🔧 Calplas Pump Strainer P25/140 – Commercial-Grade Pool System Protection with 25-Litre Capacity

💧 Heavy-duty debris protection for commercial pools and high-capacity residential systems

📋 Product Overview

The Calplas Pump Strainer P25/140 represents professional-grade protection for demanding pool and aquatic facility applications. This robust strainer is engineered to capture debris before it reaches your valuable pump equipment, protecting impellers, seals, and internal components from damage while maintaining optimal water flow throughout your circulation system.

Constructed with industrial-strength polyester-reinforced fibreglass and featuring a generous 25-litre basket capacity, the P25/140 is designed for installations where debris loads are high and system reliability is non-negotiable. The transparent methacrilate (acrylic) lid provides instant visibility of basket contents, allowing maintenance staff to assess cleaning requirements at a glance without system shutdown.

This commercial-grade strainer is the intelligent choice for water park operators, aquatic centres, leisure facilities, and large residential installations where pump protection directly translates to reduced maintenance costs, minimized downtime, and extended equipment life. With its substantial 21.5 kg construction and corrosion-resistant materials, the P25/140 delivers the durability and performance that demanding applications require.

⭐ Key Features

✅ 25-Litre High-Capacity Basket – Generous debris collection volume means less frequent cleaning cycles, reducing maintenance labour and system interruptions in high-traffic facilities

✅ Polyester + Fibreglass Reinforced Construction – Industrial-grade composite body provides exceptional strength, corrosion resistance, and longevity even in harsh chemical environments

✅ Transparent Methacrilate Lid – Crystal-clear acrylic cover allows instant visual inspection of basket fill level without opening or system shutdown, optimizing maintenance scheduling

✅ 316 Stainless Steel Basket – Premium-grade stainless steel with 4mm perforations offers superior corrosion resistance, structural integrity, and effective debris capture without restricting flow

✅ DN150 (6-inch) Flanged Connections – Standard 150mm diameter inlet/outlet with PN10 flange rating (250 bar) ensures compatibility with commercial pool plumbing and provides secure, leak-free connections

✅ Tool-Free Quick-Access Design – O-ring sealed lid with stainless steel fittings enables rapid basket removal for cleaning without tools, minimizing maintenance downtime

✅ 415mm Body Diameter – Substantial chamber size optimizes flow distribution across the basket surface, reducing pressure drop and extending time between cleanings

✅ Commercial Pressure Rating – Designed for operating pressures up to 2.5-7 bar depending on configuration, suitable for high-flow commercial pumping applications

✅ UV-Resistant Materials – All external components resist ultraviolet degradation for outdoor installations and long-term performance reliability

✅ Heavy-Duty 21.5kg Construction – Robust weight indicates solid engineering and premium materials that won’t flex, crack, or degrade under demanding continuous-use conditions

🔧 Technical Specifications

Specification	Detail
Model	Calplas Pump Strainer P25/140
SKU	1419246214
Basket Volume	25 Litres
Body Diameter (D)	415mm
Inlet/Outlet Diameter (d)	315mm
Connection Length (L)	560mm
Overall Width (A)	165mm
Total Height (H)	785mm
Base Width (B)	495mm
Flange Size	DN150 (6-inch)
Flange Rating	PN10 (up to 250 psi)
Weight	21.5 Kilograms
Body Material	Polyester + Fibreglass (GRP)
Lid Material	Transparent Methacrilate (Acrylic)
Basket Material	Stainless Steel 316
Basket Hole Size	4mm (standard)
Optional Basket	2mm holes available for finer filtration
Sealing Method	O-ring compression seal
Fittings & Hardware	Stainless Steel
Design Pressure	2.5 – 7 bar (depending on configuration)
Maximum Flow Rate	Suitable for pumps up to 250 HP
Application Type	Commercial pools, water parks, aquatic centres
Installation Position	Suction side (before pump inlet)
Maintenance Access	Top-loading basket with hinged/removable lid

💰 Operating Costs & System Protection Value

💵 Maintenance Cost Reduction

The P25/140’s large 25-litre basket capacity directly translates to reduced labour costs for commercial facilities:

📊 Annual Labour Savings Calculation:

• Standard smaller strainer (10-litre): Requires cleaning 2-3 times per week during peak season
  • ❌ Annual cleaning cycles: ~130 cleanings × 15 minutes = 32.5 hours
• P25/140 (25-litre): Extended capacity reduces cleaning to once weekly
  • ✅ Annual cleaning cycles: ~52 cleanings × 15 minutes = 13 hours
• 💷 Labour savings: 19.5 hours × £15/hour (maintenance staff rate) = £292.50 per year

🔧 Pump Protection & Extended Equipment Life

⚡ Preventing Costly Pump Failures:

Commercial pool pumps protected by inadequate strainers frequently experience:

• Impeller damage from debris: £500-£1,200 repair cost
• Seal failures from particle intrusion: £300-£800 replacement
• Premature bearing wear: £400-£900 rebuild cost

📈 Equipment Life Extension:

• ❌ Without proper strainer: Pump life expectancy 3-5 years before major overhaul
• ✅ With P25/140 protection: Pump life expectancy 7-10 years with routine maintenance
• 💰 Avoided replacement cost: Commercial pump £2,500-£4,500 (extended life means delaying this expense 3-5 additional years)

💸 Energy Efficiency Through Optimal Flow

A clean, properly sized strainer maintains system efficiency:

🌊 Pressure Drop Comparison:

• ❌ Undersized or clogged strainer: Creates 0.3-0.5 bar pressure drop
• ✅ P25/140 properly sized and maintained: Minimal pressure drop 0.05-0.1 bar

Lower pressure drop means:

• Reduced pump motor load
• Lower energy consumption (estimated 3-5% energy savings on typical commercial system)
• Quieter operation
• Reduced wear on pump components

📊 Example Energy Savings (based on 3 HP commercial pump):

• Power consumption: 2.2 kW
• Operating hours: 16 hours/day × 365 days = 5,840 hours/year
• Energy reduction from optimal flow: 4% savings
• Annual consumption without optimization: 12,848 kWh/year
• Annual consumption with P25/140: 12,335 kWh/year
• ✅ Energy saved: 513 kWh/year
• 💷 Cost saving at £0.24/kWh: £123 per year

💡 Total Annual Value Proposition

Benefit Category	Annual Savings
💼 Reduced maintenance labour	£292.50
⚡ Energy efficiency gains	£123.00
🔧 Avoided pump repairs (annualized)	£150-£300
💰 Total Annual Benefit	£565-£715

⏱ Return on Investment: The P25/140’s protection value pays for itself through reduced operating costs, extended equipment life, and minimized unplanned downtime.

🎯 Real World Examples & Applications

🏊‍♂️ Commercial Swimming Pools

📍 Scenario: Municipal leisure centre with 25m × 12m competition pool, 8-hour daily operation during swim sessions

The P25/140 provides essential protection for high-bather-load environments where hair, swimwear fibres, bandages, and other debris enter the circulation system. The 25-litre capacity handles peak debris loads during busy swim club sessions without requiring mid-session cleaning, maintaining consistent water quality and circulation efficiency.

Installation context: Typically installed on the suction side of 3-5 HP circulation pumps, positioned for easy access by maintenance staff in plant rooms. The transparent lid allows quick visual checks during hourly pool-side inspections.

Performance expectations: Weekly cleaning during peak season, bi-weekly during off-peak periods. Debris capture prevents pump impeller damage and maintains designed flow rates for optimal filtration.

🌊 Water Parks & Splash Pads

📍 Scenario: Outdoor water park with multiple pool features, continuous operation 10-12 hours daily during summer season

Water parks generate extreme debris loads from outdoor environments (leaves, grass, insects) combined with high visitor numbers (sunscreen residue, hair, fabric particles). The P25/140’s robust construction and high-capacity basket are essential for maintaining system reliability when equipment failure would impact multiple attractions simultaneously.

Installation context: Multiple units required for facility-wide circulation systems, often in pairs or groups to allow isolation for cleaning without shutting down entire zones. Quick-access lid design minimizes maintenance time during operating hours.

Performance expectations: Daily inspection and cleaning during peak season, with basket typically 60-70% full after 8-12 hours of operation. Prevents catastrophic pump failures that would require expensive emergency callouts.

🏢 Hotel & Resort Pool Complexes

📍 Scenario: Four-star hotel with rooftop pool, spa pool, and decorative water features requiring 24/7 circulation

Resort environments demand absolute reliability as pool downtime directly impacts guest satisfaction and occupancy rates. The P25/140’s industrial construction provides the dependability required for continuous-operation installations where pump protection is critical to avoiding costly service interruptions.

Installation context: Often specified in new construction or major refurbishment projects where consulting engineers prioritize quality equipment for long-term reliability. The 21.5kg weight and flanged connections suit permanent installations in purpose-built plant rooms.

Performance expectations: Cleaning 2-3 times weekly depending on outdoor exposure and guest usage patterns. Visual inspection through clear lid allows proactive maintenance scheduling before basket becomes overfilled.

♨️ Spa & Wellness Facilities

📍 Scenario: Destination spa with therapy pools, vitality pools, and cold plunge pools requiring precise temperature and filtration control

Spa facilities often use multiple small-to-medium pool systems where each circulation pump serves a dedicated treatment pool. The P25/140 is ideal for protecting individual pump systems in these applications, where water quality standards are particularly exacting and equipment reliability supports the premium service offering.

Installation context: Individual strainers for each pool system, typically 1-2 HP pumps running continuously. Plant room space may be limited, so the P25/140’s vertical design with top-access lid suits confined installations.

Performance expectations: Weekly or bi-weekly cleaning depending on indoor environment and bather loads. The stainless steel basket resists chemical attack from enhanced sanitizer levels common in spa pools.

🔄 System Upgrades & Retrofits

📍 Scenario: Replacing undersized or deteriorated strainers on existing commercial pool circulation systems experiencing frequent pump issues

Many facilities operate with strainers that were marginal at installation or have degraded over years of service. Upgrading to the P25/140 resolves chronic problems including frequent cleaning, pump cavitation from restricted flow, and premature pump failure from inadequate debris protection.

Installation context: Retrofit installations require assessment of existing pipework and flange compatibility. The P25/140’s DN150 connections suit most commercial installations, though pipe modifications may be necessary for optimal positioning.

Performance expectations: Immediate improvement in maintenance frequency and pump reliability. Facilities often report 40-50% reduction in pump-related maintenance calls after upgrading to properly sized, quality strainers.

💡 Cost Savings Examples

💰 Scenario 1: Preventing Pump Impeller Damage

📍 Context: Community pool with 3 HP circulation pump experiencing recurrent impeller damage from debris intrusion

❌ Before P25/140 Installation (inadequate strainer):

• Impeller replacement required every 18 months: £750 parts + £350 labour = £1,100
• Annual cost (amortized): £733
• Additional downtime cost: Lost facility hire during repairs = £200-£400 per incident

✅ After P25/140 Installation:

• Properly protected pump with impeller life extending to 6+ years
• Impeller replacement cost (amortized): £183 per year
• 💷 Annual savings: £550
• ⏱ Downtime eliminated: No more emergency pump repairs and facility closures

💸 Scenario 2: Energy Savings from Optimal System Flow

📍 Context: Hotel with rooftop pool running 2.2 kW pump continuously

❌ Previous undersized strainer:

• Frequent clogging increased system pressure drop
• Pump working harder to maintain flow rate
• Energy consumption: 19,272 kWh/year (2.2 kW × 24 hrs × 365 days)
• Annual energy cost: £4,625 (at £0.24/kWh)

✅ With P25/140 proper sizing:

• Consistent optimal flow with minimal pressure drop
• Pump efficiency improvement: 4%
• Energy consumption: 18,501 kWh/year
• Annual energy cost: £4,440
• 💷 Annual savings: £185

📊 Comparison:

• ❌ Old strainer annual operating cost: £4,625
• ✅ P25/140 annual operating cost: £4,440
• 💰 Saving: £185/year just in energy costs

💵 Scenario 3: Labour Cost Reduction in Commercial Facility

📍 Context: Aquatic centre with previous 15-litre capacity strainer requiring frequent cleaning

❌ Previous smaller strainer:

• Cleaning required 3× per week during 6-month peak season
• Cleaning required 1× per week during 6-month off-peak season
• Total annual cleanings: (3 × 26 weeks) + (1 × 26 weeks) = 104 cleanings
• Time per cleaning: 20 minutes (access, clean, reassemble, restart)
• Annual labour: 104 × 20 min = 34.7 hours
• Labour cost: 34.7 hrs × £18/hr = £624

✅ With P25/140 25-litre capacity:

• Cleaning required 1× per week during peak season
• Cleaning required 1× per 2 weeks during off-peak
• Total annual cleanings: 26 + 13 = 39 cleanings
• Time per cleaning: 15 minutes (quicker access with improved design)
• Annual labour: 39 × 15 min = 9.75 hours
• Labour cost: 9.75 hrs × £18/hr = £176
• 💷 Annual labour savings: £448

📈 3-Year Payback Analysis:

• Combined annual savings (pump protection + energy + labour): £550 + £185 + £448 = £1,183
• ⏱ ROI timeframe: Equipment pays for itself through operational savings over its 15-20 year service life

🏆 Why Choose the Calplas P25/140

✅ Proven Commercial-Grade Durability – Polyester-fibreglass construction withstands decades of continuous operation in demanding aquatic environments without cracking, warping, or chemical degradation

✅ Superior Debris Capacity – 25-litre basket volume reduces cleaning frequency by 50-60% compared to standard residential-grade strainers, lowering labour costs and system interruptions

✅ Maximum Pump Protection – 316 stainless steel basket with 4mm perforations provides the ideal balance of debris capture and unrestricted flow, protecting expensive pump components from damage

✅ Transparent Inspection – Crystal-clear methacrilate lid enables instant visual assessment of basket fill level without opening system, optimizing maintenance scheduling and preventing overfilling

✅ Quick-Access Maintenance – Tool-free lid removal and basket extraction minimizes downtime during cleaning operations, critical for facilities where continuous circulation is required

✅ Professional Installation Standards – DN150 flanged connections with PN10 rating ensure secure, leak-free integration with commercial plumbing systems and compliance with industry standards

✅ Long-Term Value – Substantial 21.5kg construction quality and corrosion-resistant materials deliver 15-20+ year service life, providing exceptional cost-per-year-of-service value for commercial operators

✨ Summary

The Calplas Pump Strainer P25/140 is the professional’s choice for commercial pool and aquatic facility pump protection. With its generous 25-litre capacity, industrial-grade polyester-fibreglass construction, and 316 stainless steel basket, this strainer delivers the reliability and performance that demanding applications require.

By preventing debris-related pump damage, reducing maintenance labour through extended cleaning intervals, and maintaining optimal system flow characteristics, the P25/140 provides measurable operational cost savings while protecting your valuable circulation equipment. For facilities where reliability, durability, and long-term value matter, the Calplas P25/140 is the intelligent investment.