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ACE95 Series

D102775X012

Instruction Manual
Form 5667

04/01

www.FISHERregulators.com

Figure 1. Type ACE95 Tank Blanketing Valve

Introduction

Scope of Manual

This instruction manual provides installation, startup,
and maintenance procedures for the ACE95 Series
(Type ACE95 and Type ACE95Sr) tank blanketing
valves. See figures 1 and 2.

Product Description

ACE95 Series tank blanketing valves are self-con-
tained, balanced, pilot operated, and used for accurate
pressure control on gas blanketing systems. These
valves help control emissions and provide protection
against atmospheric contamination. ACE95 Series

Figure 2. Type ACE95Sr Tank Blanketing Valve

Type ACE95 and Type ACE95Sr
Tank Blanketing Valves

valves maintain a positive pressure and thereby reduce
the possibility of tank wall collapse during pump out
operations, in addition to preventing liquid from vaporiz-
ing into the atmosphere.

Specifications

The following page lists specifications and ratings for
ACE95 Series tank blanketing valves. Factory specifi-
cations are stamped on a nameplate fastened to the
upper actuator case of the valve.

W8156

W8155

Patent Numbers 5,884,655 and 5,836,348

Summary of Contents for ACE95

Page 1: ...n gas blanketing systems These valves help control emissions and provide protection against atmospheric contamination ACE95 Series Figure 2 Type ACE95SrTank BlanketingValve Type ACE95 andType ACE95Sr Tank BlanketingValves valves maintain a positive pressure and thereby reduce the possibility of tank wall collapse during pump out operations in addition to preventing liquid from vaporiz ing into the...

Page 2: ...aphragm actuator The over sized actuator offers high sensitivity to changes in tank Table 1 Outlet Control Pressure Ranges E R U S S E R P L O R T N O C T E L T U O E G N A R L A I R E T A M G N I R P S H T G N E L E E R F G N I R P S m m S E H C N I R E T E M A I D E R I W G N I R P S m m S E H C N I r a b m 2 1 o t 2 1 c w n i 5 0 o t 5 l e e t S s s e l n i a t S 5 8 9 6 5 7 2 2 5 3 2 2 8 8 0 1...

Page 3: ... Schematic valve open INLET PRESSURE TANK PRESSURE INLET BLEED PRESSURE PILOT SPRING DIAGNOSTIC PORT ORIFICE PILOTVALVE OPEN ROLLING DIAPHRAGM ATMOSPHERIC PRESSURE RANGE SPRING SENSING LINE E0622 E0623 where conditions exceed any ratings of the adjacent piping or piping connec tions To avoid such injury or damage provide pressure relieving or pressure limiting devices as required byTitle 49 Part 1...

Page 4: ...se It displays the model number serial number a blanket ing gas supply pressure range and the maximum inlet pressure and set pressure These must agree with the system that you are blanketing The serial number will be needed in any communication with your Fisher Sales Representative or the Fisher Sales Office 3 Clean the gas blanketing supply lines of all dirt and foreign material before connecting...

Page 5: ...valve Note Safety considerations may dictate full port shut off valves between the tank and blanketing valve and at the valve inlet Startup Adjustment and Shutdown Note Tank vents and safety relief valves must be in place and operating Always open the outlet valve before the inlet valve Operation in the reverse order could result in inlet pressure being applied to the actuator casing poten tially ...

Page 6: ...c pressure Pressure to Start Opening PilotValve The diagnostic pressure drops to this value as the valve senses decreasing tank pressure The main valve remains closed at this pressure Pressure to Start Opening MainValve The diagnostic pressure drops to this level as the tank pressure decreases and reaches the valve set point The pilot is fully open at this pressure Pressure to Fully Open Main Valv...

Page 7: ... S S I E V L A V N I A M N E H W r a b G I S P N E P O Y L L U F r a b 6 3 1 5 r a b 5 3 0 5 r a b 0 2 9 2 r a b 3 0 5 r a b 1 4 0 6 r a b 0 4 9 5 r a b 5 2 6 3 r a b 8 0 2 1 r a b 8 4 0 7 r a b 7 4 9 6 r a b 0 3 3 4 r a b 3 1 9 1 r a b 5 5 0 8 r a b 4 5 9 7 r a b 6 3 1 5 r a b 9 1 7 2 r a b 2 6 0 9 r a b 1 6 9 8 r a b 0 4 9 5 r a b 3 2 4 3 r a b 9 6 0 0 1 r a b 8 6 9 9 r a b 6 4 6 6 r a b 9 2 2 4...

Page 8: ...e Spring 121 to 200 psig 8 3 to 13 8 bar Table 6 Type ACE95 Diagnostics Table Cv 5 through 10 Inlet Pressure Range Spring 25 to 50 psig 1 7 to 3 5 bar 2 Remove the upper and lower diaphragm plates keys 10 and 48 and the diaphragm key 11 The actuator gasket key 12 sits on top of the diaphragm In cases where the pressure range is positive the upper diaphagm plate is larger than the lower diaphragm p...

Page 9: ...Table 7 Type ACE95 Diagnostics Table Cv 5 through 10 Inlet Pressure Range Spring 51 to 120 psig 3 5 to 8 3 bar Table 8 Type ACE95 DiagnosticsTable Cv 5 through 10 Inlet Pressure Range Spring 121 to 200 psig 8 3 to 13 8 bar 3 Remove the plug key 22 from the main valve key 25 See figure 7 4 Insert wooden dowel rod or similar blunt tool through the bottom of the bonnet bore to remove the cage keys 35...

Page 10: ...nlet Pressure Range Spring 51 to 120 psig 3 5 to 8 3 bar 5 Press the lower cage key 35 and upper cage key 40 together to ensure the groove in the lower cage engages the bead on the rolling diaphragm key 38 Note Ensure that the rolling diaphragm bead is positioned so that it sits in the groove of the lower cage see figures 8 and 9 If it does not the rolling diaphragm was installed upside down in Ca...

Page 11: ...Fasten the plates together with the diaphragm bolt key 15 and the diaphragm retaining nut key 13 The diaphragm retaining nut sits on the upper diaphragm plate Apply Loctite 222 to the diaphragm bolt Note Two different diaphragm plates are used when the pressure range is positive In cases where the pressure range is posi tive the upper diaphagm plate key 10 is larger than the lower diaphragm plate ...

Page 12: ...15X02 1 0 to 1 0 in wc 2 to 2 mbar GC053208X02 5 to 0 5 in wc VAC 12 to 1 2 mbar GC053208X02 14 O Ring Nitrile GC070173X02 EPDM FDA GC070173X52 FKM GC070173X12 FFKM GC070173X62 15 Diaphragm Bolt GC053210X02 16 O Ring 2 required Nitrile 1F115306992 EPDM FDA 1F1153X0062 FKM 1F1153X0022 FFKM 1F1153X0032 Figure 7 Typical Main Valve and Spring Type ACE95Sr shown 10 Tighten all nuts key 31 uniformly 11 ...

Page 13: ... 1C7822X0112 Type ACE95 Cv 5 through 10 Nitrile 1D2375X0062 EPDM FDA 1D2375X0082 FKM 1D237506382 FFKM 1D237506372 Type ACE95Sr Cv 20 through 60 Nitrile 1D785306992 EPDM FDA 1D7853X0032 FKM 1D7853X0042 FFKM 1D7853X0012 25 Piston main valve Type ACE95 Cv 1 through 4 GC053203X02 Type ACE95 Cv 7 5 through 10 GC053219X02 Type ACE95Sr Cv 20 through 60 GC053211X02 26 Spring main valve Type ACE95 Cv 1 thr...

Page 14: ...Steel GC040708X02 46 Seal Bushing 4 required Type ACE95 only Nitrile GC071202X32 EPDM FDA GC071202X32 FKM GC071202X32 FFKM GC071202X32 47 Flat Washer 20 required steel actuator only GC060804X22 48 Diaphragm Plate lower Positive Spring Range 3 inch 76 mm diameter GC260113X02 Negative Spring Range 9 inch 229 mm diameter GC260104X02 49 Spring Guide Type ACE95Sr only 25 to 50 psig 51 to 120 psig GC050...

Page 15: ...1 2 3 4 5 6 7 8 9 10 11 12 13 14 17 18 50 51 15 16 19 40 28 35 32 31 47 36 29 30 28 26 49 22 23 24 21 20 27 42 39 38 33 41 32 37 25 162 48 LOCATE GROOVE IN LOWER CAGE FOR ROLLING DIAPHRAGM BEAD E0625 E0626 LOCATE GROOVE IN LOWER CAGE FOR ROLLING DIAPHRAGM BEAD ...

Page 16: ...rding the products or services described herein or their use or applicability We reserve the right to modify or improve the designs or specifications of such products at any time without notice For information contact Fisher Controls Marshalltown Iowa 50158 USA 28320 Gallardon France Sao Paulo 05424 Brazil Singapore 128461 Printed in U S A ACE95 Series Figure 9 Type ACE95Tank Blanketing Valve 1 2 ...

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