01 Mar Special Resilient Seated
Special Resilient Seated Butterfly Valve
Special Resilient Seated
DESCRIPTION
General
- Sizes: 1.5” -72.0” (40mm-1800mm)
- Temperature Range: -4F-400F (-20C – 204C)
- Pressure Rating: 90 psig, 150 psig, 230 psig, 250 psig
Features
- Body Styles: Wafer, Lug and Double Flanged
- Body Materials: Cast Iron, Ductile Iron, Nylon 11 Coated Cast Iron or Ductile Iron, Carbon Steel, 304 and 316SS
- Body Coating: Standard Two Part Polyester Epoxy, Optional Nylon 11
- Disc: Nylon 11 Coated Ductile Iron, 304SS, 316SS, Aluminum Bronze, Nylon 11 Coated 316SS
- Seats: EPDM(Food Grade), Buna N, Viton, White EPT(Food Grade), Hypalon, Silicone, Neoprene
- Bearings: Lower Stem Bronze or (opt)SS, Upper(above seat)SS, Top Delrin
- Stems: 410SS, 304SS, 316SS, 17-4 Ph SS
- Mounting:ISO-5211 Stem(small square) and Mounting Pad
- Drive: One Piece Shaft to 14”, Shaft Spline to Disc Attachment(VF7A),Split Shaft > 0” with Spline Drive(VF7A)
- Stem Retention: 1.5” thru 12.0” has Q Pin Slot in Top Pad which Retains SS Through Pin, 14.0” thru 48” and All Stainless Steel Valves have Removable Plate Retaining the SS Through Pin
- Working Pressures: 87 psig, 150 psig, 230 psig Bi-Directional Bubble Tight Shutoff.
- 5”-12.0” Lug Rated 200 psig Dead End Shutoff, 14.0” and Above Lug Rated 150 psig Dead End Shutoff, Test Reports Available
- Private Label Valves Available
Centric Butterfly Valves Specifications
- End Connections: 125/150 ANSI, Wafer, Lug, Flanged
- Wall Thickness: ASME B16.34, AWWA C504
- Mounting: ISO-5211(Fits all ISO-5211 Operators)
- Design: ISO-5208,AWWA C504,ASME B16.34
- Face to Face: API-609,ISO-5752, AWWA C504(54.0”-72.0”)
- Marking: MSS-SP-25
- EX Certificate: ATEX 94/9/EG Group II Category 2 GD
- ABS Certificate: ABS Steel Vessel Rules 1-1-7/7, 4-6-2/5.11
Applications
- HVAC
- Food Service
- Petrochemical
- OEM
- Fire Control
- Seawater
- Flue Gas
- Chemical
Special resilient seated butterfly valves are engineered for dependable sealing performance and controlled flow regulation across a wide range of industrial systems. Their design supports smooth operation, stable torque behavior, and consistent shutoff characteristics, making them suitable for applications where reliability and long service life are priorities.
Sealing Behavior and Contact Performance
A resilient seated butterfly valve relies on uniform contact between the disc and seat to maintain a dependable seal. The special seat profile helps reduce wear during cycling and supports consistent closure under varying pressure conditions. This controlled contact behavior helps maintain tight shutoff and supports predictable performance over extended use.
The valve’s sealing characteristics also help reduce leakage risk in systems where pressure changes occur frequently.
Flow Characteristics and System Control
The disc geometry supports smooth flow transitions and helps maintain stable control across the valve’s operating range. This behavior is valuable in systems where gradual adjustments are needed to maintain process stability. The valve’s ability to respond predictably to actuator movement supports efficient flow regulation and helps reduce cycling irregularities.
These valves integrate well with valve actuators and automation components used in butterfly valve assemblies.
Installation and System Alignment
Proper alignment during installation helps maintain consistent sealing behavior and smooth disc movement. The valve’s mounting layout supports straightforward integration with a wide range of piping systems. Clear access to connection points helps reduce setup time and supports efficient commissioning.
Installation considerations also include torque requirements, actuator compatibility, and system orientation.
Product Highlights
- Stable sealing behavior under varying pressure conditions
- Smooth flow transitions for controlled system operation
- Suitable for environments with moisture and airborne particles
- Straightforward installation and alignment across multiple systems
Frequently Asked Questions
What Is a Special Resilient Seated Butterfly Valve?
It is a butterfly valve designed with a resilient seat profile that supports dependable sealing and controlled flow regulation across industrial systems.
How Does the Resilient Seat Improve Performance?
The seat maintains uniform contact with the disc, helping reduce wear and supporting consistent shutoff under changing pressure conditions.
Where Are These Valves Commonly Used?
They are used in water treatment, HVAC systems, manufacturing operations, and other environments where stable flow control is required.
What Installation Factors Should Be Considered?
Proper alignment, torque requirements, actuator compatibility, and system orientation help support reliable operation.
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