DN50 … DN300
Installation
All knife-gate valves should be installed vertically up to max. 45° to the vertical. For other installation positions e.g. horizontally it is necessary to ensure that especially for larger diameters and actuators no bending stress appear at the stem/top- bridges, piston- stem etc., otherwise the function of the actuator and the tightness of the valve is not guaranteed. In such cases protective features are definitely needed.
A hanging installation of the knife-gate vale must be avoided!
Advice
The products descript in this documentation in the conditions of our delivery are no machinery according to annex 2 paragraph a respectively no partly completed machinery according to annex 2 paragraph g of the directive 2006/42/EC on machinery.
SPECIFICATION:
DESIGN
Center body consists of 1 part to be mounted between two flanges according to EN 1092-1 type 11 form B - PN10 (former DIN 2501). ANSI 150 on request.
MEDIA
Liquid and pulverised media with fibre particles, viscous media, drain water, sludge, food etc. (plastic granulates, sand or similar media on request). Not suitable for steam.
BODY
- GG-25 (grey cast iron), epoxy coated (heattreatment 190°C, 20min)
- stainless steel 1.4408.
SEALING
(FKM or PTFE on request)
GLAND
3-piece sealing set:
- 2x synthetic fibre, PTFE-coated
- 1x NBR-, EPDM or FKM-ring
KNIFE
Stainless steel 1.4301 or. 1.4401 (304 or 316)
STEM
Stainless steel 1.4305 or 1.4404 (304 or 316)
LEVER
Steel, lacquered
PRESSURE DISCHARGE
One-sided, two-sided on request
STEM
Not rising
PRESSURE RANGE
Please refer to the table
TEMPERATURE RANGE
- metal: on request
- NBR: -25°C ... +90°C
- EPDM: -35°C ... +120°C
- Attention: Temperature range not for all media.
FACE TO FACE
EN 558-1 Row 20
The above information is intended for guidance only and the company reserves the right to change any data herein without prior notice!