STA-RITE
Frequently asked questions
Common questions about STA-RITE from 3G Electric.
What is the difference between a STA-RITE shallow-well jet pump and a straight centrifugal pump?
STA-RITE shallow-well jet pumps use an ejector to create suction and are designed for wells with water levels up to about 25 feet deep. They are typically self-priming and can handle some air in the suction line. Straight centrifugal pumps, such as the JHF or JHD series, do not use an ejector and are not self-priming; they require a flooded suction or priming before operation. Centrifugal pumps generally provide higher flow rates at lower heads and are used for water transfer, circulation, and boosting where the water source is above the pump or already pressurized.
What does TEFC mean on a STA-RITE pump motor?
TEFC stands for Totally Enclosed Fan-Cooled. This motor enclosure prevents dust, dirt, and moisture from entering the motor housing. A fan attached to the motor shaft circulates air over the exterior fins for cooling, but the internal components are sealed from the environment. STA-RITE pumps with TEFC motors, such as the JHF51HL and JHD-62HL, are suitable for outdoor or damp locations where open motors would be at risk. TEFC motors are not submersible; they are protected against splashing water but should not be submerged.
Can a STA-RITE straight centrifugal pump be used for pressure boosting?
Yes, STA-RITE straight centrifugal pumps are commonly used for pressure boosting in water systems. They can increase water pressure from a municipal supply or a storage tank. When selecting a pump for boosting, consider the required flow rate, the desired pressure increase, and the pump's maximum head rating. For example, the JHF51HL delivers up to 140 ft of head, which equates to approximately 60 psi. Ensure the pump's intake is supplied with adequate pressure to avoid cavitation. A pressure tank and switch may be needed to maintain consistent system pressure.
What voltage options are available for STA-RITE shallow-well jet pumps?
STA-RITE shallow-well jet pumps are available in several voltage configurations. The PNC-10 model, for instance, operates on 115/230V AC single-phase power. This dual-voltage design allows the pump to be wired for either 115V or 230V, depending on the available electrical supply. When ordering, confirm the voltage requirement of your site. Some models may be factory-set for one voltage and can be reconnected in the field by following the wiring diagram. Always verify the motor nameplate and consult a qualified electrician for installation.
How do I select a replacement for an existing STA-RITE pump?
To select a replacement STA-RITE pump, gather the model number and specifications from the existing pump's nameplate. Key details include horsepower, voltage, phase, inlet and discharge sizes, and maximum head. If the exact model is discontinued, identify a current model with matching or superior performance. Consider the application: well depth, required flow rate, and pressure needs. 3G Electric can assist with cross-referencing part numbers and suggesting alternatives based on the original specifications. Provide as much information as possible, including photos of the nameplate and installation if available.
Does 3G Electric supply STA-RITE products?
Yes — 3G Electric (S) Pte. Ltd. supplies STA-RITE products. We stock the STA-RITE catalog and supply genuine factory-original products with full manufacturer warranty and technical support.
