2930 MAPLE ST KAISER PERMANENTE 2025-05-12

KAISER PERMANENTE ASC & Clinic (HUB) Everett, WA Site Prep #1 Electrical Service March 18, 2020 Proiect No. 19.05002.00 3. Valves for Chilled -Water and Condenser -Water: Internal valve trim shall be bronze except that valve stems may be type 316 stainless steel. Valves larger than 4 inches shall be butterfly. 4. Valves for Hot -Water Service Below 250 degrees F: Internal trim (including seats, seat rings, modulating plugs, and springs) of valves controlling water hotter than 210 degrees F shall be Type 316 stainless steel. Internal trim for valves controlling water 210 degrees F or less shall be brass or bronze. Nonmetallic parts of hot-water control valves shall be suitable for a minimum continuous operating temperature of 250 degrees F or 50 degrees F above the system design temperature, whichever is higher. 5. Valves for Steam Service: Bodies for valves 4 inches and larger shall be iron. Internal valve trim shall be Type 316 stainless steel. Steam valves shall have linear characteristics. C. Characterized Control Ball Valves (1/2" — 2"): Valves 1/2 inch through 2 inches shall be nickel plated forged brass body. NPT screw type with stainless steel ball, stem and fiberglass reinforced Telfon seats and seals. The valves shall have an ISO type 4 bolt flange with non-metallic thermal isolation adapter to provide stable mechanical connection. Flow type for modulating two-way valves shall be equal percentage. Three- way valves shall have equal percentage control port. The stem packing shall consist of 2 lubricated 0-rings designed for on -off or modulating service requiring no maintenance. D. Pressure Independent Flow Control Valves: Control valve shall be pressure independent modulating type configured to maintain a constant differential pressure across the control surfaces. Cast iron, steel or bronze rated for 150-psig minimum working pressures. Valve internal components shall be stainless steel, steel, Teflon, brass, or bronze. 0 to100-percent design flow modulation with no more than ±5-percent variation. Range - ability shall be 100:1 minimum. Valve flow characteristics shall be able to be changed without removing valve from piping system. Complete with Pressure/temperature ports to measure inlet/outlet/internal pressures and calibrated performance tag. 1. Manufacturers: a. Flow Controls Industries E. Control Panels: Panels shall be UL listed, NEMA type rated for application and location, surface or flush mounted panel as indicated with key locked door with continuous hinge and standard baked enamel finish. F. Differential Pressure Switches: 1. Filter Status: Diaphragm operated which actuate a SPDT snap action switch. A field adjustable pressure set point with a range suitable for air flow status applications. The switch voltage and current rating shall be double the load requirements. Provide sensing tubes connected to tips with multiple holes and bulkhead fittings specifically designed for air flow sensing. Manufacturer: Dwyer or approved equal. 2. Air System - Limit Differential Pressure Switch: Pressure switches shall incorporate gauge and switch point indicator(s) for continuous indication of applied pressure and switch settings. Diaphragm operated with switching accomplished by photocell controlled relays. Set point adjustment controlled by knobs. Complete with set point latching circuit and external push-button switch for manual reset. Range [0-8] inches water gauge. Manufacturer: Dwyer or approved equal. 3. Water System Differential Pressure Switch: Form-C contacts, automatic reset, screw -adjustable trip point, all components non -corrosive; wetted parts shall consist of a Buna-N diaphragm with O-ring seal; complete with NEMA rated enclosure suitable for application. Select operating range to match function. Provide instrument gage valve for each input. INSTRUMENTATION AND CONTROLS FOR HVAC 23 09 00 - 7