Task Force Tips Pressure Relief Valve Guía rápida

Manual:

Pressure Relief Valve

LIA-202 October 4, 2004 Rev 0©Copyright Task Force Tips, Inc. 2004

TASK FORCE TIPS, INC. 2800 East Evans Avenue, Valparaiso, IN 46383-6940

800-348-2686 • 219-462-6161 • Fax 219-464-7155

www.tft.com

TASK FORCE TIPSTASK FORCE TIPS

This instruction manual is intended to familiarize firefighters and maintenance personnel with the operation, servicing and

safety procedures associated with the Pressure Relief Valve.

This manual should be kept available to all operating and maintenance personnel.

WARNING Read instruction manual before use. Operation of this device without understanding the manual and

receiving proper training is a misuse of this equipment. A person who has not read and understood all

operating and safety instructions is not qualified to operate the Pressure Relief Valve.

INSTRUCTIONS FOR SAFE OPERATION AND MAINTENANCE

1.0 MEANING OF SAFETY WORDS

A safety related message is identified by a safety alert symbol and a signal word to indicate the level of risk involved with a particular

hazard. Per ANSI standard Z535.4-1998 the definitions of the three signal words are as follows:

DANGER indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury.

WARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

CAUTION indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.

WARNING

CAUTION

DANGER

2.0 GENERAL INFORMATION

The Pressure Relief Valve may be set to any pressure between 50 and 200 p.s.i.. Its function is to protect the pump and the supply hose

from excess pressure. The relief valve may be mounted with its opening facing the front, back, right or left. A section of tubing or pipe

may be mounted on the round spout to route the water in any direction. To install the Pressure Relief Valve;

1) Install the O-ring in the groove on the Pressure Relief Valve.

2) Install four 7/16" bolts through the Pressure Relief Valve flange. Use a drop of thread locking compound on the threads of the bolts to

prevent them from coming loose.

3.0 RELIEF VALVE SETTINGPRESSURE

To set the relief valve pressure turn the adjusting screw on the relief valve housing until the surface of the screw is

Do not cap or plug discharge opening.

even with the

desired pressure.

Adjusting

Screw

50 PSI 125 PSI

200 PSI

©Copyright Task Force Tips, Inc. 2004

TASK FORCE TIPS, INC. 2800 East Evans Avenue, Valparaiso, IN 46383-6940

800-348-2686 • 219-462-6161 • Fax 219-464-7155

www.tft.com

4.0 RELIEF VALVE FLOW vs. PRESSURE CURVE

PRESSURE RELIEF VALVE PERFORMANCE

100

125

150

175

200

225

250

275

300

0 25 50 75 100 125 150 175 200

FLOW (GPM)

PRESSURE (PSI)

0 100 200 300 400 500 600 700

FLOW (LPM)

125 PSI SETTING

200 PSI SETTING

50 PSI SETTING

PRESSURE (BAR)

5.0 DRAWING AND PARTS LIST

Index Description QTY Part #

1 1/2-13 X 1.0 BUTTON HEAD CAP SCREW 1 VT50-13BH1.0

2 O-RING-236 3-1/4 ID 1/8 C/S 1 VO-236

3 DEBRIS WASHER 1 A1169

4 HOUSING W/OUT THDS 1 A1150***

5 5/16-18 X 3/8 SOCKET SET SCREW CUP POINT 1 VT31-18SS375

6 VALVE SEAT 1 A1168

7 PISTON -HARDCOAT 1 A1160

8 O-RING-231 2-5/8 ID 1/8 C/S 1 VO-231

9 QUAD RING 422 1.5 ID X 1/8 C/S 2 VOQ-4222

11 SPRING SEAT 1 A1166

12 RELIEF SPRING 1 A1170

13 SMALLEY RING 1 V4210

14 ADJUSTING SCREW 1 A1167

15 SPRING HOUSING 1 A1164

Pressure Relief Valve 50 - 200 psi

A1150

A1150PH

A1151

A1151PH

Housing with Waterous / Hale hole pattern. (TFT Standard)

Plain discharge.

Housing with Waterous / Hale hole pattern.

2" NPT male discharge.

Housing with Darley hole pattern.

Plain discharge.

Housing with Darley hole pattern.

2" NPT male discharge.

***Index 4 Housing Choices

LIA-202 October 4, 2004 Rev 0

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