• S150 through S4500 Silicone Carbide vs. Silicone Carbide

S1500, S2000, S3000, and S4500 model pumps are equipped with a stainless steel seal housing and a stainless steel cartridge type seal with solid si!icone carbide seal faces, This state of the art system can withstand extremely high pressure and utilizes anti-vibriation bellows to prevent the seal faces from separating even under the most extreme operating conditions.

The mechanical seals run in an oil-filled chamber reducing the chance of overheating and failure.

THERMAL OVERLOAD PROTECTION
Every Stancor "S" unit has two thermal overload klixons wound into the stator. If the pump should overheat for any reason, the overloads shut the pump off automatically.

DISCHARGE LINING/DIFFUSER
Every Stancor "S" series unit has a discharge lining as standard equipment. This lining eliminates wear on the pump housing from abrasive action and is available in a variety of materials such as nitrile, rubber, polyurethane, nylon, etc.

CONTACTOR
The contactor is located in the head of the pump. Klixons are wired directly into the contactor thus eliminating the need for a contactor in the control box.

IMPELLERS
Standard impellers are made of hardened stainless steel (17 -4ph) capable of withstanding both heavy abrasives and chemical attack. Impellers and rotor shafts are keyed and threaded for a double secure fit.

PERFORMANCE
Generally, it can be stated that Stancor "S" series pumps provide more overall efficiency - more gallons per minute (gpm) per horsepower (hp). This allows a customer to use a smaller "S" pump saving money on the unit and subsequent operating costs.

COATING
All Stancor "S" series pumps can be hardcoated
and teflon impregnated for extra protection in those extremely harsh operating environments. The process is dramatically effective and economical.

PORTABILITY
All Stancor "S" series pumps are Iitghtweight when compared to similar competitive pumps. The slimline design of the pumps facilitates installation in tight quarters.

A: Junction Chamber
All Stancor dewatering pumps are equipped wIth a built-in contactor wired to thermal switches embedded into the end coils of the stator. In the event of motor over-heating, the contactor is tripped and automatically resets when the motor cools. All e!ectric cables enter through a sealing gland. Water sealing and strain relief functions are separated. The entire junction chamber is sealed off from the motor to prevent burn out should moisture enter due to damage to the cable.

B: Motor
A dry, shell type, squirrel-cage induction motor is standard on all Stancor submersibles. Stator windings are triple dipped, class F Insulation, rated at 310°F (155°C). On all units pilot thermal sensors are embedded in the stator to protect the motor and exposed surfaces from overheating. All permissible and explosion proof models have especially long flame paths with very tight tolerances between all parts surrounding the motor to insure a secure housing in the event of an internal explosion.

C: Bearings
Both upper and lower bearings are prepacked with special high temperature grease.

D: Shaft
Every Stancor pump is designed with a short shaft overhang. Shaft deflection due to hydraulic forces is virtually eliminated. The result is a dramatic increase in bearing and seal life. All Stancor shafts are made of stainless steel.

E: Seal
One of the most critical components of Stancor submersible pumps is the unique lapped solid silicon carbide vs. silicon carbide seals. The Stancor balanced cartridge seal will withstand heat, corrosion and abrasion no other seals could survive. This compact unit consists of a lower balanced cartridge seal and an upper spring loaded mechanical seal assembly. The seals are arranged in tandem. each operating independent of the other in an oil chamber. The oil acts as a lubricating and cooling medium for the seal faces.

F: Liquid End
Adjustable abrasion resistant stainless steel impeller and rubber lined diffuser permit optimum efficiency to be maintained despite wear. Rubber c!ad, easily replaceable wear parts are standard.

G: Hose Connection
The discharge outlet can be placed in the straight out position or rotated 180° aiming the hose at an angle, eliminating kinks and bends, reducing friction losses.

H: O-rings
AlI mating components around motor are sealed with double o-ring seals.

I: Hardware
All Stancor fasteners and strainers are made of stainless steel.