Features

• Extremely Compact Design • 70% Lighter than Traditional Designs • 304 (Schedule 40) Stainless Steel Housing &

Sleeve •Groove Fittings Allow Integral Pipeline Adjustment • Patented Tri-Link Checks Provides Lowest

Pressure Loss • Unmatched Ease of Serviceability • Available with Grooved Butterfly Valve Shutoffs • Replaceable Check Disc Rubber

Materials

• Housing & Sleeve: 304 (Schedule 40) Stainless Steel

• Elastomers: EPDM, Silicone and Buna 'N' •Tri-Link Checks: Noryl®, Stainless Steel • Check Discs: Reversible Silicone or EPDM • Test Cocks: Bronze Body Nickel Plated • Pins & Fasteners: 300 Series Stainless Steel • Springs: Stainless Steel

Pressure -Temperature

Temperature Range: 33°F - 140°F Maximum Working Pressure: 175psi

Approvals

ASSE 1015, UL Listed 28S6, CSA B64.5, FM Approved, USC Approved.

A AMES FIRE & WATERWORKS™

Model M200 I M200N Double Check Valve Assemblies

2-1/2" to 10"

Models

OSY - UL/FM outside stem and yoke resilient seated gate valves

BFG - UL/FM grooved gear operated butterfly valves w/tamper switch

NRS - non-rising stem resilient seated gate valves

Configurations

• Horizontal • Vertical up • "N" pattern horizontal

Specifications

The Maxim M200/M200N Double Check Valve Assemblies are used to prevent backflow of pollutants, that are objection­able but not toxic, from entering the potable water supply system. The Maxim M200/M200N may be installed under continuous pressure service and may be subjected to back­pressure. For use in non-health hazard applications. The Double Check Valve Assemblies shall consist of two inde­pendent Tri-Link Check modules within a single housing, sleeve access port, four test cocks and two drip tight shutoff valves. The housing shall be constructed with groove end connections. Tri-Link Checks shall produce drip tight closure against the reverse flow of liquid.

Instal la ti on

The system should be flushed before the valve is installed. The Series M200/M200N must be installed in accordance with the direction of the flow arrow on the assembly and according to the local water authority. The assembly should be installed with adequate clearance to allow inspection, testing and servicing. 12" should be the minimum clearance above grade.

Horizontal Installation

Dimensions - Weights Model M200 & M200N

!

~------------------------A ·--------------------------------j !---------::::::::::::::::::::: : ~:::::::::::::::::: ________ ~_! ---- p ------

M200/M200N --···~·-.............. _

A C (OSY) C (NRS) D G H I

21h 31 163/a 931a 3V2 29\1\6 223/4 1513A6 3 31 1vl6 181/a 10\/i 31\1\6 30\/i 223/4 171/s 4 331V16 22% 123A6 4 33 303/4 18112 6 44 30Ya 16 5112 44314 38 233116 8 50 37314 1915/i6 61\1\6 54Ya 455/s 2T1/16 10 57112 453/4 231% 8% 66 50 32112

~---------------------·A------------------------M200BFG/M200NBFG

A c D G H I

2112 28 8 3112 297/a 221/a 1415/16 3 28112 85/rn 311 /16 303/4 223/4 157/16 4 36 311;,6 413/16 39 303/4 18 6 401vl6 10 6 477/16 38 2011 /16 8 48 123/16 613/16 56 455/a 241/a

Flow Curves *=Rated flow **=UL Tested

psi * ** 14.------------------~ 12 ~& N

10t----+-----1----+----+-~;'--+---......,___.__, v 8 I H 6 tr~~~:::::"'.~-;;:: ...... =::t==t:::-3~~ 4 ; 2 t--_ _,_ _ __, __ -+----+-+---+----+-___,

0 50 100 150 200 250 300 350 gpm

psi 12.----..,--....,..--..,...----,---r--,-,*---,.--r--*......,*

-a~" -+--+---~--+---1-----1~--·--t---10 +---+--+---+----l---+--+--;-+----+--+----.I~ H 8 V f, N 6 I.r ~~"- ::o..._-,. -f---t---+--+-+--+-~c,,-:'-~~~ 0- V

"' ' · ~-4 t11=t=t'~-"~~j;~t=:===ti-;:t:t----=t=t=tl 2 +---+-~-~~-~-~-~--+-~~

psi 12 10 8 6 4 2 0

0 100 200 300 400 500 gpm

* ** ~u .. I

I

I

t---+---+---+---+--->-----<--+-~-- N t---+---+-- -+-- --+- --t- ---1----c-r'\-+=·-V

I -- __. H I ~ ---

"\. '""-____ ... -; ·-

I I

0 100 200 300 400 500 600 700 800 gpm

American Backflow Specialties www.t1111erict111bttcl\flow.co111

"" J p M2000SY M200NRS M200NOSY M200NNR s

813;,6 93A6 125 115 133 122 93116 10112 145 131 158 144 915/16 113A6 219 219 242 242 13V16 15 390 368 430 408 151\1\6 173/i6 564 522 640 598 175/i6 20 781 721 951 890

------------------------------------------1·------1--

J :

i ' ----'-- l

_l ----- p ----

p M200BFG M200NBFG

813/16 9 56 64 93/16 9112 54 67

11 11 /16 11 119 142 143/16 15112 211 251 163/4 17112 345 421

-- Horizontal -- Vertical - - - - - N-Pattern psi 12 * ** 10 ;_6_H~==~===~==~===~==-~---~·t---+---t---11

I

8 t---+--+--+--+--+---+--~l+---+---+---11 N

6 -......,~ H 4 " v 2 1--+---t--+--+·-----•·+--+--+--0 +---+--+--+--+--+---+-~+---+--+-~

O 300 600 900 1200 1500 gpm

* **

t---+--+--+--+--+---+---,'.--+---+--+---..-..N - H

2 B3~3~~-~~-i~-§E~i3v O+---+--+--+--+--+--~+--+---+--+---"--'

O 500 1000 1500 2000 2500 gpm

~ * -12.-------.--------~~-~-~

10 .. ~u N H

8 : ,-.::;;..... v 6 1---.L-. -t-----it----+----t-~;-+-~/~

~ - ·-4 I ' -- -~

2t==:::t:'~:'.:::::=l~~=i::=--~- ~-:::t==:t:=i==i==jj i

o~-~-~+----+---+-~'~---+--........

0 500 1000 1500 2000 2500 3000 3500 gpm

(800) 66-BKFLO (619) 527-2525

Fax: (619) 527-2527

n Backflow Specialties 0) 66-BKFLO (619) 527-2525 Fax: (619) 527-2527

www.americanbackjlow.com

Features

• Extremely Compact Design • 70% Lighter than Traditional Designs • 304 (Schedule 40) Stainless Steel Housing &

Sleeve •Groove Fittings Allow Integral Pipeline Adjustment • Patented Tri-Link Checks Provides Lowest

Pressure Loss • Unmatched Ease of Serviceability • Available with Grooved Butterfly Valve Shutoffs • Replaceable Check Disc Rubber

Materials

• Housing & Sleeve: 304 (Schedule 40) Stainless Steel

• Elastomers: EPDM, Silicone and Buna 'N' •Tri-Link Checks: Noryl®, Stainless Steel • Check Discs: Reversible Silicone or EPDM • Test Cocks: Bronze Body Nickel Plated • Pins & Fasteners: 300 Series Stainless Steel • Springs: Stainless Steel

Pressure - Temperature

Temperature Range: 33°F - 140°F Maximum Working Pressure: 175psi

Approvals

ASSE 1048, UL Listed 28S6, CSA B64.5, FM Approved, USC Approved.

A AMES FIRE & WATERWORKS™

Model M300 I MJOON Double Check Detector Assemblies

2-1/2" to 10"

Models

OSY - UL/FM outside stem and yoke resilient seated gate valves

BFG - UL/FM grooved gear operated butterfly valves w/tamper switch

Configurations

• Horizontal • Vertical up • "N" pattern horizontal

Specifications

The Maxim M300/M300N Double Check Detector Assem­blies are used to prevent backflow of pollutants, that are objectionable but not toxic, from entering the potable water supply system. The Maxim M300/M300N may be installed under continuous pressure service and may be subjected to backpressure. For use in non-health hazard applications where it is necessary to monitor the unauthorized use of water. The DCDAs shall consist of two independent Tri-Link Check modules within a single housing, sleeve access port, four test cocks and two drip tight shutoff valves. The housing shall be constructed with groove end connections. The bypass assembly features a register meter, double check valve assembly, and the required test cocks.

Instal la ti on

The system should be flushed before the valve is installed. The Series M300/M300N must be installed in accordance with the direction of the flow arrow on the assembly and according to the local water authority. The assembly should be installed with adequate clearance to allow inspection, testing and servicing. 12" should be the minimum clearance above grade.

Horizontal Installation

Dimensions - Weights

M300/M300N

A C (OSY) D G H p

31 163/s 3112 1513/16 813/16 133/16

3 4 6 40 38 8 55 3?3/4 7112 591/s 455/s 283/s 10

M300BFG/M300NBFG

M300BFG M300NBFG

36 4011116 38 2011/16

48 56 455/s 241/s

Flow Curves Flow curves for this model are the same as the M200/M200N Model. See that product page for flow curves.

70 78 68 81

11 11/16 15 133 156 225 265 359 435

ITEM NO. PART DESCRIPTION

Repair Parts -M200 I M200N &

M300/M300N Models

American Back flow Specialties

www.a111ericanlmcl~flow.co111

(800) 66-BKFLO (619) 527-2525

Fax: (619) 527-2527

1

2

3 4

5

6

7

8

NS

NS

NS

NS

NS

NS

NS

NS

FIRST CHECK MODULE

SECOND CHECK MODULE

CHECK MODULE 0-RING

ELASTOMER SHUTOFF DISC

GROOVED CLEVIS PIN KIT (CONTAINS: "E" CLIP & CLEVIS PIN)

5 PER PACK

CLOSURE SLEEVE TEST-COCK WITH 0-RING

CLOSURE SLEEVE

SLEEVE 0-RING or GASKET (2 REO'D)

CHECK REPAIR KIT (CONTAINS: 0-RING, SHUTOFF DISC & "E" CLIP)

TEST COCK, .50 FPT X FPT WITH NIPPLE

TEST COCK, . 75 FPT X FPT WITH NIPPLE

"E" CLIP

GROOVE COUPLER

SLEEVE COUPLER ASSEMBLY

0-RING, #3 TEST COCK

STAINLESS STEEL CHECK RETAINER

21/2'' 7018111

7018113

7017861

7017855

7018126

7018152

7017880

7017896

7018123

7018394

N/A

7017870

7017994

N/A

7017897

7018408

M300 M300N

139 147 159 172 233 256 404 444 578 654 795 965

16. Closure Sleeve Test Cock with 0-ring

~-----7. Closure Sleeve

5. E-clip and Clevis Pin

2. Second Check Module

3" 4" 6" 8" 10"

7018111 7018114 7018117 7018399 7018399

7018113 7018116 7018119 7018400 7018400

7017861 7017910 7013301 7018352 7018352

7017855 7017903 7017928 7018348 7018348

7018126 7018127 7018127 7018412 7018412

7018152 7018153 7018153 7018153 7018153

7017880 7017882 7017884 7017886 7017886

7017896 7017921 7017944 7018339 7018339

7018123 7018124 7018125 7018414 7018414

7018394 7018394 N/A N/A N/A

N/A N/A 7018395 7018395 7018395

7017870 7017821 7017821 7017974 7017974

7017995 7017996 7017997 7018070 7018070

N/A N/A 7018122 7018413 7018413

7017897 7017897 7017897 7017897 7017897

7018408 7018409 7018410 7018411 7018411