Watts Ames deringer 40g User manual

Installation, Operation and

Maintenance Manual

IOM-A-Deringer 40G/40GX/50G/50GX_6-8

Deringer™40G/40GX/50G/50GX

Reduced Pressure Zone/

Reduced Pressure Detector Assemblies

Size: 40G/50G: 6" & 8"

40GX/50GX: 4" & 6”

WARNING

Read this manual BEFORE using this equipment.

Failure to read and follow all safety and use information can

result in death, serious personal injury, property damage, or

damage to the equipment.

Keep this manual for future reference.

You are required to consult the local building and plumbing

codes prior to installation. If the information in this manual

is not consistent with local building or plumbing codes,

the local codes should be followed. Inquire with governing

authorities for additional local requirements.

WARNING

This list is the recommended tools for installation. Other

versions of the same tool can be used. For example, allen

wrenches instead of allen drive sockets.

Tools Required

Ratchet

15/16" Socket

11/8" Socket

Wood Block 2" x 4" x 5"

Wood Block 1" x 2" x 16"

#2 Phillips Head Screwdriver #2 Flathead Screwdriver 5/8" Ratchet Wrench

7/16" Ratchet Wrench (x2)

9/16" Ratchet Wrench

Adjustable Wrench Deringer Test Cock Wrench Slip-joint Pliers

Toothbrush

Closing Shutoff Valves Prior to Maintenance

1. Slowly rotate shutoff valve #2 handle to the closed

position. Stem concealed (A).

2. Slowly rotate shutoff valve #1 handle to the closed

position. Stem concealed (A).

NOTICE

When the threaded portion of the OS&Y stems are fully exposed above the

handwheel the shutoff valves are in the open position. Before doing any

maintenance be sure to turn the handwheel towards the closed position until

the threaded portion of the OS&Y stems have receded down into the bonnet

indicating the shutoff valves are in the closed position (A).

FLOW

ClosedOpen

Opening Test Cocks and Bleeding All Pressure

from the Line Before Maintenance

NOTE: valve is still under pressure. When opening test cocks,

water will be released. Take precautions to ensure discharging

water does not damage the surrounding area/equipment or

create an unsafe condition.

1. DO NOT OPEN Main test cock number 1, as it is still

subject to line pressure.

2. Using the DeringerTM test cock wrench or a small adjust-

able wrench open (A) main test cock number 4. (Test cock

is open when wrench flats are parallel to water flow through

test cock)

3. Deringer 50G/50GX Only: Using a #2 flathead screwdriver

open bypass test cock number 2. (Test cock is open when

screwdriver slot is parallel to water flow through test cock (B)

4. Using the Deringer test cock wrench or a small adjustable

wrench open main test cock number 3.

5. Deringer 50G/50GX Only: Using a #2 flathead screwdriver

open bypass test cock number 1.

6. Using the Deringer test cock

wrench or a small adjustable

wrench open main test

cock number 2.

FLOW

Bypass Test CockMain Test Cock

Closed Open Closed Open

Removing Access Port Cover Plate

Removing the First Dual-actionTM Check Module

FLOW

Removing the Second Dual-action Check Module

1. Using a 15/16" socket wrench loosen all eight

bolts on the access port cover plate (A).

2 Remove bolts and tapered washers and

store in a safe place. If lost, tapered bolts

must be replaced with like Deringer cover

bolts and cannot be substituted with

standard bolts.

3. Remove access port cover plate (B). Do

not remove access port O-ring (C).

1. Use a 15/16" socket wrench to loosen the check retainer

bolts on both sides of the valve body (A). Do not com-

pletely remove check retainer bolts from valve body.

Loosen the bolts until the ends of the bolts are flush

with the inner wall of the valve body (B). Allow easy

removal of check modules

2 Insert a flathead screwdriver between the inner valve

body and the first check module flange (C), gently push

the first check module in the downstream direction until

the first check module can easily be removed from the

access port by hand.

1. Use a 11/8" socket wrench to loosen the check

retainer bolts on each side of the valve body (A). Do

not completely remove check retainer bolts from valve

body. Loosen the bolts until the ends of the bolts are

flush with the inner wall of the valve body (B).

2. Insert a flathead screwdriver between the inner valve

body and the second check module flange (C), gently

push the second check module in the upstream

direction until the second check module can easily

be removed from the access port by hand.

FLOW

Deringer 50G/50GX: Disassembly and

Maintenance of Bypass Check Valve

Part 1

1. Use an adjustable wrench to rotate check cover (A)

counterclockwise to remove.

2. Examine cover plate O-ring (B) for damage or fouling.

3. Remove spring (C).

4. Remove check poppet assembly (D) and examine for damage

or fouling.

5. Examine seat cage, located inside the check body, for damage or

fouling to the sealing seat. Do not remove unless the seat cage is

being replaced.

6. Reverse the order of above instructions to reassemble bypass

check valve.

Part 2

1. To replace a damaged red silicone poppet disk, use a #2 phillips

head screwdriver to remove the disk retaining screw (A).

2. Remove disk retaining washer (B).

3. Use a flathead screwdriver to remove the gasket from

poppet cavity (C).

4. Install new red silicone poppet disk (D).

5. Reverse the order of the above instructions to reassemble

check poppet assembly.

6. Reverse the order of the instructions on the previous page to

reassemble bypass check assembly.

Removing Bypass Meter

1. Using the ball valve handles close the #2 bypass ball valve

(B) and then #1 bypass ball valve (A). (Ball valve is closed

when “T” handle is perpendicular to water flow through

ball valve).

2. Using a #2 flathead screwdriver open bypass test cock #2

(D) and then open bypass test cock #1 (C). (Test cock is

open when screwdriver slot is parallel to water flow through

test cock).

3. Using a large adjustable pliers or wrench unscrew and

retract bypass meter coupling nuts (E). Remove the gaskets

(F) on both sides of bypass meter.

4. Gently remove bypass meter (G) from line. It is OK if the

bypass fittings move slightly during the removal process.

5. Reverse order of above instructions to reinstall bypass

meter. Remember install gaskets (F) before threading meter

coupling nuts into place.

FLOW

Maintenance of First True Seal Check Module

1. Use a #2 phillips head screwdriver to remove tower screws

(A) from the first check seat (B) the double torsion spring

is captured (C) and does not need to be retained

during maintenance.

2. After removing the tower screws (A) examine the elastomer

disk (D) and check seat (E) for fouling or damage.

3. Should elastomer disk (D) need replacement unscrew disk

retainer screws (F) and remove disk retainer (G). Carefully remove

and replace elastomer disk (D). When replacing elastomer disk

(D) be certain that no air, water or debris is trapped in the

clapper (H) cavity behind the elastomer disk (D).

4. Reverse the order of the above instructions to reassemble

check.

• Elastomer disk must be flat in clapper (H) cavity before

tightening disk retainer screws (F).

• Do not cross thread disk retaining screws (F).

• Check orientation is not important when reattaching the

check to the first check seat.

Maintenance of Second Dual-action Check Module

1. Use a #2 phillips head screwdriver to remove tower screws

(A) from the second check seat (B) the double torsion

spring is captured (C) and does not to be retained

during maintenance.

2. After removing the tower screws (A) examine the elastomer

disk (D) and check seat (E) for fouling or damage.

3. Should elastomer disk (D) need replacement unscrew disk

retainer screws (F) and remove disk retainer (G). Carefully

remove and replace elastomer disk (D). When replacing

elastomer disk (D) be certain that no air, water or debris is

trapped in the clapper (H) cavity behind the elastomer disk (D).

4. Reverse the order of the above instructions to reassemble check.

• Elastomer disk must be flat in clapper (H) cavity before

tightening disk retainer screws (F).

• Do not cross thread disk retaining screws (F).

NOTICE Second Check Tower Bosses and Spring Arms Face Down

Orient seat protrusions as shown

Tower Bosses

Spring Arms

The diagram on the right shows the correct orientation of the

second dual-action check module when being re-attached to

the seat. In order to maintain the performance of the valve pay

attention to the proper orientation of the check module.

Installing Second Dual-action Check Module

1. Insert second check module (A) into access port (B) with second

check towers (C) pointing downstream. Push second check module

(A) downstream into valve sealing ring (D) until check O-ring (E) rests

against valve sealing ring (D). Push second check module (A) into its

fully seated position by hand.

2. Alternatively place 2"x4" piece of wood cut to 5" length (F) against

the backside of the second check seat ring (G). Using a 1"x4" piece

of wood cut to 16" length (H) as a lever between access port wall the

2"x4" (F) gently move the second check module (A) into its fully

seated position.

3. Be certain second check module (A) is fully seated and check O-ring

(E) is NOT “fish mouthed” or damaged.

4. Tighten the second check retaining screws (I) ONLY AFTER the first

check module (A) as been installed.

The second check module must be fully seated to ensure

retainer screws do not bind against check seat. Binding

retainer screws against check seat will result in permanent

damage to second check modules.

WARNING

FLOW

Not BindingBinding

Installing First Dual-action Check Module

1. Insert first check module (A) into access port (B) with first check

towers (C) pointing downstream. Push first check module (A)

upstream into valve sealing ring (D) until check O-ring (E) is

resting against valve sealing ring (D). Push first check module

(A) into its fully seated position by hand.

2. Alternatively, using a piece of 1"x4" wood cut to 16" length

(F) as a lever between the second check seat (F) and the first

check towers (C), push the first check module (A) into its fully

seated position.

3. Be certain first check module (A) is fully seated and check

O-ring (E) is NOT “fish mouthed” or damaged.

4. Now fully tighten the first and second check retaining screws (I).

The ﬁrst check module must be fully seated to ensure

retainer screws do not bind against check towers. Binding

retainer screws against check towers will result in permanent

damage to ﬁrst check modules.

WARNING

FLOW

Not BindingBinding

NOTICE

Typically, when a RP device is leaking from the relief valve, a fouled

or damaged first check valve is the cause. Make sure the first check

valve is functioning properly before assuming there is a problem with

the relief valve. If the first check is found to be functioning properly,

we recommend cleaning the relief valve piston (B) and seat (C). Use

a toothbrush (A) to gently brush away any debris on the relief valve

piston (B) or seat (C) that may be preventing the piston (B) from seal-

ing properly against the seat (C). This should return the relief valve to

proper working order without disassembly or the use of a repair kit.

Maintenance of Relief Valve

1. Using a 5/8" box wrench disconnect the relief valve sensing

line from the valve body (A).

2. To remove the relief valve from the valve body disconnect

the two relief valve mounting bolts (B) using a 9/16" wrench.

When removing the relief valve be sure not to drop the top

O-ring (C) as the relief valve body uses this O-ring to seal

against the valve body.

3. To access the relief valve remove the relief valve cover using

two 7/16" wrenches to remove cover bolts (D).

4. Remove the relief valve diaphragm (E) and check the

diaphragm for tears, holes or debris (F).

NOTICE

If one is certain that the relief valve requires maintenance proceed as follows.

Maintenance of Relief Valve (continued)

1. Check the rubber seal on the relief valve piston assembly (A) for

fouling or damage by making sure the indentation of the seat in

the rubber seal is present all the way around. (Confirm the relief

valve piston assembly (A) sets flush on relief valve seat (B).

2. Check relief valve seat (B) for fouling or damage before

reinstalling the relief valve piston assembly (A).

3. Once the relief valve is ready to be reassembled, the first step is

to reform and reattach the diaphragm to the piston.

4. Move the diagram (C) to the fully open position making sure the

embossed center is facing up.

5. While holding the diaphragm (C) with both hands, use your

thumbs to gently push down on embossed center (D) so the

diaphragm collapses into itself and forms a circle so that the

bottom of the piston assembly can be inserted into the

diaphragm and the embossed center can be pushed into

the piston assembly groove.

1. Place the piston assembly (A) into the diaphragm (B), making sure the

diaphragm lays flush on the bottom of the piston assembly with no

wrinkles or tears in the diaphragm.

2. Place the relief valve spring (C) back onto the relief valve assembly (A)

and slide the valve assembly back into the relief valve body (D). Make

sure the piston assembly lines up to penetrate hole (E) in top side of

relief valve.

Maintenance of Relief Valve (continued)

1. Using two 7/16" wrenches (A) re-attach the relief valve cover.

2. Making sure the relief valve O-ring (B) is in the groove on the top

of the relief valve use a 9/16" wrench to re-attach the two relief

valve mounting bolts (C).

3. Use a 5/8" box wrench re-connect the relief valve sensing line to

the valve (D).

Pitot Tube Orientation

1. Before reinstalling the relief valve after maintenance, check to make sure

the pitot tube (A) is in the proper orientation. If the pitot tube is NOT in

the proper orientation the relief valve WILL LEAK OR DUMP during

flow conditions.

2. The inlet port of the pitot tube (B) at the top of the pitot tube must face

directly UPSTREAM toward the #1 shutoff valve. Proper orientation can

be confirmed visually by removing the main line valve cover and first

check valve (see right).

3. Note that the inlet port of the pitot tube (B) is not visible because it is

facing directly upstream toward the #1 shutoff valve.

4. A dimple (C) has been provided on the hex wrench portion of the pitot

tube in order to visually confirm the proper orientation of the pitot tube

from the OUTSIDE of the valve (see right). Note that the dimple (C) is on

the same side of the pitot tube as the inlet port of the pitot tube (B)

(see right).

5. From the OUTSIDE of the valve the dimple (C) must face directly

UPSTREAM toward the #1 shutoff valve. If the dimple (C) of the pitot

tube is NOT in the oriented UPSTREAM the relief valve WILL LEAK OR

DUMP during flow conditions

FLOW

Upstream

Installing Access Port Cover

1. It is best to never remove the access port O-ring (A). Should the

access port O-ring (A) become dislodged, simply insert it back into

access port groove (B).

2. Slide the access port cover (C) into place being certain that access

port O-ring (A) does not become dislodged during the process.

3. Insert cover bolts (D) and tapered washers (E) into tapered cover holes

(F). Tapered washers (E) must be properly installed with flat side facing

up or the access port cover (C) will not seal under pressure.

4. Use 15/16" socket wrench (G) to tighten the 4 center cover bolts (D)

alternating from one side of the valve to the other. Then tighten the four

corner bolts alternating from one side of the valve to the other. B

Close Test Cocks and Double Check All Closing/Sealing Mechanisms

1. Using the Deringer test cock wrench or a small adjustable

wrench close main test cocks number 1, 2 and 3 (A). (Test

cock is closed when wrench flats on stem are perpendicular

to water flow through test cock)

2. Deringer 50G/50GX: Using a #2 flathead screwdriver close

bypass test cock number 1 and 2 (B). (Test cock is closed

when screwdriver slot on stem is perpendicular to water flow

through test cock)

3. Use the “T” handles to open bypass ball valve number 1 (C)

and then open bypass ball Valve number 2 (D). (Ball valve is

open when “T” handle is parallel to water flow through

ball valve)

4. Double check to be certain of the following:

• All cover bolts are tightened (E)

• Deringer 50G/50GX: Bypass check valve cover is

tightened (F)

• Deringer 50G/50GX: Bypass meter coupling nuts are

tightened (G) FLOW

A A

BBE

Closed

Open

Limited Warranty: Ames Fire & Waterworks (the “Company”) warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date

of original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge.

THE WARRANTY SET FORTH HEREIN IS GIVEN EXPRESSLY AND IS THE ONLY WARRANTY GIVEN BY THE COMPANY WITH RESPECT TO THE PRODUCT. THE COMPANY MAKES NO OTHER

WARRANTIES, EXPRESS OR IMPLIED. THE COMPANY HEREBY SPECIFICALLY DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE

IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

The remedy described in the first paragraph of this warranty shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special

or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting from

labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse water conditions, chemical, or any other circumstances over which the Company has no control.

This warranty shall be invalidated by any abuse, misuse, misapplication, improper installation or improper maintenance or alteration of the product.

Some States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the

above limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to

determine your rights. SO FAR AS IS CONSISTENT WITH APPLICABLE STATE LAW, ANY IMPLIED WARRANTIES THAT MAY NOT BE DISCLAIMED, INCLUDING THE IMPLIED WARRANTIES