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JPSM cutaway view, insulation in silver

JPSM

Buffer tanks without heat exchangers

  • buffer tank
  • 15 sizes · 3 Insulation
Volume
300–5,000
operating pressure
3–4.5 bar
test pressure
4.5–7.8 bar
Submit a request Data Sheet (PDF)

Sizes and Availability

15 sizes · 3 Insulation

As of Oct 28, 2026
  • Efficiency Class
  • Heat loss in W
  • Click a cell to open the item; use the arrow keys to move through the table.
9 of 31 combinations available for immediate delivery
Size Tank without insulation Ecoline Vlies silver Ecoline Vlies white Neodul® silver
300 300, Tanks without insulation: Diameter 550 mm Weight 55 kg Item No. 110300 Delivery time: approx. 4–6 weeks 300, Ecoline Vlies silver: Efficiency Class C 83 W Item No. 840001 Delivery time: approx. 4–6 weeks 300, Ecoline Vlies white: Efficiency Class C 83 W Item No. 840002 Delivery time: approx. 4–6 weeks 300, Neodul® silver: Efficiency Class B 64 W Item No. 840333 Delivery time: approx. 4–6 weeks
500 500, Tanks without insulation: Diameter 650 mm Weight 74 kg Item No. 110500 Delivery time: approx. 4–6 weeks 500, Ecoline Vlies silver: Efficiency Class C 106 W Item No. 840019 Delivery time: approx. 4–6 weeks 500, Ecoline Vlies white: Efficiency Class C 106 W Item No. 840020 Delivery time: approx. 4–6 weeks 500, Neodul® silver: Efficiency Class B 72 W Item No. 840334 Delivery time: approx. 4–6 weeks
600 600, Tanks without insulation: Diameter 700 mm Weight 80 kg Item No. 110600 Delivery time: approx. 4–6 weeks 600, Ecoline Vlies silver: Efficiency Class C 118 W Item No. 840022 Delivery time: approx. 4–6 weeks 600, Ecoline Vlies white: Efficiency Class C 118 W Item No. 840023 Delivery time: approx. 4–6 weeks 600, Neodul® silver: Efficiency Class B 68 W Item No. 840335 Delivery time: approx. 4–6 weeks
825 825, Tanks without insulation: Diameter 790 mm Weight 95 kg Item No. 110825 In stock, limited quantity 825, Ecoline Vlies silver: Efficiency Class C 127 W Item No. 840025 Available immediately, limited stock 825, Ecoline Vlies white: Efficiency Class C 127 W Item No. 840026 Available immediately, limited stock 825, Neodul® silver: Efficiency Class B 83 W Item No. 840336 Available immediately, limited stock
825 B 825 B, Tanks without insulation: Diameter 850 mm Weight 123 kg Item No. 110825B Delivery time: approx. 4–6 weeks 825 B, Ecoline Vlies silver: Efficiency Class C 130 W Item No. 840028 Delivery time: approx. 4–6 weeks 825 B, Ecoline Vlies white: Efficiency Class C 130 W Item No. 840029 Delivery time: approx. 4–6 weeks 825 B, Neodul® silver: Efficiency Class B 89 W Item No. 840337 Delivery time: approx. 4–6 weeks
1000 1000, Tanks without insulation: Diameter 790 mm Weight 112 kg Item No. 1101000 In stock, limited quantity 1000, Ecoline Vlies silver: Efficiency Class C 141 W Item No. 840004 Available immediately, limited stock 1000, Ecoline Vlies white: Efficiency Class C 141 W Item No. 840005 Available immediately, limited stock 1000, Neodul® silver: Efficiency Class B 98 W Item No. 840338 Available immediately, limited stock
1000 B 1000 B, Tanks without insulation: Diameter 850 mm Weight 144 kg Item No. 1101000B In stock 1000 B, Ecoline Vlies silver: Efficiency Class C 130 W Item No. 840007 Available immediately 1000 B, Ecoline Vlies white: Efficiency Class C 130 W Item No. 840008 Available immediately 1000 B, Neodul® silver: Efficiency Class B 100 W Item No. 840339 Available immediately
1100 1100, Tanks without insulation: Diameter 850 mm Weight 155 kg Item No. 1101100 Delivery time: approx. 4–6 weeks 1100, Ecoline Vlies silver: Efficiency Class C 130 W Item No. 840486 Delivery time: approx. 4–6 weeks Not included in the price list
1250 1250, Tanks without insulation: Diameter 950 mm Weight 155 kg Item No. 1101250 Delivery time: approx. 4–6 weeks 1250, Ecoline Vlies silver: Efficiency Class C 130 W Item No. 840010 Delivery time: approx. 4–6 weeks Not included in the price list 1250, Ecoline Vlies white: Efficiency Class C 130 W Item No. 840011 Delivery time: approx. 4–6 weeks Not included in the price list 1250, Neodul® silver: Efficiency Class B 107 W Item No. 840340 Delivery time: approx. 4–6 weeks Not included in the price list
1500 1500, Tanks without insulation: Diameter 1,000 mm Weight 165 kg Item No. 1101500 Delivery time: approx. 4–6 weeks 1500, Ecoline Vlies silver: Efficiency Class C 142 W Item No. 840013 Delivery time: approx. 4–6 weeks Not included in the price list 1500, Ecoline Vlies white: Efficiency Class C 142 W Item No. 840014 Delivery time: approx. 4–6 weeks Not included in the price list 1500, Neodul® silver: Efficiency Class B 122 W Item No. 840341 Delivery time: approx. 4–6 weeks Not included in the price list
2000 2000, Tanks without insulation: Diameter 1,100 mm Weight 198 kg Item No. 1102000 Delivery time: approx. 4–6 weeks 2000, Ecoline Vlies silver: Efficiency Class C 166 W Item No. 840016 Delivery time: approx. 4–6 weeks Not included in the price list 2000, Ecoline Vlies white: Efficiency Class C 166 W Item No. 840017 Delivery time: approx. 4–6 weeks Not included in the price list 2000, Neodul® silver: Efficiency Class B 113 W Item No. 840342 Delivery time: approx. 4–6 weeks Not included in the price list
2500 2500, Tanks without insulation: Diameter 1,250 mm Weight 236 kg Item No. 1102500 Delivery time: approx. 4–6 weeks
3000 3000, Tanks without insulation: Diameter 1,250 mm Weight 282 kg Item No. 1103000 Delivery time: approx. 4–6 weeks
4000 4000, Tanks without insulation: Diameter 1,400 mm Weight 361 kg Item No. 1104000 Delivery time: approx. 4–6 weeks
5000 5000, Tanks without insulation: Diameter 1,600 mm Weight 428 kg Item No. 1105000 Delivery time: approx. 4–6 weeks

Size 300

Size 500

Size 600

Size 825

Size 825 B

Size 1000

Size 1000 B

Size 1100

Size 1250

Size 1500

Size 2000

Size 2500

Size 3000

Size 4000

Size 5000

Description

The JPSM buffer tank is suitable for all hot water central heating systems, whether they use solid-fuel or oil-fired boilers, heat pumps, solar systems, or gas or electric instantaneous water heaters. Of course, we also offer the necessary accessories for the buffer tanks, such as the option to install electric heaters depending on power requirements.
Equipped with a sensor terminal strip for variable positioning of the sensors.

Custom designs in other sizes available upon request.

Features

  • Insulation options (to be ordered separately): We recommend this type of tank only with certain reservations when used in conjunction with a heat pump! This is because the “low” flow temperature of the heat pump (usually 50–55°C) can lead to limitations in hot water comfort. We recommend our EHSWP tank, which was developed specifically for heat pumps!
  • Highest build quality
  • High-quality S235JR steel in accordance with EN 10025
  • Operating pressure: 3 bar
  • Test pressure: 4.5 bar
  • Maximum operating temperature: 95°C
  • Option to install a contact sensor
  • 5-year warranty

Product video

JPSM in motion

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