PUMP D 6300-27-3-1 BY CHT SLOVAKIA S.R.O.
Application of Pump D 6300-27-3-1
The D 6300-27-3-1 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 6300-27-3-1 pump and its variants depend on the impeller outer diameter and rotation speed.
This is an important parameter to consider when designing external networks (pipeline systems and fittings) and selecting pumping equipment.
Overall dimensions and weight of the D 6300-27-3-1 pump and its variants also depend on impeller outer diameter and rotation speed.
Drive
Asynchronous three-phase induction motors with a squirrel-cage rotor are used as the drive for the D 6300-27-3-1 pump, depending on impeller diameter and rotation speed. The overall efficiency of the system (pump + motor) is 86%.
Main Design Requirements of the D 6300-27-3-1 Pump
- High reliability and cost-effectiveness.
- Extended operational range through impeller trimming and variable rotation speed.
- Long service life – average time before major overhaul at least 45,000 hours (with proper maintenance).
- Dynamic stability across the full operating range.
- Stable, continuously decreasing head characteristic to ensure reliable operation in parallel connections.
- Proper material selection for main components to guarantee operational life.
- High degree of standardization.
- Ease of assembly, disassembly, maintenance, and repairability in operational conditions.
Structural Features of the D 6300-27-3-1 Pump
- Horizontal configuration ensures high vibration resistance, reduces shaft misalignment risk, and increases service life of components.
- Volute casing with horizontal split along the pump axis offers high maintainability, easy installation, and simple operation. Suction and discharge nozzles located at the lower part of the 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 the shaft, impeller, inlet and protective sleeves, bearings, fasteners, and pump half-coupling. Axial position of the impeller on the shaft is fixed with round nuts via the inlet and protective sleeves.
- Double-suction impeller reduces axial load on the rotor and improves cavitation performance.
- Rotor supported by external rolling bearings. Drive-side bearing (single-row radial ball) takes radial loads, while the opposite side bearing (single-row radial ball) takes radial and residual axial loads. Bearings are greased with grease; cooling is air-based.
- Shaft seals are gland-type with hydraulic barrier, supplied with sealing fluid to the seal barrier ring.
- Torque is transmitted from motor to pump via flexible sleeve-finger coupling.
Materials Used in D 6300-27-3-1 Pump by CHT Slovakia s.r.o.
Reliability, durability, and efficiency are ensured by high-quality materials:
- Pump casing, bearing housings, impeller, inlet sleeves, sealing rings – cast iron СЧ200.
- Pump shaft – carbon steel 45.
- Protective sleeves – stainless steel 30Х13.
Optional Features
- Higher-grade materials/coatings for flow parts to increase erosion resistance.
- Flow part optimization for reduced maintenance costs and longer service life.
- Mechanical seals reduce volumetric leakage and improve energy efficiency.
- API 682-compliant seal chamber allows use of seals from various manufacturers.
- Bearing units with liquid lubrication, oil cooling, and temperature/vibration monitoring.
- SKF rolling bearings for high precision, low friction, and extended operation at high speeds.
- Flexible disc coupling between motor and pump improves vibration performance.
- VDS monitoring system (vibration, speed, and temperature sensors) for predictive maintenance.
How to Buy Pump D 6300-27-3-1
You can purchase the D 6300-27-3-1 (double-suction centrifugal pump) directly from CHT Slovakia s.r.o., the official European supplier. Original manufacturer equipment, full technical compliance, certificates, and warranty are provided.
Ordering Procedure
- Send an email with the model, required configuration (pump with or without motor, speed 750/600 rpm, seal type, optional features), quantity, and delivery address.
- Call the listed contacts.
- Fill out the online request form.
A commercial offer with price, production/delivery times, and payment/delivery terms will be prepared promptly.
Delivery
From warehouse in Bratislava or directly from the manufacturer.
Contacts:
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
Pricing
Price depends on:
- Configuration (pump only or pump unit with 630 kW / 315 kW motor).
- Rotation speed (750 rpm – Q=5000 m³/h, H=32 m; 600 rpm – Q=4000 m³/h, H=20 m).
- Optional features (mechanical seals per API 682, SKF bearings, lubrication type, sensors, corrosion protection).
- Order volume.
- Delivery terms and logistics.
Exact pricing is available on request after specification of all parameters.
