Steel Sulfide (max 5 psi)
8 in.) 5 = Carbon Steel 2 = 316 Stainless steel
(max 14.99 psi)
-
Weight Material
C = Carbon Steel
1034 mbarg Zinc-Plated
S = 316 Stainless steel
L = Lead
Pallet and Seat
Material
1 = PPS Polyphenylene 1 = FEP
Sulfide (max 5 psi) 2 = Nitrile (NBR)
2 = 316 Stainless steel 3 = Fluorocarbon
(max 14.99 psig)
/
Weight Material
C = Carbon Steel
1034 mbarg Zinc-Plated
S = 316 Stainless steel
L = Lead
Figure 3. Pressure/Vacuum Relief Valve Model Number
Construction Materials
Housing: Aluminum, Stainless steel or Carbon steel
Seat / Pallet: Polyphenylene Sulfide (PPS) or 316
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 IEC 60079-0:2018
EN IEC 60079-11:2012
EN ISO 80079-36:2016
EN ISO 80079-37:2016
Pallet and Seat Pallet Seal Body/Seat/Lid Seal
Material Material
1 = PTFE Body and
1 = FEP
2 = Nitrile (NBR)
2 = Nitrile (NBR)
3 = Fluorocarbon
3 = Fluorocarbon
(FKM)
-
Options
0 = No Options
F = Flat Face Flange (standard for Aluminum)
R = Raised Face Flange (standard for CS, DI, SS)
X = Epoxy
-
Pallet Seal Body/Seat/Lid Seal
Material Material
1 = PTFE Body and
FEP Seat/Lid
2 = Nitrile (NBR)
3 = Fluorocarbon (FKM)
(FKM)
-
Options
0 = No Options
F = Flat Face Flange (standard for Aluminum
R = Raised Face Flange (standard for CS, DI, SS)
X = Epoxy
Stainless steel (standard above 5 psi)
or Viton
®
or Viton
® ®
-
Pressure Units Pressure Setting
Material z = oz./sq.in. Maximum = 14.99 psig /
n = in. w.c.
FEP Seat/Lid mm = mm w.c.
mb = mbar
p = psi
(FKM)
Pressure Units Pressure Setting
z = oz./sq.in. Maximum = 14.99 psig /
n = in. w.c. 1034 mbarg
mm = mm w.c.
mb = mbar
p = psi
®
/
1034 mbarg
/