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Fire Sprinkler Heads & Inspection FAQ

29 September 2025

ProPress Copper Fittings Explained: Pressure Ratings, UL/FM Certification, Specs & Savings

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Featured Products

1/4’’ THREE WAY GLOBE VALVE Brass (Lead Free) UL/FM - Valves
3 WAY GAUGE VALVE, UL, Bronze
Three Way Valve, UL Listed Manufacturer: Ningbo Huacheng Valve Company Ltd Material: Cast Brass Body Valve Type:  Bronze 3-way valve    Max Pressure: 300psi Connection: FNPT X FNPT X FNPT Size: 1/4"  UL Listed
$6.63
$6.63
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3/4" BLACK MALLEABLE IRON SERVICE TEE, UL/FM Listed
3/4" BLACK MALLEABLE IRON SERVICE TEE, UL/FM Listed
Manufacture: MECH American Standard: Class 150 Material: The chemical composition of the cupola malleable iron used to create this fitting meet the mechanical property requirements (ASTM A197/A197M) Standards: Used for water or gas supply as well as for sewage and wastewater applications (ASME B16.3),...
$3.34
$3.34
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45° BLACK MALLEABLE IRON ELBOW, UL/FM Listed - NASCO Supply LLC
45° BLACK MALLEABLE IRON ELBOW, UL/FM Listed
Manufacture: MECH American Standard: Class 150 Material: The chemical composition of the cupola malleable iron used to create this fitting meet the mechanical property requirements (ASTM A197/A197M) Standards: Used for water or gas supply as well as for sewage and wastewater applications (ASME B16.3),...
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45° BLACK MALLEABLE IRON EQUAL STREET ELBOW, UL/FM Listed - NASCO Supply LLC
45° BLACK MALLEABLE IRON EQUAL STREET ELBOW, UL/FM Listed
Manufacture: MECH American Standard: Class 150 Material: The chemical composition of the cupola malleable iron used to create this fitting meet the mechanical property requirements (ASTM A197/A197M) Standards: Used for water or gas supply as well as for sewage and wastewater applications (ASME B16.3),...
From $1.97
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Pipe Hangers, Supports & Bracing

Choosing the Right Pipe Hangers, Supports and Bracing

Learn how pipe hangers, supports, and seismic bracing keep fire sprinkler and mechanical systems safe, stable, and code-compliant. Discover installation tips, common mistakes to avoid, and why professionals trust Nasco...

On by Tony Bagladi 0 Comments

NASCO’s Guide to Fire Protection Valves

NASCO’s Guide to Fire Protection Valves

High-Performance Fire Protection: A Guide to Our Most Advanced Valves (And Why They're Worth It) When it comes to fire protection, there is no room for compromise. At NASCO Supply,...

On by Tony Bagladi 0 Comments

Sprinkler Heads Color Codes

Sprinkler Heads Color Codes

Fire sprinkler head colors aren’t just for looks—they indicate the temperature at which the sprinkler activates. This quick guide explains the color coding system for glass-bulb sprinkler heads, including temperature...

On by David Loes 0 Comments

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