Infrastructure Products
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Infrastructure Products

Global Presence Enidine is a leading manufacturer of highly engineered critical components and customized technology solutions for growing industrial end-markets in energy infrastructure, electronics, aerospace and transportation. Building on its heritage of innovation, we partner with our customers to deliver enduring solutions to the key industries that underpin our modern way of life. Enidine provides custom seismic isolation and protection products for unique infrastructure applications worldwide. Enidine’s engineering staff and technical sales personnel are available to assist you with...

Power & Utility Sub-Stations • 6 degree of freedom Isolator Ring • Stainless Steel construction • Retrofits to most transformer bushings with little or no modification • Dynamic tested to IEEE 693 HVAC and Chiller Units • Equipment Seismic Isolation stand • Combined Isolation Bearing, Elastomeric damping and Wire Rope Isolator technologies • Protects equipment from vertical and horizontal seismic inputs • No maintenance • Chillers, HVAC, Medical Equipment Power Plants • WEAR™ Pipe Restraint/Vibration Isolator • Nuclear, fossil generation plants, refineries and structural • No oil, seals,...

We Provide Highly Engineered Customized Solutions for Every Unique Customer. i

LD Damper Series are typically recommended for use on TMD (Tuned Mass Damper) Systems or applications requiring high energy dissipation demand and tight space restrictions. *Maximum Force Reduced Due to Buckling Failure Mode. "Cylinder buckling load for cap pivot mounts determined in accordance with NFPA/T3.6.37 R1-2010, Hydraulic fluid power - Cylinders - Method for determining the buckling load." Buckling load analyzed at mid-stroke damper position. When ordering please specify the constitutive law damping coefficient C (kN-sec/m), where F = C x V Damping Configurations

*Maximum Force Reduced Due to Buckling Failure Mode. "Cylinder buckling load for cap pivot mounts determined in accordance with NFPA/T3.6.37 R1-2010, Hydraulic fluid power - Cylinders - Method for determining the buckling load." Buckling load analyzed at mid-stroke damper position. Damping Configurations When ordering please specify the constitutive law damping coefficient C (kN-sec/m), where F = C x V

2X 25 Technical Data Catalog No./Model *Maximum Force Reduced Due to Buckling Failure Mode. "Cylinder buckling load for cap pivot mounts determined in accordance with NFPA/T3.6.37 R1-2010, Hydraulic fluid power - Cylinders - Method for determining the buckling load." Buckling load analyzed at mid-stroke damper position. Damping Configurations When ordering please specify the constitutive law damping coefficient C (kN-sec/m), where F = C x V Damping Configurations

Catalog No./Model Damping Configurations When ordering please specify the constitutive law damping coefficient C (kN-sec/m), where F = C x V

Technical Data The FVD-B Series dampers are typically utilized on bridge and base isolation platforms requiring a long cycle life. This custom orifice designed damper provides the desired force versus velocity relationship symmetrically in both tension and compression directions, thermal compensation, and easy preventative maintenance inspection. Note: 1. Various stroke lengths available. Pin-Pin length at mid-stroke position can be determined by adding 2.5x the stroke length change. 2. Velocity exponent a is available from 0.2 - 1.0 3. Weight and dimensions are for reference only. Consult...

Fluid Viscous Damper FVD-B Series Technical Data Shown below are graphs depicting the damping force versus the velocity for various damping coefficients and velocity exponents. Refer to page 11 for how to specify the damping characteristics when ordering.

Technical Data The FVD-H Series dampers are typically utilized on building applications, mounted indoors, where the damper is not under constant vibration or movement. Catalog No./Model Note: 1. Various stroke lengths available. Pin-Pin length at mid-stroke position can be determined by adding 2.5x the stroke length change. 2. Velocity exponent a is available from 0.2 - 1.0 3. Weight and dimensions are for reference only. Consult ITT Enidine Inc. for detailed information before placing order. 4. Additional designs and modifications are available based on project specifications. F: Damping...

Fluid Viscous Damper FVD-H Series Technical Data Shown below are graphs depicting the damping force versus the velocity for various damping coefficients and velocity exponents. Refer to page 11 for how to specify the damping characteristics when ordering.

Damping Characteristics: F=C x Va F: Damping Force kN, C: Damping Coefficient kN(m/sec)a, V: Relative Velocity (m/sec), a: Velocity Exponent Note: 1. Custom stroke length available upon request. 2. Velocity exponent a is available in between 0.12~2.0. 3. Custom duration Ramp Up and Let Down continuous power dissipation is available upon request. 4. Weight and dimensions are for reference only. Consult ENIDINE for detailed information before placing an order. Damping Configurations

LD Series and FVD Series Ordering Information How to Order Standard Material and Surface Finish Rod End: Ball – Heat Treated Steel Housing – Heat Treated Steel, Zinc Plated Piston Rod: Chrome Plated Steel Bearing: Bonze Cylinder: Zinc plated steel Cylinder End: Nickel Plated Steel Special Materials Upon Request: Rod End; Ball – Stainless Steel, Housing – Stainless Steel/Teflon Lined (PTFE);Nickel Plated Piston Rod; Stainless Steel Cylinder; Piston Rod Protection: Bellows/Structural Sleeve Ordering Example - LD Series B - 4.0 - V - 100 Max velocity 100 cm/sec (Kine) Damping Coefficient 4.0...

Short Stroke and Long Stroke Fluid Viscous Dampers Short Stroke Dampers (FVD-H Series) High-Rise Buildings, Stadiums, City Centers and National Assets • Viscous Dampers (Short Stroke) Buildings • Forces up to 2 000 kN • Diagonal or Chevron Brace mounts • Velocity Exponent - Alpha 0.2 to linear • In line, self contained spring loaded reservoir available • Visual or electronic fluid monitoring system available