Jessberger JP-810.1050 Air-Operated Diaphragm Pump 3" 1050 l/min — ATEX Zone 2

The JP-810.1050 is the largest standard pump in the JP-810 series — a 3" AODD pump delivering 1050 l/min from a 9750 cm³ stroke volume that is more than three times that of the JP-810.700. At this scale, PVDF is replaced by the separate Conductive variant; the standard range covers PP, ALU and AISI 316, delivering the full chemical compatibility spectrum for high-throughput bulk operations. Viscosity ceiling reaches 55,000 mPas and solid passing extends to 12 mm, making the JP-810.1050 suited to the most demanding transfer operations in ATEX Zone 2 environments.

Purpose

The AODD operating principle means compressed air alternates between two chambers, driving a pair of flexible diaphragms back and forth. No electric motor contacts the fluid zone — making the JP-810.1050 inherently safe for flammable and explosive media classified for ATEX Zone 2. The pump is fully self-priming, can run dry without damage and handles media containing suspended solids up to 12 mm. For applications involving high-viscosity media that require pre-heating before transfer, the pump pairs well with a HeatXperts drum heater to reduce viscosity to pumpable levels.

Selecting your housing

Housing selection determines chemical compatibility and dictates the standard internal configuration. PP is the all-round choice for acids, alkalis and most aqueous media — the standard configuration pairs a Hytrel/Santoprene diaphragm with NBR/EPDM balls and PP seats. ALU (aluminium) is suited to solvents, fuels, oils and non-aqueous hydrocarbons — the standard configuration uses a Hytrel/Santoprene diaphragm with NBR/EPDM balls and stainless steel seats. AISI 316 stainless steel covers highly corrosive aqueous media, strong acids and alkalis, and food or pharmaceutical process fluids — the standard configuration pairs a Santoprene/PTFE composite diaphragm with PTFE balls and stainless steel seats. Contact us for configuration advice specific to your medium and operating conditions. For highly aggressive halogenated solvents or oxidising acids requiring PVDF housing at this flow rate, the JP-810.1050 Conductive version is available as a separate product.

Key features

• AODD operating principle — no electrical components in the fluid path, inherently safe for flammable media
• Dry-running capable — no mechanical seal, no damage if air supply continues with empty chamber
• Self-priming — pulls liquid from 5 m dry or 9.8 m wet suction lift without manual priming
• Passes solids to 12 mm — large-bore ball-check design handles the most heavily loaded process streams
• Adjustable flow and delivery head via inlet air pressure — no frequency inverter required
• ¾" air connection — handles high air demand at full 1050 l/min flow without restriction
• Separable manifold — allows two different media to be pumped simultaneously
• Easy field maintenance — modular design, standardised spare parts kit available
• Available in PP, ALU and AISI 316 housing — matched diaphragm and seal configuration per material

Certification & Approvals

• ATEX Zone 2 gas: II 3/3 G Ex h IIC T4 Gb
• ATEX Zone 2 dust: II 3 D Ex h IIIB T 135°C Db X
• CE marked

Technical Specifications

• Drive: compressed air (non-lubricated)
• Air connection: ¾" BSP
• Max. air pressure: 8 bar
• Fluid connection: 3" BSP
• Max. flow rate: 1050 l/min
• Max. delivery head: 80 m
• Suction lift (dry): 5 m
• Suction lift (wet): 9.8 m
• Max. solid passing: 12 mm
• Max. viscosity: 55,000 mPas
• Stroke volume: 9750 cm³
• Noise level: 82 dB (at max. air pressure)
• Housing materials: PP, ALU, AISI 316

Typical media by housing

• PP: dilute acids, alkalis, detergents, aqueous chemical solutions, water treatment chemicals
• ALU: solvents, fuels, oils, hydrocarbons, non-aqueous media compatible with aluminium
• AISI 316: highly corrosive acids and alkalis, aggressive aqueous media, food and pharmaceutical process fluids

Applications

• Highest-throughput bulk transfer from road tankers, railcar unloading and large storage vessels at 3" pipework
• Transfer of extreme-viscosity process fluids up to 55,000 mPas — heavy polymers, bitumen, tar and crude fractions
• Coarse slurry and large-solid transfer — 12 mm passing diameter for process streams with large particulates
• Large reactor and vessel charging in chemical, petrochemical and polymer plants at full process rate
• Offshore and terminal operations requiring the highest ATEX-certified AODD flow capacity available
• Large-scale food and pharmaceutical processing — AISI 316 housing for high-throughput hygienic bulk operations

Operational Requirements

• Air supply must be clean, dry and non-lubricated — do not use lubricated air (damages internal seals)
• Inlet air pressure must not exceed 8 bar — operating above rated pressure reduces diaphragm life
• Can be run dry without damage — no minimum flow requirement
• Ensure fluid connection piping is adequately supported — do not use the pump housing as a pipe anchor
• If the pump is stalled (air on, no flow), the diaphragm is under constant load — avoid prolonged stall conditions
• Verify chemical compatibility for the specific medium and temperature before commissioning

JP-810 Series — Other Sizes

• One size smaller: JP-810.700 — 2" BSP, 700 l/min, PP/PVDF/ALU/SS