Low Maintenance Ductile Iron Strainer Basket Strainer PN16 Easy Operation

Working Pressure:16kg/cm²
Shell Test Pressure:24kg/cm²
Media:Water,Neutral Oil
Working Temperature:0-52°C
100%Fusion Bonded Epoxy Coating for Inner and Outside Surface

Flange Drilled According to EN1092 PN10,PN16

Size:DN50--DN200

Low Maintenance is Not a Feature — It's an Engineering Decision

Maintenance cost is the hidden denominator in every pipeline component's lifetime cost. A valve or strainer is bought once; it is maintained — cleaned, inspected, repaired, or replaced — dozens or hundreds of times over its service life. A strainer that requires one hour of operator time per cleaning, cleaned every two weeks, over a 20-year service life, consumes over 500 hours of labour — at any reasonable hourly rate, many times the original purchase price. "Low maintenance" is not a marketing phrase — it is a quantitative engineering objective: minimise the frequency of intervention, minimise the duration of each intervention, and maximise the intervals between scheduled maintenance events. The Model 5214 T type basket strainer is designed from the ground up around this objective: a large-capacity SS304 basket that fills slowly, a quick-access bolted cover that opens in minutes, a straight-through body that installs easily without special alignment, and a ductile iron + FBE construction that does not generate its own corrosion debris. Every single design choice serves the goal of reducing total operator touch-time over the strainer's life.

Product Overview

The Model 5214 is a flanged T type basket strainer engineered for low-maintenance operation, PN16 rated, DN50–DN200. It combines a straight-through T-shaped body for easy inline installation, a large-volume removable SS304 basket for extended cleaning intervals, a bolted top cover for fast basket access without pipe disconnection, and 100% fusion bonded epoxy coating (250 um DFT) on all internal and external surfaces. The body is cast from EN-GJS-500-7 (GGG50) ductile iron — impact-resistant, dimensionally stable, with 500 MPa tensile strength and 7% elongation. Flanges are drilled to EN1092 PN10/PN16. Manufactured by Shandong Huaze Valve Co., Ltd. (ISO 9001, since 1998), every strainer is hydro-tested at 24 bar shell pressure and spark-tested at 3 kV for coating integrity before shipment.

Key Features

Extended Cleaning Intervals — Large Basket, Fewer Interventions

The single most effective way to reduce maintenance is to reduce how often it needs to happen. The 5214's T-type body provides a large perpendicular basket chamber with 3–5 times the dirt-holding capacity of a comparably sized Y strainer. A basket that fills in 2 weeks in a Y strainer may take 6–10 weeks to fill in the 5214 — cutting cleaning events by 60–80%. For a facility with 20 strainers, this is the difference between a maintenance technician spending half their working week cleaning strainers versus visiting each strainer once a quarter. The SS304 basket resists abrasive wear from sand and scale, so basket replacement — another maintenance event — is also deferred.

Easy Operation — Quick-Access Cover, No Pipe Disconnection

Cleaning a strainer should not require a pipefitter. The 5214's bolted top cover is removed with standard tools, the basket is lifted straight out of the chamber for inspection and cleaning, then lowered back in and the cover resecured — all without touching the pipe flanges. The strainer body stays bolted into the pipeline. No gasket replacement (the cover gasket is EPDM, reusable for many cycles). No alignment check (the body wasn't moved). No re-commissioning of the pipe joint. Compare this to a Y strainer where the drain plug is at the bottom, the screen is accessed by feel, and a complete cleaning often requires removing the strainer from the line. The 5214's cover-access design turns a maintenance event from a pipework disassembly job into a simple basket-lift-and-clean operation that one operator can complete in minutes.

Easy Installation — Straight-Through Body, Standard Flanges

The T strainer's straight-through body design makes it one of the easiest pipeline components to install. The inlet and outlet flanges are on the same horizontal axis — the strainer simply bolts between two existing pipe flanges like a straight spool piece. No offset alignment. No angled connections. No special supports — the body's own integral flanges carry the load onto the pipe flanges. The EN1092 PN10/PN16 drilling matches the vast majority of European and ISO-standard flanged pipework. The flow direction arrow is permanently cast into the body — impossible to install backwards. For the installing contractor, the 5214 is a drop-in component that requires no special training, no special tools, and no special preparation beyond verifying flange alignment — which the installing crew is already doing for every flanged joint in the system.

No Self-Generated Debris — FBE Coating Prevents Internal Corrosion

A strainer's purpose is to capture debris — but many strainers become debris generators themselves. An uncoated or poorly coated cast iron body rusts from the inside when left water-filled between pump cycles. The rust particles shed from the body wall accumulate in the basket, increasing pressure drop, triggering more frequent cleaning. Worse: the operator cleaning the basket cannot easily tell whether the rust came from the upstream pipework or from the strainer body itself. The 5214 eliminates this ambiguity entirely. 100% internal and external FBE coating at 250 um DFT, spark-tested at 3 kV on every strainer, means the body surfaces are impermeable to water. The body cannot rust. The basket contents are 100% upstream debris — a diagnostic tool, not a self-inflicted maintenance burden.

Ductile Iron Body — Eliminates Unplanned Maintenance from Mechanical Failure

Unplanned maintenance — a flange crack, a body leak, a sudden failure requiring emergency shutdown — is the most expensive kind. The 5214's GGG50 ductile iron body has 500 MPa tensile strength and 7% elongation, compared to grey iron's ~250 MPa and near-zero elongation. If a ductile iron strainer is overloaded — excessive pipe stress, water hammer, accidental impact — it deforms before it fractures, and the deformation (a visible crack, a weeping joint, a distorted flange) provides warning before catastrophic failure. Grey iron provides no such warning; it shatters. For a strainer in an exposed location — a pump station floor, an outdoor wellhead installation, an equipment room subject to occasional bumps from tools or vehicles — the ductile iron body is insurance against the one maintenance event no facility manager wants: an unplanned shutdown.

SS304 Basket — Cleanable, Durable, Replaceable

The removable basket element is fabricated from stainless steel 304 — the same corrosion-resistant alloy used throughout Huaze's check valve internals. It can be cleaned by brushing, pressure washing, or chemical soaking without damage to the mesh or perforations. It resists the abrasive action of sand and scale far better than a plain steel or galvanised basket. When the basket eventually reaches the end of its service life — years of abrasive wear, mesh thinning, perforation distortion — it is replaced as a simple consumable, restoring the strainer to original performance without replacing the body. Keeping one spare basket per strainer (or one spare per size for a fleet) allows cleaning to be a swap-out operation: remove dirty basket, insert clean basket, clean the dirty one at the workshop on a non-urgent schedule. Total strainer downtime per cleaning: the time it takes to open and close a bolted cover.

Total Cost of Ownership — Why "Low Maintenance" Matters in Numbers

*Conservative estimates based on typical industrial/commercial water service. Actual figures depend on upstream debris load.

T Strainer vs Y Strainer — When Low Maintenance is the Deciding Factor

Materials of Construction

Technical Data

Applications — Where Low Maintenance Delivers the Highest Value

• Large Facilities with Many Strainers: Hospitals, universities, airports, and large commercial complexes where maintenance teams manage dozens of strainers across multiple buildings. Reducing per-strainer cleaning from 30 minutes to 10 minutes, and frequency from biweekly to quarterly, frees up hundreds of technician hours per year for higher-value work.
• Unmanned / Remote Pump Stations: Water supply booster stations, sewage lift stations, and irrigation pump stations where a maintenance technician visits once a month or once a quarter. The large basket capacity ensures the strainer does not block and trigger a pump alarm between scheduled visits.
• Building Services HVAC: Chilled water and hot water loops in commercial buildings. The strainers are typically in basement plant rooms with limited headroom — the top-access cover is far more ergonomic than a bottom-access Y strainer drain plug. The FBE coating eliminates body corrosion during summer/winter seasonal changeovers when pipework is drained.
• Cooling Tower Water Filtration: Open cooling towers generate continuous debris — atmospheric dust, biological growth, water treatment precipitates. The 5214's extended cleaning intervals are practical for cooling tower service where weekly Y strainer cleaning is unsustainable for the maintenance team.
• Industrial Water Reuse & Recirculation: Factories recirculating wash water, quench water, or process water that carries swarf, scale, and process residues. The SS304 basket withstands aggressive cleaning methods (pressure washing, chemical soak) between uses.
• Irrigation Pump Stations: Agricultural, landscape, and golf course irrigation where water sources (rivers, canals, ponds) carry continuous organic and inorganic debris. The 5214's low-maintenance design keeps the irrigation system operating reliably during peak growing season when maintenance resources are stretched thinnest.
• Neutral Oil Circulation: Lubricating oil and hydraulic oil systems where strainer cleaning is a planned maintenance event. The quick-access cover and removeable basket allow the strainer to be cleaned during the normal oil change interval — no additional downtime required.

Quality Assurance

• 100% Shell Hydrostatic Test — 24 bar, 60 sec — every strainer body
• 100% Cover Seal Test — 24 bar — every strainer assembly
• 100% Basket Inspection — Mesh integrity, perforation uniformity, weld quality — every basket
• 100% FBE Coating DFT — min 250 um, all surfaces — every strainer
• 100% Spark Test — 3 kV holiday detection — every strainer
• 100% Dimensional Check — Flange drilling per EN1092, face-to-face, cover bolt alignment
• EN 10204 3.1 Material Certificates available on request

Ordering Information

About Shandong Huaze Valve Co., Ltd.

Established 1998 in Qingdao, China. ISO 9001 certified manufacturer with 100–200 employees, 300 containers annual production capacity, and USD 5–6 million annual turnover. Huaze manufactures a comprehensive range of pipeline products for water, wastewater, fire protection, HVAC, irrigation, process water, and industrial applications: Gate Valves (DIN 3352 / EN 558, BS 5163, SANS 664), Swing Check Valves — flanged and wafer (DIN, BS 5153, Silent Metallic, Silent Resilient, Corrosion-Resistant Wafer), Strainers — Y Type and T Type Basket (Quick-Release, Low Maintenance), Air Valves, Globe Valves, Flap Valves, and Fire Hydrants. All products are individually factory-tested, coated, spark-tested, and shipped from Qingdao Port to distributors, water utilities, EPC contractors, pump OEMs, and building services contractors in 30+ countries worldwide.