DIVISION 23 HEATING, VENTILATING, AND AIR CONDITIONING (HVAC) SECTION 23 05 23 PART 1 GENERAL 1.01 DESCRIPTION A. Provide valves for the following systems: 1. Heating Hot Water 2. Chilled Water 3. Condenser Water 4. Glycol Solutions 5. Low Pressure Steam and Condensate 1.02 QUALITY ASSURANCE A. Standards: American National Standards Institute (ANSI), American Society of Mechanical Engineers, (ASME), Manufacturer's Standardization Society of the Valve and Fittings Industry (MSS). B. Valves shall be rated at least 20% over the maximum system working pressure. PART 2 PRODUCTS 2.01 HVAC systems with operating temperatures up to 200 degrees F. For heating hot water, chilled water, condenser water glycol solutions, heat recovery and make-up water. A. Valve Function Start/Stop Flow 2 Piece Standard Port Ball (600 WOG) Body Material Cast Bronze (ASTM B 584) Seal Material Reinforced PTFE Ball Material Material Lever 13-HC1-033 23 05 23-1
B. Valve Function Start/Stop Flow Butterfly Minimum ANSI Class 125/150 Body Material Cast Iron Seat Material EPDM Full Lug Flange Material Aluminum Bronze Shaft Material 316 or 17-4 PH Stainless Steel Lever with Memory Stop, Gear for 6" and Larger Other Valves and Seats shall be rated for 150 psi shutoff during dead-end service, without down stream piping or flange. C. Valve Function Regulate Flow (200 WOG) Rising Hand Wheel D. Valve Function Regulate Flow (200 WOG) Solid Cast Bronze (ASTM B 62) Seat Ring Cast Bronze (ASTM B 62) Hand Wheel E. Valve Function Prevent Back flow Check - Horizontal Swing or Vertical Lift (200 WOG) Cap 23 05 23-2 13-HC1-033
F. Valve Function Prevent Back Flow Swing check (200 WOG) Cast Iron (ASTM A 126) Seat Ring Bronze (ASTM B 62) Cap G. Valve Function Prevent Back Flow Body Silent Check Valve Body Material Cast Iron (ASTM A 48, Class 35) Cast Iron with Bronze Face Rings Seat Bronze (ASTM B584) Plug Bronze (ASTM B584) Spring Stainless Steel T304 (ASTM A 276) H. Acceptable manufacturers are: NIBCO, Milwaukee, Crane, DeZurik, Watts, Keystone, Mueller, or Stockham. 2.02 HVAC Steam Systems with operating pressure up to 15 psig and temperatures up to 250 degrees F. Including low pressure steam, condensate, and feed water. A. Valve Function Start/Stop Flow Gate Solid Wedge - Bronze (ANSI B 62) Union Non-Rising Malleable Iron Hand Wheel B. Valve Function Start/Stop Flow 2 Piece Standard Port Ball Body Material Bronze Seal Material Reinforced PTFE Ball Material Material Lever C. Valve Function Start/Stop Flow 13-HC1-033 23 05 23-3
Gate Solid Wedge - Cast Iron (ASTM A 126) Wedge and Seat Rings Cast Bronze ( ASTM B 62) O.S. & Y Cast Iron Hand Wheel D. Valve Function Regulate Flow 420 Stainless Steel (ASTM A 276) Seat Ring 420 Stainless Steel (ASTM A 276) or Union Rising Malleable Iron Hand Wheel E. Valve Function Regulate Flow Seat Ring Bronze (ASTM B 62) O.S. & Y Lever, Gear for 6" & larger F. Valve Function Prevent Back Flow Check - Horizontal Swing Teflon or 23 05 23-4 13-HC1-033
G. Valve Function Prevent Back Flow Check - Horizontal Swing Cast Iron with Bronze Face Rings H. Acceptable are: NIBCO, Milwaukee, Watts, Stockham or Crane. PART 3 EXECUTION 3.01 INSTALLATION OF VALVES A. Valves shall be installed as called for in the Specifications, at locations shown on the Drawings, and as required to facilitate the maintenance, operation and servicing of all HVAC piping systems. B. Valves shall be installed at service connections to equipment, at branch take-off lines, at mains at low points for draining, and at high points for venting. C. Valves shall be installed with the hand wheel at or above the centerline of the pipe. D. Valves installed in copper lines shall be provided with screwed or flanged adapters with a union installed downstream and within 12 inches of the valve. E. Valves shall be installed in accessible locations. Provide chain wheel and chain for all valves located with the lowest portion of its handwheel or lever at 10 feet or more above the finished floor. F. Install shutoff and gate drain valves in branches and risers. END OF SECTION 13-HC1-033 23 05 23-5