Cla-val 55L-60 Manuel d'utilisateur télécharger pdf

Fire Protection System Service

The

Model 55L-60 is typically used in a

fire protection system to trim water

pressure, thus preventing pressure build-

up whenever line pressure exceeds the

setting of the spring.

The 55L-60 will relieve excess pressure to

atmosphere to prevent damage to the

distribution network.

NOTE: Model 55L-60 is not suitable for

discharging the full-rated pump capacity of

a fire pump. See Model 50B-4KG1 Fire

Pump Relief Valve for such applications.

Typical Application for Fresh Water or Seawater Service

Pressure Relief Valve/

Pump Casing Relief Valve

55L-60

• UL Listed

• Factory Mutual Approved

• UL Listed/FM Approved for use as a fire pump casing

relief valve

• Direct Acting - Precise Pressure Control

• Positive Dependable Opening

• Drip Tight Closure

• No Packing Glands or Stuffing Boxes

• Sensitive to Small Pressure Variations

The Cla-Val Model 55L-60 (UL Listed, FM approved) Pressure Relief Valve

is a direct-acting, spring loaded, diaphragm type relief valve. The valve may

be installed in any position and will open and close within very close pressure

limits. The bottom plug may be removed and installed in the inlet to convert it

to an angle pattern flow path.

The Model 55L-60 is normally held closed by the force of the compression

spring above the diaphragm. When the controlling pressure applied under the

diaphragm exceeds the spring setting, the disc is lifted off its seat, permitting

flow through the control. When control pressure drops below the spring

setting, the spring forces the control back to its normally closed position. The

controlling pressure is applied to the chamber beneath the diaphragm

through an internal passage. A gauge port is provided for accurate pressure

setting.

Pressure adjustment is done by turning the adjusting screw to vary the spring

load on the diaphragm. The 55L-60 is available in pressure ranges suited to

agency approval tests. To prevent tampering, the adjustment cap can be wire

sealed by using the lock wire holes provided in the cap and cover.

Available in a wide range of materials including

nickel aluminum bronze and stainless steel.

Certified to meet low lead requirements

MODEL

Fire Pump Casing

Relief Valve

1 2

Résumé du contenu

Page 1 - Pump Casing Relief Valve

Fire Protection System ServiceThe Model 55L-60 is typically used in afire protection system to trim waterpressure, thus preventing pressure build-up w

Page 2 - Specifications

Size 1/2" & 3/4" Threaded NPTTemperature Range Water, Air: to 180°F Max.MaterialsBody & Cover: Cast Bronze UNS C87850Stainless Stee

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Cla-val 55L-60 Manuel d'utilisateur

Naviguer en ligne ou télécharger Manuel d'utilisateur pour Équipement Cla-val 55L-60. Cla-Val 55L-60 User Manual Manuel d'utilisatio

Résumé du contenu

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