2000 and 2500 Series
2
Specications
The Specications section lists the specications for the 2000 and 2500 Series. Specication is stamped on the
nameplate attached to the emergency relief vent. Refer to Product Identication and Marking section for the
nameplate details.
Connection Sizes Available
See Table 1
Pressure Ranges
(1)(2)
2000 Series:
2.0 to 32.0 oz./sq. in.
(0.5 oz./sq. in. increments)
3.5 to 55.0 in. w.c.
(1.0 in. w.c. increments)
8.6 to 138 mbar
(2.2 mbar increments)
2500 Series:
4.0. to 16.0 oz./sq. in.
(0.5 oz./sq. in. increments)
7.0 to 27.0 in. w.c.
(0.5 in. w.c. increments)
17.4 to 67.2 mbar
(2.2 mbar increments)
Vacuum Pressure Ranges
(1)
(2500 Series)
0.5, 0.75, 1 and 2 oz./sq. in.
Construction Materials
2000 Series
Base and Arm: Carbon Steel, 304 Stainless steel
and 316 Stainless steel
Disk and Seal Support: Aluminum,
304 Stainless steel and 316 Stainless steel
Seal: Buna-N, FEP Teon
®
and Viton
®
2500 Series
Base, Arm and Hood: Carbon steel,
304 Stainless steel and 316 Stainless steel
Disk and Seal Support: Aluminum and
316 Stainless steel
Seal: FEP Teon
®
, Viton
®
and Buna-N
Vacuum Spring: 302 Stainless steel
Vacuum Pallet and Vacuum Seat: Polyphenylene
Sulde and 316 Stainless steel
1. The pressure limits in this Instruction Manual and any applicable standard or code limitation should not be exceeded.
Figure 4. Product Identification and Marking
Teon
®
and Viton
®
are marks owned by E. I. du Pont de Nemours and Company.
SERIES MODEL
CONNECTION SIZE
ANSI API
2000 Series
Emergency Pressure Relief -
For Pressure Relief Only
2004 4 in. - - - -
2008 8 in. 8 in.
2012 12 in. - - - -
2016 16 in. - - - -
2018 18 in. - - - -
2020 20 in. 20 in.
2024 24 in. 24 in.
2500 Series
Emergency Pressure Relief Vent
with Vacuum -
For Pressure and Vacuum Relief
2516 16 in. - - - -
2520 20 in. 20 in.
2524 24 in. 24 in.
Table 1. Connection sizes and Model Number
HAZARDOUS LOCATION
OUTER HOUSING OF UNCOATED ALUMINUM
II 2 G c T6
OUTER HOUSING OF STAINLESS STEEL,
CARBON STEEL OR COATED ALUMINUM
II 1 G c T6
SMART WIRELESS ID MARKING
(2000 SERIES MODELS ONLY)
II 1 G c T5
Ex ia IIC T5 Ga
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