PUMP D 6300-80-2 BY CHT SLOVAKIA S.R.O.
Application of Pump D 6300-80-2
The D 6300-80-2 pump belongs to the general-purpose pump group and is designed for pumping water and liquids with properties similar to water in terms of viscosity and chemical activity, with temperatures up to 85 °C, containing solid inclusions not exceeding 0.05% by mass, with a maximum particle size of 0.2 mm, and microhardness not exceeding 6.5 MPa (650 kgf/mm²). It can be used across various industries, agriculture, heating systems, urban water supply, and more.
Technical Specifications
Nominal parameters of the D 6300-80-2 pump and its variants depend on the impeller outer diameter and rotational speed.
This is a critical parameter to consider when designing external networks (piping systems and fittings) and selecting pumping equipment.
Overall dimensions and weight of the D 6300-80-2 pump and its variants also depend on impeller diameter and rotational speed.
Drive
Synchronous three-phase electric motors are used as the drive for the D 6300-80-2 pump depending on impeller diameter and speed. The overall efficiency of such a system ranges from 81% to 85%.
Main Design Requirements
- High reliability and energy efficiency.
- Extended operating range via impeller trimming and variable speed.
- Long service life – average time to major overhaul at least 45,000 hours (with proper maintenance).
- Dynamic stability throughout the operating range.
- Stable, continuously decreasing head characteristic to ensure reliable operation in parallel pumping.
- Proper material selection for main components to guarantee operational durability.
- High standardization.
- Ease of assembly, disassembly, maintenance, and high repairability in operational conditions.
Structural Features
- Horizontal design ensures high vibration resistance, reduces shaft misalignment risk, and increases component service life.
- Volute casing with a horizontal split along the pump axis ensures high maintainability, easy service, installation, and operation. The inlet and discharge nozzles at the lower casing allow assembly/disassembly without disconnecting pipelines.
- Single-stage with double-suction impeller.
- Pump casing is a complex cast iron structure in two parts (upper – pump cover, lower – pump body), with semi-spiral inlet and spiral outlet channels. Inlet and outlet nozzles, support feet, drip trays, and bearing mounts are cast in the lower part. Inlet and outlet nozzles are oriented oppositely, perpendicular to the pump shaft.
- Rotor is a separate assembly, consisting of shaft, impeller, inlet and protective sleeves, bearings, fasteners, and pump half-coupling. Axial position of the impeller on the shaft is fixed via inlet and protective sleeves with round nuts.
- Double-suction impeller reduces axial load on the rotor and improves cavitation performance.
- Rotor supported by sliding bearings. Drive-side bearing takes radial loads; opposite side has a sliding bearing plus two single-row radial-thrust ball bearings for radial and residual axial loads. Bearings are lubricated with oil (ring lubrication), cooled by water; bearing housings have dedicated chambers.
- Shaft seals are gland-type with hydraulic barrier. Sealing fluid is supplied to the seal barrier ring.
- Torque transmitted from motor to pump via flexible sleeve-finger coupling.
Materials
- Pump casing, bearing housings, impeller, inlet sleeves, and sealing rings – cast iron СЧ200.
- Pump shaft – alloy steel 40Х.
- Protective sleeves – stainless steel 30Х13.
Optional Features
- Higher-grade materials/coatings for flow parts to improve erosion resistance.
- Optimized flow part design for reduced maintenance costs and extended service life.
- Mechanical seals to reduce volumetric leakage, improving energy efficiency; easy to service.
- Seal chamber designed to API 682 standards for compatibility with seals from various manufacturers.
- Bearing housings provisioned for temperature and vibration sensors for early fault detection and high reliability.
- SKF rolling bearings with high precision and low friction for high-speed operation with minimal noise, wear, heat, and energy consumption.
- Flexible disc coupling between motor and pump for improved vibration characteristics and reliability.
- VDS monitoring system: optional vibration, speed, and temperature sensors for predictive maintenance and real-time performance monitoring.
Purchasing Pump D 6300-80-2
CHT Slovakia s.r.o. is the official supplier of double-suction centrifugal pumps of the D series, including the high-capacity D 6300-80-2 (flow 6300 m³/h, head 80 m, motor power up to 2000 kW). We offer original European-quality equipment, with supply options to the EU and CIS countries.
This pump is ideal for large water supply systems, industrial facilities, district heating networks, and other applications requiring high-volume pumping of clean water or similar liquids.
Pricing
Exact pricing depends on:
- Bare pump (without motor and frame)
- Pump unit with electric motor
- Rotation speed (750 rpm or 600 rpm)
- Optional features (reinforced materials, API 682 mechanical seals, SKF bearings, VDS monitoring system, vibration/temperature sensors, etc.)
For a precise commercial offer and price for D 6300-80-2 (or variants D 6300-80a-2 / D 6300-80b-2), please contact us.
How to Order
- Call our managers for consultation, configuration selection, and pricing.
- Submit a request via our website form – we will call back promptly.
- Send an email with required configuration, delivery terms, and destination country.
Contact Information
Phones:
- +421 940 231 416 (Slovak/Russian)
- +421 918 974 521 (English/Russian)
Emails: info@eu-sumnt.com, marketing@eu-sumnt.com
Address: Röntgenova 3751/28, Bratislava, 85101, Slovak Republic
We prepare individual offers promptly, agree on production/delivery timelines, payment, and shipping terms. Full quality assurance, documentation (certificates of conformity), and technical support provided.
We look forward to assisting you in selecting and purchasing the D 6300-80-2 pump optimized for your needs!
