The Reliable Automatic Sprinkler Co., Inc., 103 Fairview Park Drive, Elmsford, New York 10523

Bulletin 323 Rev. E

Instructions for

Installation, Operation,

Care and Maintenance

Model B1

Accelerator

with Integral

Accelo-Check

Features

1. Quickens the operation of dry pipe valves.

2. Increases the number of automatic sprin-

klers controlled by one dry pipe valve.

3. Equalizes rapidly as dry system is being

ﬁ lled with air to required pressure.

4. Adjusts without operation for small ﬂ uc-

tuations in system air pressure.

5. Dependable in operation, compact and

light-weight construction.

6. Accelo-Check prevents water and debris

from entering critical areas, minimizing

the need of removing cover plates, etc. to

reset or clean internal mechanisms.

7. Tested and approved for use with all Reli-

able dry pipe valves and dry systems.

8. UL Listed, FM Approved

General

The Reliable Model B1 Accelerator with its integral Ac-

celo-Check (anti-flooding device) is used to speed up the

operation of both dry pipe valves (in dry-type automatic

sprinkler systems) and deluge valves (in pre-action sprin-

kler systems). Both of these system types utilize pressur-

ized air, instead of water, in their piping as to avoid expo-

sure to water sensitive areas and/or freezing conditions.

The accelerated operation of the dry pipe valve floods

the sprinkler system with water permitting a substantial in-

crease in both the number of sprinklers that can be con-

trolled by one dry pipe valve and the volume of the dry

system that can be installed.

Approvals

1. Listed by Underwriters Laboratories, Inc.

2. Underwriters’ laboratories of Canada for up to 1500

gal. (5678 liters) systems.

3. Approved by Factory Mutual Research Corporation

4. Loss Prevention Council

5. NYC B5&A No. 587-75-SA.

Patent number 3,785,440

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