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DN-1785:A1 • 1/12/10 — Page 1 of 2

PIBV2 and PIBV2A

Post Indicator/Butterfly Valve

Supervisory Switches

Conventional Initiating Devices

DN-1785:A1 • I-510

General

System Sensor’s PIBV2 and PIBV2A supervisory switches moni-

tor the open position of post indicator and butterfly control valves.

Robust construction. The PIBV2(A) consists of a rugged

housing, intended for indoor and outdoor use. When installed

with the actuator in the vertical position, the PIBV2(A) is NEMA

3R rated per UL.

Application flexibility. The PIBV2(A) features a flexible

design that accommodates post indicator, butterfly, and many

other types of wall post, recessed wall post and pressure

reducing valves. The PIBV2(A)’s unique bi-directional actuator

allows the unit to be installed in either rising or falling flag

installations.

Simplified operation. Installation is made easier with the

PIBV2(A)’s single-side conduit entrance. By providing a direct

conduit pathway to the electrical source, right angle fittings are

not required. Installation is further simplified by the PIBV2(A)’s

adjustable length actuator, which eliminates the need for cut-

ting the shaft.

Reliable performance.

The PIBV2

(A)

is equipped with tamper

resistant cover screws to prevent unauthorized entry. Inside, two

sets of SPDT (Form-C) synchronized switches are enclosed in a

durable terminal block to assure reliable performance.

Features

• NEMA 3R rated enclosure.

• Bi-directional actuator accommodates rising or falling flags.

• Single-side conduit entry does not require right-angle fittings.

• Adjustable length actuator eliminates the need for cutting

the shaft.

• Accommodates up to 12 AWG (3.31 mm²) wire.

• Two SPDT contacts are enclosed in a durable terminal

block for added strength.

• 100% synchronization activates both alarm panel and local

bell simultaneously.

Specifications

Contact ratings: two sets of SPDT (Form-C). 10.0 A @ 125/

250 VAC, 2.5 A @ 24 VDC.

Overall switch dimensions: 4.25" H x 3.5" W x 3.25" D (10.8

cm x 8.9 cm x 8.2 cm).

Maximum stem extension: 3-5/32” (8.0 cm).

Mounting: 1/2" NPT nipple. Acceptable PIBV2(A) mounting

positions: actuator vertical (pointing DOWN), or actuator hori-

zontal. The following mounting position is NOT accept-

able: actuator vertical (pointing UP).

Conduit entrances: one single side open for 1/2" conduit.

Operating temperature range: 32°F to 120°F (0°C to 49°C).

Enclosure rating:

UL indoor/outdoor; NEMA 3R when mounted

with the actuator vertical.

Cover tamper switch: standard with ULC model PIBV2A;

optional for UL model, P/N 546-7000.

Shipping weight: 2 lbs. (0.9 kg).

Service use:

– Automatic Sprinkler: NFPA 13.

– One or Two Family Dwelling: NFPA 13D.

– Residential Occupancies up to 4 stories: NFPA 13R.

– National Fire Alarm Code: NFPA 72.

U.S. Patent No.: 5,213,205

Engineering Specifications

Model shall be model number PIBV2(A) Post Indicator Butter-

fly Valve supervisory switch as manufactured by System Sen-

sor. PIBV2(A) shall be installed on each valve as designated

on the drawings and/or as specified herein. Switches shall be

mounted so as not to interfere with the normal operation of the

valve and shall be adjusted to operate within two revolutions

of the valve control or when the valve flag has moved no more

than one-fifth of the distance from its normal position. The

mechanism shall be contained in a weatherproof die cast

metal housing, which shall provide a side entrance for 1/2"

conduit and incorporate a 1/2" NPT nipple for attachment to

the valve body. A grounding provision is provided. The switch

assembly shall include two switches each with a rated capacity

of 10.0 A @ 125/250 VAC and 2.5 A @ 24 VDC. The cover

shall contain tamper-resistant screws for which a security

wrench will be provided with each switch. PIBV2

(A)

shall be

Underwriters Laboratories listed for indoor or outdoor use. The

PIBV2

(A)

shall be Factory Mutual, CSFM, and MEA approved.

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DN-1785:A1 • 1/12/10 — Page 1 of 2PIBV2 and PIBV2APost Indicator/Butterfly Valve Supervisory SwitchesConventional Initiating DevicesDN-1785:A1 • I-510

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