GD7 Self Cleaning Filter Housing
7" · Single · 1/2" - 1" metal (brass) thread · Bottom flush valve (self cleaning)
7" self cleaning filter housing with a flush valve at the bottom of the bowl. Opening the valve discharges the sand and sediment collected at the bottom through the hose connector without removing the housing, which extends maintenance intervals and keeps the filter working efficiently for longer.
- Cartridge length
- 7" B series washable
- Connection
- 1/2" - 1" metal (brass) thread
- Operating pressure
- 0.5 - 8.6 bar
- Operating temperature
- 4 - 45 °C
Stock codes5-FK-GD-7-SC205-FK-GD-7-SC255-FK-GD-7-SC32
Overview
It consists of a blue head and a clear bowl, which lets the cartridge condition be checked from outside. The metal (brass) threaded ports in the head are available in 1/2", 3/4" and 1" sizes.
Features
- Easy sediment flushing via the bottom valve
- Clear bowl shows the cartridge condition
- Metal (brass) threaded ports
- Used with the 7" B series washable filter
Applications
- Pre-filtration of mains water at building inlets
- Sediment and carbon filtration ahead of water purifiers
- Protection of boilers, water heaters and appliances
- Filtration of well and tank water
Models and Stock Codes
| Stock Code | Model | Connection | Flow* (L/min) | Cartridge | Single Box (mm) |
|---|---|---|---|---|---|
| 5-FK-GD-7-SC20 | GD7 Self Cleaning Filter Housing 1/2" | 1/2" | 12 - 18 | 7" | 120 × 110 × 300 |
| 5-FK-GD-7-SC25 | GD7 Self Cleaning Filter Housing 3/4" | 3/4" | 20 - 25 | 7" | 120 × 110 × 300 |
| 5-FK-GD-7-SC32 | GD7 Self Cleaning Filter Housing 1" | 1" | 35 - 40 | 7" | 120 × 110 × 300 |
Port threads are BSPP. * Recommended flow range by connection size. The single box size is the outer size of the product package.
Spare parts: 7" B series washable filter 6-04-YF7-B01 · Gasket 5-FK-GD-YED-09 · Silicone grease 5-FK-GA-YED-10 · Wrench 5-FK-GD-YED-02.
Technical Specifications
Operating Conditions
- Max. operating pressure
- 8.6 bar (125 psi)
- Min. operating pressure
- 0.5 bar (7.25 psi)
- Operating temperature
- 4 - 45 °C (39.2 - 113 °F)
- Water pH
- 6.5 - 9.5
- Suitable cartridge
- 6-04-YF7-B01 (7" B series washable)
- Use
- Cold water line
Materials and Construction
- Head
- Reinforced polypropylene (PP), blue
- Bowl
- Clear SAN
- Port thread
- Metal (brass)
- Gasket
- Elastomer (O-ring), pre-greased with silicone
- Box contents
- Wrench, bracket, screws, silicone grease
Operating Limits and Use Outside Them
| Parameter | Limit | Below | Above |
|---|---|---|---|
| Operating pressure | 0.5 - 8.6 bar | Flow drops; the gasket may not seat fully | Cracking and leaks at bowl and head; fit a pressure reducer |
| Water temperature | 4 - 45 °C | Freezing cracks the bowl; plastic becomes brittle | The bowl softens and deforms; sealing fails |
| Water pH | 6.5 - 9.5 | Acidic water wears gaskets and threads | Scale build-up and early gasket ageing |
Filter Change and Maintenance
- Shut off the mains water.
- Loosen the air vent (metal screw) to relieve the pressure in the system.
- Remove the bowl with the original wrench, clean it and insert the new filter.
- Check or renew the gasket and grease it with the silicone grease supplied in the box (5-FK-GA-YED-10).
- Fit the bowl to the head and tighten with the wrench; open the water and repeat the air venting.
Gaskets are supplied pre-greased; re-grease them at filter changes. Use PTFE tape only (no hemp or liquid sealant). Check for leaks for the first 48 hours; replace the housing at least every 5 years.
Packaging
| Stock Code | Box Size (mm) | Pcs / Box |
|---|---|---|
| 5-FK-GD-7-SC20 | 645 × 475 × 360 | 24 |
| 5-FK-GD-7-SC25 | 645 × 475 × 360 | 24 |
| 5-FK-GD-7-SC32 | 645 × 475 × 360 | 24 |
The housing wrench, bracket, mounting screws and silicone grease (5-FK-GA-YED-10) are included in the box.
Wholesale and OEM
Request a quote and lead time for this product
We quote distributors, installers and project contractors by stock code. Ask us about OEM and private label production as well.
