Apollo Conbraco 36H User Manual

36H Series

Model PRH - High Capacity Pressure Reducing Valve

DESCRIPTION

The Apollo® PRH (36H Series) Pressure Reducing Valves are designed for commercial, industrial,
and institutional applications to reduce incoming water pressure for protection of plumbing
system components and to reduce water consumption. The valves are made with proven
ASTM grade bronze and stainless steel materials. The PRH provides high capacity ow with low
pressure drop. It is designed with an integral by-pass relief to protect against thermal expansion
downstream. The bottom access enables easy in-line cleaning or seat replacement.

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FEATURES

• Sealed Spring Cage for Vault Installation

• Ultra-high Flow Capacity

• Internal Thermal Expansion By-pass

• Local Code Approvals

• Standard Factory Setting: 50 psi

• Three spring ranges cover 10 – 125 psi

• Stainless Steel Bolts and Spring

• 150 lb ANSI B16.24 Flange Connection
Option

• In-line strainer option

• 100% MADE IN THE USA

PERFORMANCE RATING

•

Maximum Operating Pressure: up to 400 psig

• Temperature Range: 33 °F – 180 °F

APPROVALS

• ASSE 1003

• CSA B356

Not intended for potable water

PART NUMBER

36H - X X X - 0X

END CONNECTIONS

2 - FNPT x FNPT (Standard) 0 - Standard 3 - 1/2”
7 - Flanged (2-1/2” - 3” only) 1 - With Y-Strainer 4 - 3/4” 02 - 10-35 psig

OPTIONS SIZE PRESSURE RANGE

01 - 25-75 psig (Standard)

5 - 1” 03 - 75-125 psig
6 - 1-1/4”
7 - 1-1/2”
8 - 2”
9 - 2-1/2”
0 - 3”

MODEL NUMBER

PRH - X X X X

END CONNECTIONS

T - Threaded Y - with
F - ANSI 150# Flanges Y-Strainer H - 75-125 psig (set at 100) 34 - 3/4”
(2-1/2” - 3” only) L - 10-35 psig (set at 25) 1 - 1”

ACCESSORIES

PRESSURE ADJ. RANGE SIZE

Standard

- 25-75 psig (set at 50) 12 - 1/2”

114 - 1-1/4”
112 - 1-1/2”
2 - 2”
212 - 2-1/2”
3 - 3”

STANDARD MATERIALS LIST

Part Name Material

Body Bronze, ASTM B584
Bonnet/Cap Bronze, ASTM B584
Diaphragm FDA approved Buna-N W/ Nylon
Seat disc FDA approved EPDM
Yok e Bronze, ASTM B-16
Springs Stainless Steel
O-Rings FDA approved Nitrile

Apollo Valves, Manufactured by Conbraco Industries, Inc.

701 Matthews Mint-Hill Road, Matthews, NC 28105 USA

www.apollovalves.com | [phone]

This specication is provided for reference only. Conbraco Industries Inc. reserves the right to change any portion of this specication without notice and without incurring
obligation to make such changes to Conbraco products previously or subsequently sold. Please visit our website @ www.apollovalves.com for the most current information.

SS1087 © 10/14 Page 1 of 2

36H Series

Model PRH - High Capacity Pressure Reducing Valve

DIMENSIONS

Model

Number

Part

Number

Size
(in.)

A B C D E F

Dimensions (in.)

PRH 36H-203 1/2 4.12 2.25 9.25 1.87 8.37 4.00 7.00 6.0
PRH 36H-204 3/4 4.12 2.25 9.25 2.44 9.00 4.00 8.00 6.0
PRH 36H-205 1 4.82 2.31 9.81 4.00 10.25 4.70 12.00 8.0
PRH 36H-206 1 1/4 6.19 3.19 13.20 3.37 12.50 6.50 29.00 24.0
PRH 36H-207 1 1/2 6.75 3.19 13.20 3.87 13.13 6.50 29.00 23.0
PRH 36H-208 2 8.12 3.50 16.00 4.63 16.00 7.63 47.00 38.0
PRH 36H-209 2 1/2 8.12 3.50 16.00 6.00 17.70 7.63 49.00 37.0
PRH 36H-200 3 10.37 4.00 19.12 7.00 20.50 9.75 87.00 70.0

Flanged

PRH 36H-709 2 1/2 10.37 3.50 16.00 7.12 21.70 7.63 105.00 55.0
PRH 36H-700 3 12.50 4.00 19.12 8.12 24.50 9.75 132.00 104.0

* Nominal dimensions are shown. Allowances must be made for manufacturers’ tolerances.

FLOW CAPACITY (GPM)

Pipe Size

Fall-O*

(PSI)

5 8.5 10 11.5

1/2”

10 13.6 16 18.4 10 61.5 72.3 83.1
15 17.9 21 24.2 15 90.1 106.0 121.9
20 21.3 25 28.8 20 113.1 133.0 153.0

5 10.6 12.5 14.4

3/4”

10 20.4 24.0 27.6 10 126.7 149.0 171.4
15 28.1 33.0 38.0 15 174.3 205.0 235.8
20 34.0 40.0 46.0 20 231.2 272.0 312.8

5 17.0 20.0 23.0

1”

10 29.8 35.0 40.3 10 132.6 156.0 179.4
15 40.8 48.0 55.2 15 200.6 236.0 271.4
20 51.0 60.0 69.0

5 21.3 25.0 28.8

1-1/4”

10 51.9 61.0 70.2 10 176.0 207.0 238.1
15 80.8 95.0 109.3 15 282.5 332.4 382.3
20 106.3 125.0 143.8 20 365.5 430.0 494.5

* Fall O is the dierence between the PRV’s set pressure and the owing pressure at any given demand.

Pressure Dierential (PSI)

25 50 75

Pipe Size

1-1/2”

2”

2-1/2”

3”

Fall-O *

(PSI)

Wt.

(lbs.)

w/strainer

Wt.

(lbs.)

wo/strainer

D

Pressure Dierential (PSI)

25 50 75

5 29.8 35.0 40.3

5 55.3 65.0 74.8

5 58.7 69.0 79.4

20 271.2 319.0 366.9

5 80.8 95.0 109.3

F

TOP VIEW

C

USA

USA9USA

B

E

A

PRH SERIES PRV FLOW RATE VS. PRESSURE FALL-OFF

Note: Flow curves are based on static conditions of
100 psi inlet pressure and 50 psi outlet pressure.
Pressure Fall-o is the decrease in downstream
regulated pressure when the ow increases.

Apollo Valves, Manufactured by Conbraco Industries, Inc.

701 Matthews Mint-Hill Road, Matthews, NC 28105 USA

This specication is provided for reference only. Conbraco Industries Inc. reserves the right to change any portion of this specication without notice and without incurring
obligation to make such changes to Conbraco products previously or subsequently sold. Please visit our website @ www.apollovalves.com for the most current information.

SS1087 © 10/14 Page 2 of 2

www.apollovalves.com | [phone]