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Product features and benefits
- Resilient seated in accordance with EN 12334
- Face-to-face length acc. to EN 558-1, basic series 48 (DIN 3202, F6)
- With flange ends on both sides acc. to EN 1092-2
- 90% opening degree, piggable in flow direction
- Quick and easy cleaning of the disk by folding out without dismantling
- Easy seal replacement via inlaid O-ring in the disk
- Flexible and damped double shaft bearing in the disk
- Disk with hard stop damping in the body
- Shaft bearing in free moving bronze bushing
- With suspension eyes for easy installation
Versions:
- Internal shaft:
Product features and benefits
- Lever and weight:
Product features and benefits
- With outside shaft, with lever and weight in flow direction pre-installed on the right for vertical installation position
- Stabile, easily adjustable mounting of the weight lever with alignment key on the shaft
Material
- Lever: Stainless steel 1.4308
- Lever, weight and wireguard:
Product features and benefits
- With outside shaft, with lever and weight in flow direction pre-installed in the right for vertical installation position
- Stabile, easily adjustable mounting of the weight lever with alignment key on the shaft
- With pre-installed wire guard
Material
- Lever: Stainless steel 1.4308
- Wire guard: Stainless steel 1.4541
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Material
- Body: Ductile iron EN-GJS-400-15 (GGG-40)
- Bonnet: Ductile iron EN-GJS-400-15 (GGG-40)
- Check valve disk: Stainless steel 1.4308
- Bolts: Stainless steel A4 (DIN EN ISO 3506)
- Check valve shaft: Stainless steel 1.4057
- Shaft bearing: Zincfree bronze
- Check valve disk seal: NBR
Corrosion protection
- Internally and externally epoxy coated acc. to GSK guidelines
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