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Series 4300 Split Coupled Vertical In-Line

Series 4300 Split Coupled Vertical In-Line

Series 4300 Split Coupled Vertical In-Line

Product catalog summary
Overview: The Series 4300 Split Coupled Vertical In-Line Pumps are designed for commercial HVAC systems, offering space-saving, reliable, and maintenance-friendly solutions since 1969. These pumps integrate directly into pipework, eliminating the need for additional supports and alignments.
Installation: Vertical In-Line pumps require only pipe hangers for support, significantly reducing installation complexity and space requirements compared to horizontal pumps.
Maintenance: The design allows for easy servicing of the mechanical seal without disturbing other components, thanks to the split spacer coupling.
Reliability: The pump's design minimizes vibration and eliminates static shaft deflection, enhancing longevity and reducing downtime.
Flexibility: With a flow range exceeding 30,000 USgpm, the Series 4300 is adaptable to various applications, offering a small footprint and low installation costs.
Design Features: Key features include a dynamically balanced impeller, axially split coupling for easy maintenance, and robust construction materials like cast iron and stainless steel.
Materials of Construction: The pumps are constructed using materials such as cast iron, ductile iron, bronze, and stainless steel, ensuring durability and performance under various pressure and temperature conditions.
Sealing Arrangements: Two mechanical seal options are available, both easily serviceable without removing the pump or motor. The outside type offers high performance, while the inside type is more economical.
Specifications: The pumps feature single-stage, single or double suction designs with specific construction requirements for casing, impeller, shaft, and coupling. Mechanical seals are designed for optimal cooling and lubrication.
Additional Products: Armstrong offers complementary products like the dualArm Vertical In-Line pump and Suction Guide Strainer for enhanced system efficiency and space savings.
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Catalog excerpts

Series 4300 Split Coupled Vertical In-Line-1

Split Coupled Vertical In-Line Pumps

 Open the catalog to page 1
Series 4300 Split Coupled Vertical In-Line-2

Best Commercial HVAC Pump Design Available Since 1969 Life Cycle Value at Every Turn: INSTALLATION Vertical In-Line pumps, being integral components of the pipework, eliminate need for inertia bases, inertia base springs, flexible pipe connectors, field grouting and alignment. Pipe hangers sized for the weight of pump, piping and fittings are the only supports required. Pipe stools, with vibration isolating pads, may be installed under each pipe leg. SPACE SAVING Greatest floor space savings result when Vertical In-Line pumps are installed with Armstrong Suction Guides and Flo-Trex valves. Equivalent...

 Open the catalog to page 2
Series 4300 Split Coupled Vertical In-Line-3

Design Features Single Suction Industry standard motor designed for Vertical In-Line operation. Heavy cylindrical bracket with 360° register on each flange provides a rigid union of pump and motor. Motor shaft run-out limited to 0.001” (0.025 mm) TIR (Total Indicator Reading). Axially split, spacer type rigid coupling permits seal maintenance without disturbing pump or motor. Lightweight high tensile aluminum, precision bored and designed to reduce bearing load. Shaft deflection at mechanical seal limited to 0.002” (0.05 mm) TIR. Radially split volute with equal suction and discharge flange sizes....

 Open the catalog to page 3
Series 4300 Split Coupled Vertical In-Line-4

Split Coupled Vertical In-Line Pumps Material Construction Legend AB AI BF DI DBF AL BZ - All Bronze - All Iron - Iron Body, Bronze Fitted - Ductile Iron - Ductile Iron, Bronze Fitted - High Tensile Aluminum Bar - Cast Bronze ASTM B584 grade C84400 - Cast Iron ASTM A48 class 30 - Cast Ductile Iron ASTM A536 grade 65-45-12 F - Fiber N - Neoprene S - Steel BR-1 - Hard brass tubing ASTMB111 BR-2 - Brass Bar ASTM B16 SS-2 - Stainless Steel ASTM F593 Alloy group 2 SS-3 - Stainless Steel ASTM A276 type 303 SS-5 - Stainless Steel ASTM A276 type 316 SS-6 - Stainless Steel ASTM A276 type 416 Dr. Arnaldo...

 Open the catalog to page 4
Series 4300 Split Coupled Vertical In-Line-5

Split Coupled The axially split, spacer type rigid coupling permits seal maintenance without disturbing the pump or motor connections. The mechanical seal is accessible and easily replaced. (Outside multi-spring balanced mechanical seal is illustrated). 1) Split coupling with outside seal. Axially split coupling shown with coupling guard removed. Coupling bolts are still in place. Rotating element of seal is seen below the coupling, above gland plate. 2) Remove the coupling bolts. The coupling halves (with drive and annular positioning keys) are taken from motor and pump shafts. Loosen set screws...

 Open the catalog to page 5
Series 4300 Split Coupled Vertical In-Line-6

Provide Vertical In-Line (VIL) pumps, single stage, single or double suction type, with pump characteristics which provide rising heads to shut off. Refer to pump schedule for pump flows and heads and motor speed, enclosure, efficiency and power requirements and other system conditions. Provide Armstrong Series 4300 split-coupled type VIL units, with rigid spacer type coupling. Pump Construction: Pump Casing - Cast Iron with 125 psig ANSI/PN16 flanges for working pressure below 175 psig (12 bar) at 150°F (65°C) and Ductile Iron with 250 psig ANSI/PN25 flanges for working pressures to 375 psig...

 Open the catalog to page 6
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.