Valves Sample Clauses

Valves. A. Valves shall be installed where shown on plans and elsewhere as necessary for the proper operation or balancing of the systems. B. At completion, this contractor shall install stamped brass tag on each valve held on with brass drain (except on fan-coil unit valves) with numbers. This contractor is to make up schedule with number of each valve. Schedule to describe use of each valve. One copy of schedule to be framed under glass and hung in boiler room. Two more copies are to be supplied to the Engineer. C. Extreme care must be used in locating fin tube radiation valves and fittings in order that they shall be installed so as to be readily accessible. D. Install on each coil a key type compression air valve.

Valves. A. Gate valves, globe valves, check valves and drawoff valves shall be Powell, Lunkenheimer, Crane, or approved equal. Figure numbers herein are ▇▇▇▇▇▇ numbers. 1. Gate valves 2-1/2" and larger shall be Figure 1793, 125#, I.B.B.M., solid wedge, O S & Y, rising spindle, flanged end. 2. Globe valves 2-1/2" and larger shall be Figure 241, 125#, I.B.B.M., O S & Y with regrind - renew beveled bronze disc and seat ring, flanged end. 3. Check valves 2-1/2" and larger shall be Figure 559, 125#, I.B.B.M., horizontal swing type, with regrind-renew bronze seat ring and disc, flanged end. 4. Check valves 2" and smaller shall be Figure 578, 125# bronze, horizontal swing type with regrinding bronze seat and disc, screwed end. 5. Draw-off valves shall be Figure 503H, bronze, screwed inlet, hose outlet. B. Valves 2" and smaller shall be ball valves. Ball valves shall be ▇▇▇▇▇▇▇ Figure 32-A, Crane, ▇▇▇▇▇▇▇▇ or approved equal, bronze ball valves with bronze ball, Teflon seats, brass stem and cadmium plated steel handle with plastic grips. C. Pressure-reducing Valves 1. ▇▇▇▇ and ▇▇▇▇▇▇▇, ▇▇▇▇▇▇▇▇▇, Taco or equal. 2. Diaphragm operated pressure-reducing valve with low inlet pressure check valve and inlet strainer. The strainer shall be easily removable without system shutdown. The valve seat, strainer and stem shall be removable and of non-corrosive material. The body shall be brass. The valve shall be full line sized as shown on the Drawings. Pressure setting to be minimum system operating pressure. D. Multi-Purpose Pump Discharge Valves (furnish at the discharge of all hydronic heating pumps) 1. ▇▇▇▇ and Gossett, ▇▇▇▇▇▇▇▇▇, Taco or Equal 2. Valves to be designed to permit tight system shutoff and then return to original balance point after shutdown, to perform as a spring-loaded non-slam check valve and to perform as a plug-type flow control valve. Valve to be able to be repacked under full pressure. Valve to be suitable for use in heating systems with working temperatures up to 230 ºF. 3. Valve to have flanged, ductile-iron body, bronze disc and seat, stainless steel stem and spring. Valve body to be furnished with two 1/4" plugged drain tappings. 4. Valves shall be equipped with ▇▇▇▇▇▇▇▇ valve metering connections to facilitate differential pressure readings across the valve orifice for accurate system balancing. 5. Each valve to be furnished with a pre-formed removable PVC insulation jacket with high density fiberglass insulation suitable for temperatures up to 230 ºF co...

Valves. Valves shall be readily accessible from grade, platform, fixed walkway, or fixed ladder to the maximum extent possible. Sufficient clearance shall be allowed around the valve to accommodate removal of the actuator/plug and stem assembly for maintenance.

Valves. Valves shall be brass with stainless steel ball for 2 inches and smaller and lug type butterfly for larger piping for isolation service and plug type valves for throttling service.

Valves. Sluice valves 80mm diameter and above diameter shall be cast iron double flanged solid wedge, outside screw non rising stem, yoke type bonnet and two piece gland construction. The valves shall have renewable screwed body seat rings. Flanges shall have raised faces and serrated face finish and shall conform to IS 780-1984. Check valves shall be cast iron double flanged conforming to IS: 5312-1975 with cast iron steel body 13% chrome steel disc, hang pin and body seat ring.

Valves. Valve pressure classes, sizes, types, body materials, and end preparations will generally be as described herein. Special features and special application valves will be utilized, where required. Valves specified to have flanged, socket welded, or screwed connections will have ends prepared in accordance with the applicable ANSI standards. Steel flanges will be raised-face type, unless otherwise required. Cast iron and bronze flanges will be flat-faced type. Butt welding ends will be prepared in accordance with Butt Weld End Preparation and Piping Fit-up. -------------------------------------------------------------------------------- Proprietary Information Page 29 AES IRONWOOD CONTRACT FINAL ISSUE - OCTOBER 30, 1998 -------------------------------------------------------------------------------- 2x1 501G REFERENCE PLANT APPLICATION HANDBOOK -------------------------------------------------------------------------------- MECHANICAL ENGINEERING DESIGN CRITERIA -------------------------------------------------------------------------------- Steel body gate, globe, angle, and check valves will be designed and constructed in accordance with ANSI B16.34, as applicable. Valve bodies and bonnets will be designed to support the valve operators (handwheel, gear, or motor) with the valve in any position without external support.

Valves. Valves shall be installed to meet valve manufacture’s recommendation. For example, valve with vertical actuator shall not be installed with actuator in any other way but vertical. Nameplates on safety and relief valves shall indicate manufacturer’s name, model number, size, set pressure, capacity, orifice size, materials, and approving authority stamp symbol. Each safety and relief valve shall be supplied with a test certificate issued by the approving authorities and shall be subject to the Purchaser’s approval. All valves and valve actuators shall be accessible for operation and maintenance. Block valves shall be provided for all equipment, except the air-side of rotor air coolers. Valving and other accessories shall be positioned and physically spaced relative to other equipment so as to allow convenient access for operation and maintenance. Crowding of piping, components, and accessories shall be avoided. Valves shall be arranged for convenient operation from an appropriate floor level or platform and shall be provided with extension spindles or gearing, as required. Deviations from this design criterion require Purchaser approval before design finalization. Where extension spindles are fitted, all the thrust when opening or closing the valves shall be taken directly on the valve body and all pedestals shall be mounted directly on floor girders or other stationary members. Chain operators are not acceptable. Valves, valve handwheels, and/or valve actuators shall not infringe on Purchaser-reserved spaces or walkways. Valve pedestals shall be of approved design and be fitted with an indicator to show whether the valve is open or closed. All valves shall be arranged to close when the handwheel is rotated in a clockwise direction when looking at the handwheel from the operating position. The direction of rotation to close the valve shall be clearly marked on the face of each handwheel. All steam and water valves operating at less than atmospheric pressure shall have inverted Teflon stem packing. Hand-actuated valves shall be operable by one person. Gear operators shall be provided on manual valves when the rim pull required to open or close the valve is greater than 100 pounds. Valve materials shall be suitable for operation at the maximum working pressure and temperature of the piping to which they are connected. Steel valves shall have cast or forged steel spindles. Seats and faces shall be of low friction, wear-resistant materials. Valves in throttling ...

Valves. All valves for domestic water to be 125 PSI test all bronze wedge gate valves or line size quarter-turn installed in the proper orientation ball valves as manufactured by either NIBCO, Crane or Wafts. Valves for gas piping system shall be all bronze ball valves with threaded or welded ends as manufactured by Crane or equivalent. All valves shall be accessible for ease of operations.

Valves. Contractor is responsible for verifying all new water main, hydrant and branch valves (unless valves are required to be closed) are in the open position prior to pressure testing and chlorination. Contractor is responsible for verifying all new water main, hydrant and branch valves are in the open positions following the final wet connection. All City of Milwaukee Valves are open Right “Clockwise”.