- The duplex inlet/outlet valve drawings label valve balls and seats. Record those installed items and their interfaces. [source]
- Identify the rubber diaphragm, diaphragm housing and guide-rod/position-detection arrangement. [source] [source]
- Record piston, piston rod, seals and replaceable liner as oil-side service items. The diaphragm separates slurry from this region. [source] [source]
- Identify the propelling-liquid pump, filter, accumulator and oil make-up/discharge valve groups separately. [source] [source]
- Record the diaphragm-position detection and PLC-controlled oil-volume correction as a separate control system. [source] [source]
NSPI High-Pressure Diaphragm Pumps (Duplex / Triplex): Wet-End and Nameplate Identification
The official structural pages distinguish two-cylinder double-acting and three-cylinder single-acting pumps. Record the complete original model from the plate with its original punctuation and units.
OEM series guide
Identify the installed design before enquiry
NSPI manufactures piston diaphragm pumps for slurry transport. Its published duplex and triplex structures use hydraulic oil to move a rubber diaphragm while separating slurry from moving piston components. Identify the full pump type and cylinder/action arrangement.
NSPI High-Pressure Diaphragm Pumps (Duplex / Triplex)
Wet-end and wear-part identification
The official structural pages distinguish two-cylinder double-acting and three-cylinder single-acting pumps. Record the complete original model from the plate with its original punctuation and units. source source
Nameplate identification
Fields to request: manufacturer as marked; full type/model; serial number; build year if shown; plant tag; a sharp full-plate photograph. Collect the extra technical fields below from equipment records when they are not printed on the plate.
manufacturer_as_marked; full_original_type; cylinder_action; serial_no; valve_assembly_photo; diaphragm_guide_rod; oil_cylinder_type; hydraulic_station_plate