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ITEM PartNo DESCRIPTION
NO.
1 GB11010 407 LOWER HSNG, 4"NPT THREAD 4” DOT 407 Pressure Relief Vent
2 GB06010 VENT, POPPET,LOW PROFILE
3 GB25010 VENT SPRING RETAINER F
F
4 GB05000 VENT PRESSURE SPRING
5 GB04001 DOT 407 VENT. L/P, UPPER HSNG, 25# DESCRIPTION 1
ITEM
PART NO.
6 GB03010 VENT RAIN COVER
1 GB19000 Upper Housing Hole Plug
7 GB19000 VENT, UPPER HOUSING HOLE PLUG 2 2
2
8 GB07000 VENT O-RING GB03020 Rain Cover Retaining Screw
8-32 x 3/8
9 GM40000 4TR GASKET TEFOSIL 4" (NEW for 2016, see p. 42) 3

10 GB12010 VENT LP, STUB END L/H
E 3 GB03010 Rain Cover E
11 GB14010 4" TTMA FLGD. L/H
4 GB04001 Upper Housing, 25#
12 GM42100 TEFLON ENCAPSULATED FLANGE
GASKET (TTMA)
5 GB05200 Pressure Spring - 25#, 30#
13 GB15010 4" ANSI FLGD L/H MAWP Vents, all others

14 GB16000 T-ENV ANSI GSKT please consult with Girard
6 GB25010 Spring Retainer 4
7 GB06010 Poppet
D D
8 GB07000 Teflon® O-Ring Pressure
5
9 GB12010 Stub End, Lower Housing
10 GB11010 4” NPS Connection Threaded
Lower Housing
6
11 GM40000 4” Teflon® Ring Gasket
7
12 GB14010 4” TTMA Flanged,
C Lower Housing C
8
13 GM42100 4” TTMA Teflon®
Envelope Gasket
10
14 GB15010 4” ANSI Flanged, 9
Lower Housing 11
15 GB16000 4” ANSI Teflon®
Envelope Gasket

B B
12 14
PERFORMANCE SPECIFICATIONS (4” DESIGN)
13 15
MAWP TEST FlOW ExPOSED
PRESSURE (SCFH) SURFACE
25 40 426,983 930 MATERIALS OF CONSTRUCTION
25 45 466,115 1083 All metallic parts 316L Stainless Steel
®
30 45 466,115 1083 O-Ring Teflon Encapsulated Silicone
A THIS IS THE PRIVATE UNLESS OTHERWISE SPECIFIED A
DIMENSIONS ARE IN INCHES
35 52.5 484,718 1156 Gasket AND CONFIDENTIAL Teflon ® .XX .015 .XXX ANGLES
.005
0 30'
PROPERTY OF GIRARD MATERIAL
EQUIPMENT INC. AND SEE BOM 4360 Old Dixie Highway Vero Beach, FL 32967
IS NOT TO BE COPIED DOT 407LT VENT, 25#, 4"
OR REPRODUCED FINISH
WITHOUT THE WRITTEN APPROVALS DATE NPT
CONSENT OF GIRARD DRAWN RDS gsh 9/9/14 SIZE REV.
9/22/14
CHECKED
EQUIPMENT INC.
SCALE
ESTIMATED WEIGHT
Repair and Disassembly: (Patent #9,121,523 B2) Pressure spring “caging” mechanism only available from Girard Equipment. C GA00010 A
1:3
41.0
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This disassembly feature allows users to easily disassemble the vent in less than one minute. Printed copy valid for 168 hours (7 days) from time of printing unless otherwise indicated "CONTROLLED COPY"
1) Remove the Plug. 2) Insert the T-Wrench into 4) Remove the Upper 5) Remove and replace
the Spring Retainer. Housing. the O-Ring.
3) Tighten the Lifting Nut.
4