Keystone Figure 637 Slurry Control Valve
The Keystone™ Figure 637 Slurry Control Valve by Emerson provides precise, durable flow control in abrasive slurry applications, offering superior resistance to wear and clogging
The Keystone Figure 637 Slurry Control Valve, engineered by Emerson, is a heavy-duty control solution designed for high-performance throttling and on/off service in abrasive and corrosive slurry applications. Built for reliability and long service life, this valve offers exceptional resistance to erosion, clogging, and wear, making it ideal for demanding industries such as mining, power generation, pulp and paper, and chemical processing. The Figure 637 features a robust full-bore, eccentric plug design that ensures tight shutoff and accurate flow control, even under severe service conditions. Its replaceable wear sleeve and hardened trim components minimize downtime and extend operating life, while the streamlined flow path reduces turbulence and energy loss. Designed for easy maintenance and high efficiency, the Keystone 637 delivers precise control over slurries, viscous fluids, and other challenging media—ensuring consistent performance where standard valves often fail.
Feature of Keystone Figure 637 Slurry Control Valve
- Robust construction.
- High wear resistant materials.
- Bi-directional slurry control valve.
- Swing through disc for minimum leakage.
- Hardened tool steel disc end spacers to protect the shaft from erosion.
- Extensive size range available.
- Multiple viton stem seals.
- Full repairability with replaceable internals for significantly extended valve life.
- Adjustable PTFE gland packing.
- Standardised mounting and drive adaptor connection allowing direct mounting of Keystone actuators and also allows for actuator removal while in-line.
- Manufactured under quality system ISO 9001:2008. Certificate No Mel 0400133.
- Available with PED approval. Cert No: 0038/PED/MUM/0710020/1.
Technical Specification of Keystone Figure 637 Slurry Control Valve
- Material
- Carbon Steel
- Pressure Class
- ASME
- Valve Size
- NPS 6 / DN 150, NPS 10 / DN 250, NPS 12 / DN 300, NPS 14 / DN 350, NPS 16 / DN 400, NPS 18 / DN 450, NPS 2 / DN 50, NPS 20 / DN 500, NPS 2-1/2 / DN 65, NPS 24 / DN 600, NPS 3 / DN 80, NPS 4 / DN 100, NPS 8 / DN 200