Data Sheet

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Bulletin 74.1:ACE95JR

April 2012

D102722X012

www.sherregulators.com

Type ACE95jr Tank Blanketing Valve

Introduction

Tank blanketing is the process of using a gas, usually an

inert gas such as nitrogen, to maintain a slightly positive

pressure in an enclosed storage tank. Tank blanketing

prevents a stored product from vaporizing into the

atmosphere, reduces product combustibility, and prevents

oxidation or contamination of the product by reducing

its exposure to air. Tank blanketing is utilized with

various products, including: adhesives, pharmaceuticals,

pesticides, fertilizers, fuels, inks, photographic chemicals,

and food additives.

Type ACE95jr valves are self-contained, fully

balanced, and used for accurate pressure control on

tank blanketing systems. These valves help control

emissions and provide protection against atmospheric

contamination. Type ACE95jr valves maintain a positive

tank pressure which reduces the possibility of tank wall

collapse during pump out operations and prevents a

stored product from vaporizing to atmosphere.

• Fully Balanced Plug

Design Reduces Inlet

Pressure Sensitivity

• Stainless Steel

Construction Available

• High Sensitivity

• Self-Contained

• Bubble

Tight

Shutoff

W8157

Figure 1. Type ACE95jr Tank Blanketing Valve

• Vacuum

Settings

Available

Features

Summary of content (8 pages)

PAGE 1
Bulletin 74.1:ACE95JR April 2012 Type ACE95jr Tank Blanketing Valve Features • Stainless Steel Construction Available • Fully Balanced Plug Design Reduces Inlet Pressure Sensitivity • Self-Contained • High Sensitivity • Bubble Tight Shutoff • Vacuum Settings Available W8157 Figure 1. Type ACE95jr Tank Blanketing Valve Introduction Type ACE95jr valves are self-contained, fully balanced, and used for accurate pressure control on tank blanketing systems.
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Bulletin 74.1:ACE95JR Specifications Sizes and End Connection Styles 1/2 NPT 1 x 1/2 NPT 1 NPT NPS 1/2 / DN 15, CL150 RF NPS 1 / DN 25, CL150 RF NPS 1 x 1/2 / DN 25 x 15, CL150 RF NPS 1 / DN 25, Sanitary Flange Maximum Operating Inlet Pressure(1) 200 psig / 13.8 bar Maximum Emergency Outlet (Casing) Pressure(1) 20 psig / 1.4 bar Maximum Operating Control Pressure(1) 1.5 psig / 0.10 bar Control Pressure Ranges(1) See Table 1 Maximum Differential Pressures Up to 200 psig / 13.
PAGE 3
Bulletin 74.1:ACE95JR POPPET CAGE O-RING SEAT ROLLING DIAPHRAGM VALVE CLOSED SENSING CONECTION INLET VALVE OPEN TO TANK E0205 INLET PRESSURE ATMOSPHERIC PRESSURE TANK PRESSURE Figure 2. Operational Schematic Outlet Check Valve—Prevents corrosive gases and vapors from flowing back into the blanketing system through the delivery line. Single Array Manifold (SAM)—Provides sense line connection and main valve connection through a single tank nozzle.
PAGE 4
Bulletin 74.1:ACE95JR TYPE ACE95jr BLANKETING GAS SUPPLY LINE SENSING LINE LINE STRAINER SHUTOFF VALVE TYPE 252 INLET FILTER SHUTOFF VALVE TANK VENT SHUTOFF VALVE EMERGENCY TANK VENT BLANKETING GAS TO TANK TANK BLANKETING GAS/VAPOR SPACE LIQUID Figure 3. Type ACE95jr Tank Blanketing Valve Installation When installing Type ACE95jr, the sensing line and gasto-tank line must always be above the tank liquid level and should slope down towards the tank without any traps to avoid catching of liquid.
PAGE 5
Bulletin 74.1:ACE95JR Thermal Equations Capacity Information For tanks up to 840,000 gallons / 3180 m3 capacity: Capacity tables are based on 0.97 specific gravity nitrogen. Nitrogen is the most common blanketing gas. Should you use a different gas, convert the tabular values as follows. For blanketing (pad) gases other than nitrogen, multiply the given nitrogen flow rate by the correction factors in Table 3. For gases of other specific gravities, multiply the given nitrogen flow rate by 0.
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Bulletin 74.1:ACE95JR 11.5 / 292 XP SWITCH PURGES CONTROL PRESSURE 11.8 / 300 8.5 / 216 INLET 8.2 / 208 B OUTLET INLET 1.6 / 40 8.6 / 218 A 2.5 / 64 SENSING CONNECTION 1/2 NPT Ø 12.5 / 318 INCHES / mm Figure 4. Type ACE95jr Dimensions Table 5. Type ACE95jr Dimensions BODY SIZE, NPS / DN DIMENSIONS STRUCTURE NPT CL150 RF Flange Sanitary A NPS DN 1/2 15 1 25 inches mm inches mm inches mm without Filter 3.7 94 9.7 246 ---- ---- with Filter 8.1 206 10.
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Bulletin 74.
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Bulletin 74.1:ACE95JR Industrial Regulators Natural Gas Technologies TESCOM Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Regulator Technologies, Inc. Emerson Process Management Tescom Corporation USA - Headquarters McKinney, Texas 75069-1872, USA Tel: +1 800 558 5853 Outside U.S. +1 972 548 3574 USA - Headquarters McKinney, Texas 75069-1872, USA Tel: +1 800 558 5853 Outside U.S.