Introduction
An air driven liquid pump is a pump that uses the compressed air to drive the pumping of the liquid, and it is used in the industrial, the chemical, the food, and the many other applications for the transfer, the dosing, and the circulation of the liquids, particularly in the hazardous and the explosive environments. The air driven liquid pump consists of a pump body, a drive chamber in which the compressed air acts on the diaphragm or the piston, and the inlet and the outlet valves, and it operates by the alternating pressure of the compressed air on the drive, which moves the diaphragm or the piston and draws the liquid in through the inlet and expels it through the outlet; the air driven liquid pump is safe for the use in the hazardous environments, since it has no electrical components, and it is self-priming, can run dry, and is portable, and it provides a variable flow rate and pressure, controlled by the air supply, and it is used for the transfer of the chemicals, for the dosing of the additives, for the filling, for the circulation of the liquids, and for many other applications, and it is available in various sizes and materials, such as the polypropylene, the PTFE, and the stainless steel, for the compatibility with the chemicals; the air driven liquid pump is an essential component in the many fluid systems. Air driven liquid pumps are used in the chemical industry, in the pharmaceutical industry, in the food and the beverage industry, in the water treatment, and for many other applications. With their air-driven and safe operation, air driven liquid pumps are essential for the liquid transfer.
Air Driven Liquid Pump LADP-T2012
Air Driven has a pressure ratio of 720:1 making it capable of delivering a maximum outlet pressure of up to 75,000 psi. The pump operates with an air drive connection of 3/4" female and ...
Air Driven Liquid Pump LADP-T2011
Air Driven has a 30:1 pressure ratio, allowing it to generate a maximum outlet pressure of 240 bar, making it suitable for high-pressure applications. Our air driven liquid pump provides...
Air Driven Liquid Pump LADP-T2010
Air Driven operates with a 4:1 pressure ratio for efficient pressure intensification. It delivers a maximum outlet pressure of 32 bar, ensuring suitability for industrial applications. W...
Standards
Complies with the above standards, but is not limited to them.
Features
1. Air-driven liquid pump for transferring, pressurizing and circulating liquids using compressed air.
2. Pneumatic diaphragm or piston pump with air motor, safe for flammable/hazardous liquids without electricity.
3. Suitable for chemical, petrochemical, pharmaceutical, paint and industrial fluid transfer.
4. Includes pump body, air motor, inlet/outlet ports, muffler, mounting and manual.
5. Self-priming, explosion-proof, handles corrosive/abrasive/viscous liquids with variable flow/pressure.
FAQ
Q1: What testing scenarios is this pump mainly applied to?
A: The air-driven liquid pump uses compressed air (4-8 bar) to drive a diaphragm or piston, transferring or pressurizing liquids without electricity - inherently safe for flammable, explosive, or hazardous environments. Used in chemical (transferring solvents, acids, bases, corrosive chemicals; drum emptying; dosing), petrochemical/oil (fuel transfer, oil sampling, tanker unloading, hazardous liquid transfer in Zone 1/2 explosive areas), pharmaceutical (solvent transfer, API solution handling, cleanroom-compatible models), paint/coating (paint, ink, resin transfer, circulation, spray feed), and industrial (coolant circulation, wastewater, deionized water, aggressive fluids). Types: air-operated double diaphragm (AODD - most common, self-priming, handles solids/viscous), air-driven piston (high pressure, metering), air-powered drum pump. Flow from L/min to m3/h; pressure up to 100+ bar (piston). No electricity = intrinsically safe (no spark risk).
Q2: What standards does the pump comply with?
A: Complies with ATEX/IECEx (explosive atmospheres - air-driven is inherently safe, but housing/certification for Zone 1/2), ISO 9001, CE (machinery, pressure equipment PED), FDA/EC 1935/2004 (food/pharma contact materials if sanitary model), and GB/T standards. Hardware meets flow/pressure ratings, material compatibility (wetted parts: PP, PVDF, stainless 316L, Hastelloy, PTFE depending on chemical), air consumption, and seal integrity. For hazardous areas, ATEX/IECEx certification may be required for the air supply/electrical controls (pump itself is air-driven and safe). For food/pharma, sanitary design (3A, EHEDG) with clean-in-place (CIP) capability. For pressure systems, PED/ASME compliance if >0.5 bar. Material selection critical: verify chemical compatibility (Elastomer: EPDM, Viton, PTFE; housing: PP, PVDF, 316L, Hastelloy C).
Q3: What is the warranty period for the whole pump and key components?
A: Whole pump covered 12-24 months. Diaphragms (wear - flex fatigue, chemical attack; replace every 3-12 months depending on use/chemical), balls/seats (check valves - wear from abrasive solids; replace), air motor seals (wear - replace), and muffler (clogs with oil/dust - clean/replace) are consumables/accessories. Damage from improper use, dry running (diaphragm pumps tolerate brief dry run but prolonged damages seals), incompatible chemical (attacks wetted parts/diaphragm - leaks, catastrophic failure), abrasive solids (wear balls/seats/diaphragm), freezing (liquid in pump freezes, cracks housing), exceeding pressure rating, or unauthorized repair is excluded. Extended warranty and spare parts kits available. Diaphragms 3-12 months (chemical dependent); air motor 3-7 years; housing 5-15 years (if compatible material).
Q4: Is this device difficult to operate? Is professional training required?
A: Simple: connect compressed air (4-8 bar, filtered/lubricated per manufacturer - FRL unit: filter, regulator, lubricator), connect inlet (submerged or from tank) and outlet (to destination), open air supply, pump starts automatically (AODD self-primes), adjust flow via air pressure regulator, stop by closing air valve. No professional training required for basic transfer, but chemical compatibility and hazardous area safety are important. Training half day provided. Safety: COMPRESSED AIR (hose whip - secure hoses, use safety cables; air pressure >8 bar damages pump; muffler exhaust can be noisy - wear hearing protection, point away), CHEMICAL (know SDS of liquid; verify wetted material compatibility (diaphragm, balls, housing, seals); incompatible chemical causes leaks/failure - PPE (gloves, goggles, face shield for corrosives); spill containment; secondary containment for drums), EXPLOSIVE (air-driven is spark-free but ensure air supply clean; for Zone 1/2 verify ATEX; no electrical equipment nearby; bonding/grounding for flammable liquid transfer (static electricity - ground drums/pumps, use conductive hoses), PRESSURE (do not exceed outlet pressure rating; closed outlet can overpressurize - use pressure relief valve; do not block outlet while running), do not run dry for extended periods (AODD can tolerate but seals wear), do not pump gas/air (designed for liquid), for viscous liquids: slow down (lower air pressure), larger ports, shorter suction lift, for abrasive liquids: use check valves with hardened seats, expect shorter wear life, for flammable liquids: ground/bond everything, use conductive hoses, no open flames, ATEX area classification.
Q5: What is the typical lead-time for order delivery?
A: Standard models require 7-30 working days. In-stock units can ship within 3-7 working days. Custom configurations or large built-to-order systems may require additional time, and we confirm the exact schedule before order confirmation.
Q6: Is regular calibration required? What is the recommended calibration cycle?
A: Air-driven pumps generally do not require analytical calibration, but performance verification recommended: flow rate (measure output over time) and pressure (with pressure gauge) every 3-6 months or when performance drops. Air supply pressure/quality (FRL: filter, regulator, lubricator) checked monthly. Routine: inspect diaphragms (leaks, bulging - replace), check valves (leakage - replace balls/seats), air motor (lubrication, muffler), and hoses (wear, grounding). For dosing/metering applications (piston pump), calibrate flow rate gravimetrically or volumetrically periodically (every 1-3 months) and maintain records if used for GMP dosing. For ISO 17025, document performance checks. Replace diaphragms on schedule (preventive maintenance) rather than waiting for failure (unexpected leak of hazardous chemical).
Q7: Are supporting consumables universal?
A: Diaphragms, balls, seats, and seals are pump-model-specific (use OEM wet kit or certified compatible - material must match chemical). Air motor parts specific. Compressed air FRL units and hoses universal. Long-term cost: diaphragm/valve wear kits (every 3-12 months, $50-$500/kit), air motor service (periodic), and energy (compressed air is expensive to generate - efficient use). Spare parts kits (wet end rebuild) recommended for critical applications.
Q8: Can I customize parameters or supporting accessories?
A: Customization includes pump type (AODD double diaphragm (general, self-priming, handles solids), piston (high pressure, metering/dosing), drum pump (barrel emptying), peristaltic (hose pump, gentle, sterile)), wetted materials (PP (general, acids), PVDF (strong solvents/acids), 316L stainless (food/pharma, solvents), Hastelloy C (highly corrosive), PTFE-lined), diaphragm/seal material (EPDM (acids/ketones), Viton (oils/fuels), PTFE (universal chemical, high temp), Santoprene (abrasive/water)), flow (L/min to m3/h), pressure (up to 100+ bar piston), sanitary (3A/EHEDG, CIP, polished 316L for food/pharma/biotech), features (FRL unit, pressure relief, pulsation dampener (AODD pulsates), leak detection, stroke counter (for dosing), auto shut-off, ATEX/IECEx, food-grade). Accessories: spare diaphragm/valve kit, FRL (filter/regulator/lubricator), pulsation dampener, suction/discharge hoses (conductive for flammable), drum tube, mounting bracket, pressure gauge, certifications (ATEX, CE, FDA, 3A, ISO 9001).
Q9: Does the purchase include on-site installation and commissioning service?
A: Standard delivery includes pump, air muffler, mounting, manual (FRL, hoses, spare parts often separate). On-site installation not required for standard (connect air and hoses, use). On-site training available at additional cost for chemical/hazardous area teams (material compatibility, ATEX, grounding, maintenance). For sanitary/pharma or high-pressure systems, commissioning and IQ/OQ may be recommended. Always verify material compatibility and leak-test before transferring hazardous chemicals.
Q10: What types of liquids are compatible with this equipment?
A: Compatible: water-based liquids, acids/bases (with compatible wetted material), solvents (with compatible diaphragm/housing), oils/fuels, paints/inks/resins (viscous, abrasive), pharmaceuticals (sanitary model), food/beverage (sanitary model), wastewater, and viscous/abrasive liquids (AODD handles solids up to certain size). Not compatible: gases/vapors (liquid pump only), highly abrasive slurries without hardened wear parts (accelerated wear), liquids with large solids beyond ball valve clearance (clogs), liquids at temperature beyond diaphragm rating (PTFE higher, rubber lower), liquids incompatible with wetted materials (verify chemical resistance chart - e.g., acetone attacks some rubbers, strong oxidizers attack metals), or liquids requiring precise metering without calibration (AODD is for transfer, not precision dosing - use piston/metering pump). For flammable liquids: use in ventilated area, ground/bond, ATEX-rated if Zone 1/2. For food/pharma: use sanitary 3A/EHEDG model with food-grade materials - do not use industrial pump for food (cross-contamination).
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