4-2520-263R-503

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Viking Pump
4924A Series Refrigeration Ammonia Internal Gear Pumps
4-2520-263R-503

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4-2520-263R-503

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Viking Pumps 4-2520-263R-503 4924A Series Liquid-Specific Product Line Internal Gear Ammonia/Refrigerant Pump, KK4924A SD CGCG 006 RV 2"THTRz, Cast Iron, Standard Fitted. 2" NPT 90° Ports. Cast Iron Casing, Head, Bracket, Idler & Rotor, Hardened Steel Idler Pin, Carbon Graphite Bracket & idler Bushings, High Strength Steel Rotor Shaft, Buna O-Rings, Cast Iron Internal Relief Valve. Carbon / Ni-Resist / Neoprene Stuffing Box with Universal Seal Bearing Housing Double Mechanical Seal. 30 GPM Nominal Flow, 280 Max RPMs, 50 PSI Maximum Pressure, -40 to +225 °F (-40 to +105 °C).

$12,031.00

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Item: 4-2520-263R-503

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4-2520-263R-503

Base Model Number	KK4924A
Bracket Bushing	Carbon Graphite
Bracket Material	Cast Iron ASTM A48, Class 35B
Build	Standard Fitted
Casing Material	Cast Iron ASTM A48, Class 35B
Configuration	90° Ports
Connection Type	NPT
Elastomer	Buna
Fluid Port	2"
Head / Fittings	Cast Iron ASTM A48, Class 35B Head
Idler Bushing	Carbon Graphite
Idler Material	Cast Iron, ASTM A48, Class 35B
Idler Pin Material	Hardened Steel, ASTM A108 Grade 10L45
Material	Cast Iron
Maximum Operating Temperature	-40 to +225 °F (-40 to +105 °C)
Maximum Working Pressure (PSIG)	50 PSI
Model Series	4924A Series

Mounting Type	Foot mount
Nominal Flow	30 GPM
Pressure Rating BAR	3
Product Notes	Ammonia/Refrigerant
Quick Specs	KK4924A SD CGCG 006 RV 2"THTRz
Rotar Material	Cast Iron ASTM A48, Class 35B
Rotor Shaft Material	high strength steel ASTM A434 Type 4140 Grade BC or equivalent
Seal Code	4
Seal Location	Stuffing Box with Universal Seal Bearing Housing
Shaft Seal Material	Carbon vs. Ni-Resist Neoprene Elastomers
Shaft Seal Type	Double Mechanical Seal
Size	KK
Speed (RPM)	280
Type	Internal Gear Pumps
Valve / Seat / O-Ring	Cast Iron ASTM A48, Class 35B Valve
Valve Type	Internal Relief Valve

4924A Series Refrigeration Ammonia Internal Gear Pumps Information

Product Type
Gear, Positive Displacement
Features & Benefits
• Cast Iron • Double mechanical seal with barrier fluid for superior containment • Five sizes from 10 to 60 GPM
General Description
Viking Pump 4924A Series™ internal gear pump is the perfect solution for ammonia pumping (refrigerant R-717) due to efficiently keeping the ammonia in liquid form to make removing heat easier. It can handle capacities from 10 to 60 GPM (2.3 to 13.6 m³/h).
Materials of Construction
Casing, Head and Bracket - Cast Iron ASTM A48, Class 35B Rotor - Cast Iron, ASTM A48, Class 35B Shaft - ① Steel, ASTM A108, Grade 1045 ② Idler - Cast Iron, ASTM A48, Class 35B Idler Pin - Hardened Steel, ASTM A108 Grade 10L45 Bracket Bushing - Carbon Graphite Idler Bushing - Carbon Graphite Double Mechanical Seal - Carbon vs. Ni-Resist Faces, Neoprene Elastomers Static O-Ring Seals - Buna Return-to-Tank Relief Valve - Cast Iron ASTM A48, Class 35B