55L-60 Pump Casing Relief Valve UL Listed & FM Approved

55L-60 Pump Casing Relief Valve UL Listed & FM Approved

55L-60 Pressure Relief Valve – Pump Casing Relief Valve

The Model 55L-60 Pressure Relief Valve is designed for fire pump casing pressure relief applications. It helps manage excess pressure in compatible fire pump systems through adjustable pressure settings, supporting safe and reliable system operation.

The 55L-60 Pump Casing Relief Valve is available in multiple threaded NPT connection sizes, pressure adjustment ranges, and material options to meet different fire protection engineering requirements.

Key Features

  • Designed for fire pump casing pressure relief
  • Maximum working pressure: 300 PSI (20.7 bar)
  • Multiple adjustable pressure ranges
  • Threaded NPT connections
  • Multiple material construction options
  • FM Approved and UL Listed

Technical Specifications

Specification

Details

Model

55L-60

Product Type

Pressure Relief Valve

Application

Pump Casing Relief

Connection Sizes

1/2", 3/4", and 1"

Connection Type

Threaded NPT

Maximum Working Pressure

20.7 bar (300 PSI)

Temperature Range

Water, Air: Up to 82°C (180°F)

FM Adjustment Ranges

0–75, 20–200, 20–300 & 100–300 PSI

UL Adjustment Ranges

10–75, 20–200, 20–300 & 100–300 PSI

Approvals

FM Approved, UL Listed

Available Materials

  1. Cast Bronze – UNS C87850
  2. Standard Stainless Steel – ASTM A743-CF-16F
  3. Monel
  4. Super Duplex Stainless Steel

Pressure Adjustment Ranges

FM Approved:

  • 0–75 PSI
  • 20–200 PSI
  • 20–300 PSI
  • 100–300 PSI

UL Listed:

  • 10–75 PSI
  • 20–200 PSI
  • 20–300 PSI
  • 100–300 PSI

Applications

  • Fire pump installations
  • Fire pump casing pressure relief
  • Fire protection pump rooms
  • Commercial fire protection systems
  • Industrial firefighting installations

Why Choose Pacific Tech & Engineering Ltd.?

Pacific Tech & Engineering Ltd. provides fire protection products and engineering solutions in Bangladesh. We support commercial, industrial, and institutional projects with fire pump accessories, valves, and firefighting system components.

Contact our team for 55L-60 pressure relief valve availability, technical specifications and project quotations.

 

The 55L-60 Pressure Relief Valve, also known as a Pump Casing Relief Valve, is designed for pressure relief applications in fire pump systems. It features threaded NPT connections, multiple adjustable pressure ranges, and a maximum working pressure of 300 PSI (20.7 bar). Available in bronze, stainless steel, Monel, and super duplex stainless steel materials. FM Approved and UL Listed.

Application details will be updated soon.

Product features will be updated soon.

Datasheet
Product Datasheet & Technical Document
1120-a-en-ds-55l-60-pressure-relief-valve-fm-ul.pdf
Certificate
Official Quality & Compliance Certificate
55l-60-pressure-relief-pump-casing-relief-valve-ul-certificate.pdf
Catalogue
Product Catalogue & Brochure
1120-a-en-iom-55l-60-pressure-relief-valve-ul-fm.pdf

Other Products of Valves & Accessories



Fire Hose Reels (Kitemark LPCB Approved)

Fire Hose Reels (Kitemark LPCB Approved)

NAFFCO 65mm Hose Pipe & Nozzle UL Listed

NAFFCO 65mm Hose Pipe & Nozzle UL Listed

SHIELD Y Strainer – SD-YS300FF-D / SD-YS300GG-D

SHIELD Y Strainer – SD-YS300FF-D / SD-YS300GG-D

Cla-Val Pressure Reducing Valve – 90G-21 Globe & 90A-21 Angle

Cla-Val Pressure Reducing Valve – 90G-21 Globe & 90A-21 Angle

Y-STRAINER

Y-STRAINER

OS & Y GATE VALVE

OS & Y GATE VALVE

Check Valve (NRV)

Check Valve (NRV)

Butterfly Valve

Butterfly Valve

Flexible Rubber Expansion Joint

Flexible Rubber Expansion Joint

Waste Cone

Waste Cone

Pressure Relief Valve

Pressure Relief Valve

Flow Meter

Flow Meter

Tamper Supervisory Switch

Tamper Supervisory Switch

Water Flow Switch

Water Flow Switch

Pressure Gauge

Pressure Gauge

Auto Air Vent

Auto Air Vent

Ball Valve

Ball Valve

Landing Valve

Landing Valve

Hose Pipe Assembly

Hose Pipe Assembly

Fire Hose Cabinet

Fire Hose Cabinet

2 WAY BREACHING INLET (FIRE BRIGADE CONNECTION)

2 WAY BREACHING INLET (FIRE BRIGADE CONNECTION)

4 WAY BREACHING INLET

4 WAY BREACHING INLET

PILLAR HYDRANT (WET TYPE)

PILLAR HYDRANT (WET TYPE)

HOSE PIPE ASSEMBLY (65MM)

HOSE PIPE ASSEMBLY (65MM)

SELF STANDING HOSE CABINET

SELF STANDING HOSE CABINET

PRESSURE SWITCH

PRESSURE SWITCH

AUTO AIR VENT Second

AUTO AIR VENT Second

Pressure Reducing Valve

Pressure Reducing Valve

Casing Relief Valve

Casing Relief Valve