HORIZONTAL RECESSED
IMPELLER PUMPS
CUP STYLE IMPELLER For Waste Water Treatment Plants


The stuffing box cartridge is bolted to the stuffing box ring which allows for the two pieces to be manufactured from different materials. ESSCO has supplied many customers with a cast iron stuffing box ring and an optional stainless or bronze stuffing box cartridge. This eliminates many problems associated with corrosion as experienced with standard cast iron stuffing boxes. The standard packing gland is bronze, but is available in an optional stainless or alloy material.

POWER FRAME: ESSCO provides a heavy duty, cast iron, cartridge type power frame. The power frame contains heavy duty bearings which are available for grease or oil lubrication. ESSCO utilizes state of the art bearing designs which are supplied by major bearing manufacturers. A unique feature of ESSCO’s pump design is the option of upgrading to a one size larger power frame. A pump with a small power frame can be upgraded to a medium sized power frame and a unit with a medium power frame as standard can be upgraded to a large power frame. This option is popular with owners who wish to keep a minimum of spare parts while spanning multiple pump sizes.

SHAFT AND BEARINGS: ESSCO has designed the shaft and bearing combination around a minimum B10 (L10) life of 100,000 hours.

 

ESSCO furnishes heavy duty pump shafts from the best quality steel standard which have a tensile strength of 150,000 PSI and a yield strength of 130,000 PSI. Each shaft and bearing set provides the maximum life possible. 316 SS shafts are available as an option.

SHAFT SLEEVE: ESSCO offers a wide variety of shaft sleeve materials. Standard shaft sleeves are hardened 400 series stainless steel. Each shaft sleeve has an internal O-ring to seal between the shaft and the sleeve which prevents the pumped liquid from damaging the shaft. The standard shaft sleeve is key driven to insure rotational integrity. Typical options for shaft sleeves are 316 SS, Stellite, Hastaloy along with many others.

PACKING AND MECHANICAL SEALS: ESSCO furnishes graphite impregnated non-asbestos braided packing as a standard. Each packed stuffing box contains (5) five rings of packing and a Teflon lantern ring. The standard packing box can accommodate double mechanical seals as well as cartridge style mechanical seals.

LIQUID END MATERIALS: (Check desired material)
Nihard 550 Brinnell (Standard Material)
Nihard 650 Brinnell
Nihard 650-750 Brinnell
HCI 550 Brinnell (Alternate Standard Material)
HCI 650 Brinnell
HCI 650-750 Brinnell



ESSCO Pumps
4935 Telegraph Rd
Los Angeles, Ca 90022
(323)261-2181
Fax: (323)261-1523
Web site: www.esscopumps.com
email: sales@esscopumps.com

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