Orange County NC Website
DocuSign Envelope ID: B94F2D40-3B3C-47A7-86C2-6F1 B4F92C62C <br /> Orange County Emergency Services Building Construction Documents <br /> 2. Minimum Static Deflection: Same as static deflection of equipment. <br /> 2.02 VIBRATION ISOLATORS <br /> A. Manufacturers: <br /> 1. Vibration Isolators: <br /> a. Kinetics Noise Control, Inc: www.kineticsnoise.com/#sle. <br /> b. Mason Industries: www.mason-ind.com/#sle. <br /> c. Vibration Eliminator Company, Inc: www.veco-nyc.com/#sle. <br /> d. The VMC Group/Amber Booth <br /> 2. Source Limitations: Furnish vibration-isolators and associated accessories produced by a <br /> single manufacturer and obtained from a single supplier. <br /> B. General Requirements: <br /> 1. Resilient Materials for Vibration Isolators: Oil, ozone, and oxidant resistant. <br /> 2. Spring Elements for Spring Isolators: <br /> a. Color code or otherwise identify springs to indicate load capacity. <br /> b. Lateral Stability: Minimum lateral stiffness to vertical stiffness ratio of 0.8. <br /> c. Designed to operate in the linear portion of their load versus deflection curve over <br /> deflection range of not less than 50 percent above specified deflection. <br /> d. Designed to provide additional travel to solid of not less than 50 percent of rated <br /> deflection at rated load. <br /> e. Selected to provide designed deflection of not less than 75 percent of specified <br /> deflection. <br /> f. Selected to function without undue stress or overloading. <br /> C. Vibration Isolators for Non-Seismic Applications: <br /> 1. Resilient Material Isolator Pads: <br /> a. Description: Single or multiple layer pads utilizing elastomeric (e.g. neoprene, rubber) <br /> isolator material. <br /> b. Pad Thickness: As required for specified minimum static deflection; minimum 0.25 inch <br /> thickness. <br /> c. Multiple Layer Pads: Provide bonded, galvanized sheet metal separation plate between <br /> each layer. <br /> 2. Resilient Material Isolator Mounts, Non-Seismic: <br /> a. Description: Mounting assemblies for bolting equipment to supporting structure utilizing <br /> elastomeric (e.g. neoprene, rubber) isolator material; fail-safe type. <br /> 3. Open (Unhoused) Spring Isolators: <br /> a. Description: Isolator assembly consisting of single or multiple free-standing, laterally <br /> stable steel spring(s)without a housing. <br /> b. Bottom Load Plate: Non-skid molded elastomeric isolator material or steel with non-skid <br /> elastomeric isolator pad with provisions for bolting to supporting structure as required. <br /> c. Furnished with integral leveling device for positioning and securing supported equipment. <br /> 4. Housed Spring Isolators: <br /> a. Description: Isolator assembly consisting of single or multiple free-standing, laterally <br /> stable steel spring(s)within a metal housing. <br /> b. Furnished with integral elastomeric snubbing elements, adjustable type, for limiting <br /> equipment movement and preventing metal-to-metal contact between housing elements. <br /> c. Bottom Load Plate: Steel with non-skid elastomeric isolator pad with provisions for <br /> bolting to supporting structure as required. <br /> d. Furnished with integral leveling device for positioning and securing supported equipment. <br /> 5. Restrained Spring Isolators, Non-Seismic: <br /> a. Description: Isolator assembly consisting of single or multiple free-standing, laterally <br /> stable steel spring(s)within a metal housing designed to prevent movement of supported <br /> equipment above an adjustable vertical limit stop. <br /> b. Bottom Load Plate: Steel with non-skid elastomeric isolator pad with provisions for <br /> bolting to supporting structure as required. <br /> c. Furnished with integral leveling device for positioning and securing supported equipment. <br /> d. Provides constant free and operating height. <br /> 6. Resilient Material Isolator Hangers, Non-Seismic: <br /> PDC Project 18102 VIBRATION AND SEISMIC 23 05 48- 2 <br /> 12/17/2018 CONTROLS FOR HVAC <br />