Description
Saunders Type KB Straight-Through Diaphragm Valve (DN15–DN350)
Product Overview
The Saunders Type KB straight-through diaphragm valve is designed for reliable, low-maintenance performance in demanding industrial applications. Its simple yet robust construction ensures efficient flow control, particularly in abrasive, corrosive, and slurry environments.
Featuring a straight-through full bore design, the valve allows for smooth, unrestricted flow with minimal pressure loss. The replaceable diaphragm and heavy-duty sleeve system reduce downtime and maintenance costs, making it a cost-effective solution for long-term operation.
Key Features
- Straight-through design for minimal pressure drop
- Low-maintenance with replaceable diaphragm
- Suitable for abrasive, corrosive, and viscous media
- Wide range of materials and lining options available
- Long service life with reliable performance
- Simple, safe, and easy to operate
- Cost-effective solution for industrial applications
Sizes & Connections
- DN15 – DN50 – Screwed or Flanged
- DN65 – DN350 – Flanged
- Larger sizes available on request
Technical Specifications
Valve Type:
Straight-Through Diaphragm Valve
Pressure Rating:
- DN15 – DN100: Up to 10 bar
- DN125 – DN150: Up to 6 bar
- DN200 – DN300: Up to 3.5 bar
- DN350: Up to 1.5 – 1.75 bar
Operating Temperature:
- -20°C to +175°C (depending on diaphragm and lining material)
Body Material:
- Cast Iron
- Ductile Iron (SG Iron)
Lining Options:
- Natural Rubber
- Butyl / EPDM
- Neoprene / Nitrile
- Ebonite (Hard Rubber)
- Glass Lined
- Halar (ECTFE)
- Epoxy Coated
Diaphragm Materials:
- EPDM
- Nitrile
- Butyl
- Hypalon
- Fluoroelastomer
Actuation Options
- Manual (Handwheel)
- Pneumatic Actuated
- Spring Return
- Double Acting
Applications
- Mining and slurry handling
- Water and wastewater treatment
- Chemical processing
- Power generation
- General industrial use




