Metallic-sealing gate valves for demanding media and elevated temperatures — two variants for different applications. The IKO®plus with stainless steel seat rings for hot water and steam pipelines; the KFS with zinc-free bronze seat rings for wastewater and heavily polluted media. Both in ductile iron, acc. to EN 1171.
▸ Key Features
VAG IKO®plus — Hot Water / Steam
- Metallic sealing acc. to EN 1171 (DIN 3352 – Parts 2 and 3)
- Stainless steel seat rings for universal application in high-temperature media
- Internal stem thread with maintenance-free stem seal
- Corrosion-resistant synthetic-resin coating
- Available with non-rising or rising stem, with handwheel
- Short (F4) and long (F5) face-to-face lengths
VAG KFS — Wastewater
- Metallic sealing acc. to EN 1171 (DIN 3352 – Parts 2 and 3)
- Zinc-free bronze seat rings and stem nut — specifically resistant to wastewater media
- Special type with external stem thread suitable for heavily polluted media
- Adjustable stuffing box and drain plug
- Available with non-rising or rising stem, with handwheel or electric actuator
- DN 400, DN 700 and DN 1200 require gearbox at full operating pressure
▸ Technical Specifications
| Parameter |
VAG IKO®plus |
VAG KFS |
| Application |
Hot water, steam, industry |
Wastewater, heavily polluted media, industry |
| Nominal diameters |
DN 40 – 300 |
DN 40 – 1200 |
| Nominal pressure |
PN 6 / 10 |
PN 10 |
| Face-to-face length |
EN 558, Series 14 (F4) and Series 15 (F5) |
EN 558, Series 14 (F4) — flat type |
| Flange connections |
Both sides acc. to EN 1092-2 |
Both sides acc. to EN 1092-2, PN 10 |
| Sealing system |
Metallic sealing acc. to EN 1171 |
Metallic sealing acc. to EN 1171 |
| Seat rings |
Stainless steel |
Zinc-free bronze (wastewater resistant) |
| Corrosion protection |
Synthetic-resin coating |
Internally and externally epoxy coated |
▸ Materials
| Component |
VAG IKO®plus |
VAG KFS |
| Body |
Ductile iron EN-GJS-400-15 (GGG-40) |
Ductile iron EN-GJS-400-15 (GGG-40) |
| Bonnet |
Ductile iron EN-GJS-400-15 (GGG-40) |
Ductile iron EN-GJS-400-15 (GGG-40) |
| Stem |
Stainless steel 1.4057 |
Stainless steel 1.4057 |
| Wedge |
Ductile iron EN-GJS-400-15 (GGG-40) |
Ductile iron EN-GJS-400-15 (GGG-40) |
| Seat rings |
Stainless steel |
Zinc-free bronze (wastewater resistant) |
| Stem nut |
Brass |
Zinc-free bronze (wastewater resistant) |
▸ Available Variants
| Variant |
Description |
| IKO®plus — non-rising stem, short (F4) |
DN 40–300, PN 6/10, with handwheel |
| IKO®plus — non-rising stem, long (F5) |
DN 40–300, PN 6/10, with handwheel |
| IKO®plus — rising stem, short (F4) |
DN 40–300, PN 6/10, with handwheel |
| IKO®plus — rising stem, long (F5) |
DN 40–300, PN 6/10, with handwheel |
| KFS — non-rising stem (F4) |
PN 10, with handwheel or electric actuator |
| KFS — rising stem (F4) |
PN 10, with handwheel or electric actuator |
▸ Applications
VAG IKO®plus
- Hot-water pipelines
- Steam installations
- Industrial applications
VAG KFS
- Wastewater treatment and conveyance
- Heavily polluted media
- Industrial applications
