ZURN PEX Bedienungsanleitung

Z U R N P E X®

Residential

Fire Protection Systems

Installation Instructions

Zurn PEX® Residential Fire Protection Addendum to Residential Plumbing Installation Guide (ZMKTG370-04)

This manual is an addendum to the Zurn PEX Residential Plumbing Installation Guide (ZMKTG370-04) and Zurn PEX Commercial Plumbing

and Layout Guide (ZMKTG370-60). Its purpose is to provide additional information relevant to using Zurn PEX systems in residential ﬁre

protection systems.

System Overview

Zurn PEX oers multipurpose ﬁre protection systems as described

by the National Fire Protection Association 13D standard (NFPA

13D). A multipurpose system is often referred to as a combination

system because the tubing serves the needs of both the cold

domestic water distribution and ﬁre protection system. These

types of systems provide an array of beneﬁts including:

• Lower cost than traditional “stand-alone”

ﬁre protection systems

• Provides conﬁrmation that the system is working

each time cold domestic water is used

• Water is constantly refreshed in the sprinkler piping, eliminating

the need for backﬂow preventers

• Both domestic water and ﬁre systems can be installed by same

contractor, eliminating potential scheduling issues

• Utilizes ﬂexible Zurn PEX tubing that provides fewer

connections, reducing the potential for leaks

• Zurn PEX systems resist freeze damage

INTENDED PURPOSE

Zurn PEX Fire Protection Systems are intended to be used in

product combinations tested by NSF International to UL 1821.

Zurn PEX products have only been tested with other Zurn

PEX products and are not intended to be used with any other

manufacturer’s products.

Zurn PEX Fire Protection Systems are UL 1821 listed to be installed

when protected by any of the constructions referenced below:

• 3/8" [9.5 mm] thick or thicker gypsum wallboard; or

• A suspended membrane ceiling with lay-in panels or tiles

having a weight of not less than 0.35 lb/ft2[1.76 kg/m2] when

installed with metallic support grids; or

• One layer of 1/2" [12.7 mm] plywood or plywood sots.

The tubing and ﬁttings are intended for use in multipurpose

systems without a ﬁre department connection.

The tubing and ﬁttings are intended to be used in areas where the

ambient temperature does not exceed 120°F.

TABLE OF CONTENTS - BY SECTION

SYSTEM OVERVIEW 2

INTENDED PURPOSE 2

STANDARDS, RATINGS, AND CERTIFICATIONS 3

TYPES OF MULTIPURPOSE FIRE PROTECTION SYSTEMS 3

SYSTEM DESIGN 3

PRODUCT DESCRIPTIONS 3

SPRINKLERS 3

TUBING 4

QICK SERT CR® FITTING SYSTEM 4

ZURN PEX XL BRASS FITTING SYSTEM 4

MAKING CRIMP CONNECTIONS 5

COLD WEATHER INSTALLATION CONNECTIONS 5

COPPER CRIMP RING SYSTEM 5

MAKING THE CONNECTION WITH THE LARGE CRIMP TOOL 5

USING THE ZURN GO/NO-GO GAUGE 6

ADJUSTING THE LARGE CRIMP TOOL 6

LARGE DIAMETER COMPACT COPPER CRIMP TOOL OPERATING INSTRUCTIONS (QCRTLDM) 7

JAW INSTALLATION INSTRUCTIONS 7

TUBING INSTALLATION 8

TUBING SUPPORTS AND FITTING 8

UNCOILING ZURN PEX TUBING 8

SUPPORTING ZURN PEX DISTRIBUTION LINES 8

TUBING EXPANSION 9

BENDING ZURN PEX TUBING 9

METAL STUDS 9

INSULATING TUBING 9

NAILING PLATES 9

SPRINKLER ADAPTER FITTINGS 10

TESTING 10

APPENDIX 11

TABLE 1: PRESSURE DROP FOR ZURN PEX TUBE - PSI/FOOT 11

TABLE 2: FITTING EQUIVALENT LENGTH - FEET OF TUBE 11

ZURN PEX® RESIDENTIAL FIRE PROTECTION SYSTEMS

INSTALLATION INSTRUCTIONS

STANDARDS, RATINGS, AND CERTIFICATIONS

Zurn Fire Protection PEX tubing, ﬁttings and copper crimp ring

systems are UL 1821 listed for use in multipurpose systems as

described in NFPA 13D.

Zurn PEX products are manufactured in accordance with ASTM

F876, ASTM F877, ASTM F1807, ASTM F2159, and CSA B137.5

standards and are listed by NSF International as such.

Zurn PEX products are listed to NSF International Standards

14 and 61.

Zurn PEX systems carry the following pressure and

temperature ratings:

• 160 psi at 73°F

• 130 psi at 120°F (Fire Protection Rating)

• 100 psi at 180°F

• 80 psi at 200°F

TYPES OF MULTIPURPOSE

FIRE PROTECTION SYSTEMS

There are three types of multipurpose systems as described

in NFPA 13D-Standard for the Installation of Sprinkler Systems

in One and Two Family Dwellings and Manufactured Homes. A

multipurpose ﬁre protection system can be installed in accordance

with any of these three systems or a combination of each in

accordance with NFPA 13D.

Gridded

System is set up as a grid and is the preferred

system type because of its simple design and

superior hydraulic characteristics. Sprinklers

are supplied with water from both sides, while

branch lines help transfer water.

Looped

Outer sprinklers on the perimeter of the

ﬂoor level are connected in a loop so water is

supplied from both sides. Sprinklers within the

loop are supplied with branch tee connections

o the loop.

Straight

Sprinklers are supplied with water in only one direction. Hydraulic

characteristics are not as good as other designs, therefore this

method is not widely used.

SYSTEM DESIGN

Design of a residential ﬁre protection system shall be in accordance

with all requirements of the NFPA 13D standard. Construction

plans, including sprinkler head locations, piping layout, and

hydraulic demand data, should be submitted to the local authority

having jurisdiction for approval prior to installation. Any deviations

or changes in the plans after approval shall have permission by the

same authority.

Product Descriptions

SPRINKLERS

Only sprinklers listed in accordance with NSF 61 can be used

in Zurn PEX multi-purpose systems. In addition, the sprinkler

must meet the requirements of NFPA 13D, speciﬁcally UL 1626 –

Residential Sprinklers for Fire Protection Service.

Residential sprinklers operate under various temperatures ranging

from 150°F to 175°F. In addition, all sprinklers vary in their speciﬁc

K-value, wetting density capability, ﬂow volume, and operating

pressure at a speciﬁed design coverage area. Sprinklers are

available for various installations, and it is up to the designer to

specify the appropriate sprinkler and its operating conditions.

Do not store sprinklers, sprinkler cover plates, or sprinkler

accessories in areas that may experience excessive heat over 100°F.

Concealed Sprinklers

These sprinklers are ﬂush against the ceiling and are covered with a

special cover plate. In operation, the plate falls o at approximately

135°F and as the heat increases the sprinkler operates. It is

important to never paint over the special cap. It may interfere with

the operation of the sprinkler.

Recessed Pendent Sprinklers

These sprinklers are visible on the ceiling and do not have a cover

plate. In operation, high heat in the range of 150°F to 175°F will

cause the sprinkler to operate.

Recessed Horizontal Sidewall Sprinklers

These sprinklers are visible on the wall and do not have a cover

plate. In operation, high heat in the range of 150°F to 175°F will

cause the sprinkler to operate.

ZURN PEX® RESIDENTIAL FIRE PROTECTION SYSTEMS

INSTALLATION INSTRUCTIONS

TUBING

UV Resistance – 6 months, please see precautions below.

Chlorine Resistance – 5306 designation, generally a continuously

circulating hot water plumbing loop.

Zurn PEX tube 2" and smaller meets the 25/50 ﬂame spread index/

smoke density index requirements speciﬁed in building codes for

use in plenums when encased with an appropriately listed 1/2"

thick ﬁberglass insulation. Un-insulated installations using special

accessories may also comply, please consult with the factory

for details.

Zurn PEX Tubing Installation Precautions

• Should not be exposed to or stored in direct UV light. When

possible, protect the tubing with an opaque covering.

• Should not be exposed to a direct ﬂame. Braze, solder, or weld

and allow to cool prior to connecting Zurn PEX to metal pipe.

• Should never be used for electrical grounding. Consult the NEC

for recommended grounding methods when PEX is used.

• Do not install within 24" of air return grills or other opening

in the ceiling.

• Should not be installed in conditions near extreme heat.

• Painting Zurn PEX is unnecessary. Water-based latex or acrylic

paints will not aect Zurn PEX tubing; however, oil-based

paints or lacquers should never be applied to Zurn PEX tubing.

• Should only be installed in operating conditions that are

consistent with pressure and temperature ratings that appear

on the tubing and applicable standards.

• Should not be subjected to prolonged exposure to free chlorine

concentrations greater than 4 ppm.

• Zurn PEX tubing that has been crushed or scratched should be

removed from the system and replaced.

• Should never come into contact with any chemicals, pipe

thread compounds, putty, mineral, or linseed oil products.

QICK SERT CR®FITTING SYSTEM

Zurn PEX Qick Sert CR ﬁttings are molded from a blend of highly

engineered polymers. The inherent qualities of the polymers

make Qick Sert CR ﬁttings highly resistant to chlorine and other

chemicals present in potable water.

Qick Sert CR Fittings Installation Precautions

• Should only be used in operating conditions that are consistent

with the temperature and pressure ratings of the tube as well as

applicable standards.

• Should not be painted.

• Should not be exposed to direct UV light. When possible,

protect ﬁttings with an opaque covering.

• Male pipe threads must only use PTFE tape as a thread sealant.

• Should not be exposed to cleaners, chemicals, solvents,

sealants, or glues as they could be damaged from contact.

• Should always be stored in clean bins or containers, preferably

in the original packaging.

ZURN PEX XL BRASS FITTING SYSTEM

With over 30 years of installations, Zurn PEX XL brass ﬁttings are

the reliable joining method for ﬂexible piping.

XL Brass Fittings Installation Precautions

• Should only be used in operating conditions that are consistent

with the temperature and pressure ratings of the tube as well as

applicable standards.

• Should not be used in reverse osmosis systems.

• Should not be used in areas with known localized aggressive

water chemistries.

ZURN PEX® RESIDENTIAL FIRE PROTECTION SYSTEMS

INSTALLATION INSTRUCTIONS

MAKING THE CONNECTION WITH

THE LARGE CRIMP TOOL

1 Measure and cut the tube. Be sure

you have a square burr-free cut. An

uneven or jagged cut may cause an

improper connection.

2 Next, slip a copper crimp ring onto the tube.

Do not use hose clamps!

3 Now insert the ﬁtting into the tube

up to the ﬁtting shoulder. Position the

crimp ring 1/8" to 1/4" from the end of

the tube. An improperly positioned ring

may produce a weak connection. Ring

may be squeezed to hold it in place until

step 4 is completed.

4 Position the tool so the crimp ring is

completely covered by the tool jaws.

Keep the tool at a 90° angle to the ﬁtting

and close it completely. Squeeze handles

together to complete the crimp.

5 Open the tool handles to release jaws from the crimped ﬁtting.

6 Measure the crimped ring with

Zurn “Go/No-Go” gauge. See table

below. Do not measure bumps on

ring where jaws met. If “Go” on

gage does not ﬁt, or if “No-Go”

does ﬁt, then cut out connection,

replace ﬁtting and ring, adjust and

calibrate the tool, and recrimp.

The following dimensions are the ASTM maximum and minimum crimped

ring diameters for crosslinked polyethylene (PEX) pipe installations.

NOTE: Using the large crimp tool for anything other than its intended use

will void the warranty. For troubleshooting and repair assistance, do not

return tool directly to wholesaler. Call Zurn Customer Care for assistance at

1-855-ONE-ZURN. See www.zurn.com for warranty information.

WARNING: This product contains a chemical known to the State of

California to cause cancer, birth defects and other reproductive harm

ADVERTENCIA: Este producto contiene una sustancia química que el Estado

de California como causante de cáncer, defectos de nacimiento y otros daños

reproductivos

STANDARD TUBE SIZE > 3/8" 1/2" 3/4" 1"

Minimum Diameter 0.580" 0.700" 0.945" 1.175"

Maximum Diameter 0.595" 0.715" 0.960" 1.190"

Variation in ring diameter (out-of-round) should not exceed 0.006".

1/8¨ to 1/4¨

Crimp Ring

Spacing

Fitting

Shoulder

Fitting

Shoulder

1/8" to 1/4"

Crimp Ring

Spacing

Making Crimp Connections

COLD WEATHER

INSTALLATION CONNECTIONS

Crimps are intended to be made in general working temperatures

above 32°F. However, in extreme temperatures down to 0°F, we

recommend more frequent gauging to ensure in speciﬁcation

crimps are being made.

Zurn PEX oers the following crimp systems for the installation

of multipurpose ﬁre protection systems: Copper crimp ring and

QickCap® copper crimp ring with positioning end cap. To choose

the crimp system most appropriate for your installation, consider

factors relative to your jobsite priorities.

COPPER CRIMP RING SYSTEM

• Proven system for over 30 years

• Copper Crimp Ring, QCR_X,

available in 3/8"-2"

• QickCap Copper Crimp Ring

with Positioning Cap,

• QCR_XPC, is available in 1/2"-2"

• Go/No-Go Gauge

• 25-year system warranty

Listings

By NSF International as meeting the following standards:

• ASTM F877

• ASTM F1807

• CAN/CSA B137.5

• NSF Standard 14

ZURN PEX® RESIDENTIAL FIRE PROTECTION SYSTEMS

INSTALLATION INSTRUCTIONS

USING THE ZURN GO/NO-GO GAUGE

After making a crimp connection, use

the appropriate opening of this ﬂat

“Go/No-Go” Gauge to check your

ﬁnished crimp. The “Go” opening

should go freely across a crimped

ring anywhere on its diameter with

the possible exception of the upset

area on the ring surface caused by

the tool jaws closing. Do not force the gauge across the ring. The

“No-Go” opening should not go across a crimped ring anywhere.

If the crimp fails either test, cut out the ﬁtting and replace.

DO:

Always place the gauge opening on

the crimp ring at a 90° angle for an

accurate check.

Go and No Go Openings

No Go

Be certain to use the gauge opening sized

for the diameter of your tube.

We recommend you check every ﬁnished

crimp with this gauge.

DO NOT:

Do not slide the gauge onto the

connection. Push it directly onto the

crimp ring.

Yes

Do not try to save time by recrimping a

crimp that does not gauge properly. The

ﬁtting must be cut out and replaced.

Do not modify the gauge opening for

any reason. They have been carefully

manufactured to .002" tolerance.

ADJUSTING THE LARGE CRIMP TOOL

Zurn Crimp Tools are factory set to provide proper crimps. This

should be checked before use by making a test crimp connection

and checking it with the crimp gauge. As long as the ﬁnished crimp

connection gauges properly, there is no need to adjust the tool.

1 Loosen the bottom Locking Setscrew two turns using the hex

wrench provided with the tool.

2 Close the tool until the jaws just touch and increased resistance

is felt. This is the pre-load point.

3 Turn the top Adjusting Setscrew until the distance between

the raised “+” marks on the handles is between 7" and 8-1/2"

for QCRT2T, 3T, JT, and 4T. The distance for QCRT5T should

be 13". Tighten the bottom Locking Setscrew. See Warning for

QCRT2T, 3T, JT, 4T, and QCRT5T tool.

4 Make a test crimp connection and check it with the “Go”

and “No-Go” openings of the gauge. If the “No-Go” opening

goes over the crimped ring, the tool is too tight. The distance

between the “+” marks should be decreased. If the “Go”

opening does not go over the crimped ring, the tool is too loose

and the distance between the “+” marks should be increased.

5 Apply a light oil to the pivot points each time the tool is

adjusted. Failure to lubricate the tool will shorten its life.

WARNING: Increasing the pre-load distance beyond 9" for the QCRT2T, 3T,

JT, 4T or 13" for the QCRT5T will make the tool hard to use and shorten tool life

because of excessive stress.

QCRT2T, 3T, JT, 4T

'B'

'A'

7"-8-1/2"

Adjusting Screw

Locking Screw

ZURN PEX® RESIDENTIAL FIRE PROTECTION SYSTEMS

INSTALLATION INSTRUCTIONS

LARGE DIAMETER COMPACT COPPER CRIMP TOOL

OPERATING INSTRUCTIONS (QCRTLDM)

1 Cutting Zurn PEX Tubing –

Measure and cut the tube. Be sure

you have a square burr-free cut.

An uneven or jagged cut may

cause an improper connection.

2 Install Copper Crimp Ring – Slip a

copper crimp ring onto the tube.

3 Install Fitting – Insert the ﬁtting into

the tube up to the ﬁtting shoulder. The

copper crimp ring should be positioned

1/8"-1/4" from the end of 1" diameter

tube, 1/4"-3/8" from the end of 1-1/4"

and 1-1/2" tube, and 3/8"-1/2" from the

end of 2" tube.

4 Crimping – Load ﬁtting assembly into

the tool. Position the tool such that the

crimp ring is completely covered by the

tool jaws. Conﬁrm the tubing is at a 90°

angle to the ﬁtting and close jaw. Hand

tighten the nut to hold ﬁtting assembly

in place.

5 Drive the nut down with an impact

wrench until blue LED light turns on.

6 Checking – Check crimp using the

supplied “G0 Gauge.”

JAW INSTALLATION

INSTRUCTIONS

1 Open clamp, then press down on the

keyed slot to loosen jaw.

2 Continue to hold in the keyed slot,

turn tool around and move key out of

position. Remove jaw from clamp.

3 Insert new crimping jaw.

4 Rotate key back into position until key

clicks to lock jaw in place. Repeat for

other jaw.

ZURN PEX® RESIDENTIAL FIRE PROTECTION SYSTEMS

INSTALLATION INSTRUCTIONS

Tubing Installation

TUBING SUPPORTS

AND FITTING

• Do not use supports that have sharp

edges which could damage the tubing.

Tube supports should allow free

tubing movement.

• Do not install Zurn PEX within 6" of

any gas appliance single wall vent.

The exception is when double walled

B-vent is used, which has a minimum

clearance of 1".

• It is acceptable to run Zurn PEX

tube next to normal HVAC ductwork,

provided the tubing cannot be cut

or abraded by sharp edges of the

duct work.

• It is acceptable to install Zurn PEX

tubing within 12" of recessed light

ﬁxtures only when insulation has been

installed with the speciﬁc purpose

of protecting the tubing from

excessive heat.

• When Zurn PEX tubing is free to

uniformly expand, it is resistant to

freeze damage in an accidental freeze.

However, if Zurn PEX tubing is to be

installed in an area subject to regular

freezing conditions, we recommend

that the tubing be insulated or

otherwise protected as required by

local code.

• Zurn PEX tubing is approved for water

distribution only and should not be

used for distribution of petroleum

based products such as liquid

petroleum (LP) or natural gas.

UNCOILING

ZURN PEX TUBING

For ease of installation Zurn recommends

using the Zurn PEX dual coil uncoiler,

QDISP; the Zurn PEX pipe dispenser, QHD;

or the Zurn PEX portable uncoiler.

SUPPORTING ZURN PEX

DISTRIBUTION LINES

Note: Zurn PEX should be supported or

strapped every 32" when hung from ﬂoor

joists or running across rafters. When

supporting tube bundles, use a strap to

support the entire bundle.

Horizontal runs should be supported

every 32".

32”

Always cut the pipe longer than necessary

to allow some slack for any contraction

in the pipe. 1/8" per foot of length is

usually enough.

Strapping support should be ﬁrm but loose

enough to allow the pipe to move back and

forth as it expands and contracts.

Straps can be as far as 6' apart if the pipe is

continuously supported.

Vertical runs need support at every

ﬂoor level.

Zurn PEX straps and hangers hold pipe

in position and prevent strain on ﬁttings

when the pipe is bent.

Always strap

pipe down

before bending.

Since Zurn PEX tubing expands or

contracts 1" for every 100' of pipe for every

10° of temperature change, you must allow

for expansion and contraction in long runs

with a 12" horizontal oset.

12"

ZURN PEX® RESIDENTIAL FIRE PROTECTION SYSTEMS

INSTALLATION INSTRUCTIONS

IMPORTANT: When running Zurn PEX tubing, be sure to keep it away from potential sources of heat. Maintain a minimum of 12" between Zurn PEX and any recessed

light ﬁxture and a minimum of 6" between Zurn PEX and any gas appliance vent.

The use of zip ties to attach Zurn PEX to DWV piping is acceptable so long as the ties leave enough room for free movement of the tubing.

NOTE: When installing runs of Zurn PEX, it is sometimes necessary to pull one tube past another. Care should be taken to make sure that the friction of the moving tube

does not burn or wear a notch in the stationary tube. If this occurs, the notched section of the tube must be cut out and replaced.

TUBING EXPANSION

Zurn PEX tubing should not be pulled tight during installation.

Adequate slack should be determined in order to prevent

the tubing from exerting tensile loads on the connections

to the ﬁttings.

Allow 1/8" per foot of tube length as slack. This should cover

installations from 35°F to 160°F.

BENDING ZURN PEX TUBING

The minimum bend radius for Zurn PEX is 6 times the outside

diameter of the tubing, when bending it with the natural curvature

of the coil.

Note: If you must bend against the natural curvature of the coil,

these minimums must be multiplied by 3.

METAL STUDS

Protective sleeves or bushings should be used on Zurn PEX tubing

when penetrating metal studs. Sleeves and bushings are not

required when penetrating ordinary wood or particle board if the

holes are at least 1/8" larger than the tube size and tube movement

is not restricted.

INSULATING TUBING

Zurn PEX is resistant to freeze damage; however, installation

speciﬁc variables can aect the performance of the system if it

is allowed to freeze up. In general, plumbing codes specify that

tubing run through attics and exterior walls should be insulated.

As such, Zurn PEX tubing should be insulated according to code

requirements. Insulation that is typically used in copper and

CPVC installations would provide equivalent protection for

Zurn PEX tubing.

Note: When using expanding foam to insulate tubing, please

contact Zurn for recommendations. While many expanding foams

have been tested and have shown no adverse eects to PEX

tubing, we cannot guarantee all foams are the same.

NAILING PLATES

Nailing plates should be used when Zurn PEX tubing is passing

through a stud within 2" of a nailing surface. Using a nailing plate

minimizes the possibility of damage to the tube from nails or

drywall screws.

Note: Best results are achieved by using clamps, pipe insulators,

and strapping designed for plastic plumbing systems.

TUBING SIZE OUTER DIAMETER MINIMUM BEND RADIUS

3/8" .500" 3.00"

1/2" .625" 3.75"

3/4" .875" 5.25"

1" 1.125" 6.75"

1-1/4" 1.375" 8.25"

1-1/2" 1.625" 9.75"

2" 2.125" 12.75" Wall Stud

ZURN PEX® RESIDENTIAL FIRE PROTECTION SYSTEMS

INSTALLATION INSTRUCTIONS

Sprinkler Adapter Fittings

Zurn PEX oers sprinkler adapter ﬁttings for the

installation of its multipurpose ﬁre protection

systems. All adapter ﬁttings are designed for side

mounting onto a ceiling joist or wall stud. The choice

of adapter ﬁtting, sprinkler, and placement shall be

in accordance with the approved system design and

NFPA 13D requirements.

1 Use the design layout to determine the type of sprinkler

and adapter ﬁtting required in a speciﬁc location. Sprinkler,

sprinkler placement, and spacing are dictated by the design.

2 The design may call for a general area for sprinkler placement,

for example within a 2 foot radius of a speciﬁc location. This

is intended to leave the installer with the discretion to avoid

any obstructions that may interfere with sprinkler discharge

such as fans, surface mounted lights, beams, and slopes. Please

refer to the applicable sections of NFPA 13D for more speciﬁc

requirements.

3 Attach the sprinkler adapter to the structure using #10 x 1-1/4"

deck screws. The height at which the adapter ﬁtting is mounted

will vary based on sprinkler type chosen. Please refer to

sprinkler manufacturer’s technical data sheet for guidance. The

slotted screw-hole design will allow for slight modiﬁcation as

necessary. It is recommended that the sprinkler adapter ﬁttings

be installed prior to installing the tubing.

4 Use the procedures from the preceding sections when making a

crimp to the sprinkler adapter ﬁtting.

5 Install the sprinkler with protective cap using the appropriate

sprinkler wrench.

Testing

Pressure Testing

Each completed installation must be pressure tested in accordance

with NFPA 13D which calls for testing at normal operating pressure.

If local code requirements are more stringent, they should prevail.

Flow Testing

To ensure a properly designed Zurn PEX Fire Protection System has

been installed, a ﬂow veriﬁcation test of the two most hydraulically

remote sprinkler heads is necessary. All information must be

recorded and ﬁled accordingly. This is the installer’s responsibility.

1 With the water turned o and drained, carefully unscrew

the most hydraulically remote sprinkler head(s) using the

appropriate sprinkler head tool.

2 Install an appropriate ﬂow test kit by threading 1/2" male

adapter ﬁtting(s) into sprinkler adapter ﬁtting using thread seal

tape to make a water tight connection.

3 Assemble the remaining kit including the properly sized oriﬁce

and be sure valve on kit is closed.

4 Open main shut o valve and purge out the air in the system

using the valve on the ﬂow kit. Once all air is purged the system

should be pressurized to its working pressure.

5 Record static pressure readings at the manifold and

at the test kit.

6 Ensure large 30 gallon bucket is properly placed and open

valve(s) on ﬂow kit.

7 Allow to run until the ﬂow meter stabilizes and the ﬂow rate

can be recorded. In addition, record the residual pressure

of the ﬂow kit.

8 Compare results to designed values.

Andere Handbücher für PEX

Inhaltsverzeichnis

Andere ZURN Feuerlöschausrüstung Handbücher

ZURN

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