Valves Sample Clauses

Valves. 9.1 The Operators agree that valve numbers 3077, 3079 and 3081 are owned and operated by National Grid Gas. 9.2 National Grid Gas shall as soon as reasonably practicable advise IUK of, and keep IUK updated in relation to, any maintenance works which National Grid Gas proposes to carry out in relation to valve numbers 3077, 3079 and 3081. National Grid Gas shall ensure that IUK shall have access to the National Grid Gas Facilities to witness any maintenance works to be carried out in relation to the valves and to observe the operation of such valves. 9.3 If National Grid Gas proposes to make a modification to valve numbers 3077, 3079 and/or 3081, the provisions of clause 9 (Modification and inspection of Connection Facilities) shall apply.

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. 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. 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. All the valves shall be of the flanged type, made of carbon steel with stem and sealing rings of stainless steel; all valves shall be provided with back seated items. Valves nominal diameter shall always be equal to the relevant pipe diameter. Seals and seats shall be positively fixed so that they cannot become loose in service. The fixing of seals and seats by an interference fit only is not acceptable. The operating mechanism shall have means of lubrication and position indicators and, in the case of isolating valves, the means of padlocking in the open and closed positions together with approved padlocks and keys. All hand-operated valves shall close by clockwise rotation of the hand wheels which shall be marked to show the direction of closing. Valve hand wheels shall be located for safe and convenient operation with extended spindles where necessary to achieve this. All hand operated valves shall be capable of being opened and closed against their maximum working pressure fully unbalanced with a force at the hand wheel not exceeding 100 N. If necessary to achieve this, reduction gearing, ball or roller bearings shall be provided. As far as practicable, all valves for similar service shall be of the same make and type and be interchangeable. All gate valves for water and air service shall be of a type in which the operating mechanism is not subject to the working fluid. Valves other than needle type shall not be used permanently if the need for throttling is foreseen, such as to adjust flow subdivision in a system, orifice plates or needle valves with fixed stops shall be provided. Valves for water and oil service may be gate, butterfly, ball, plug or needle type, whichever is most suitable to the particular service and operating pressure. Valves for air service may be ball, plug or needle type whichever is most suited to the particular service. Non-return valves shall be of a type specifically designed to avoid impact and water hammer on closure. The closing member shall be pivoted from the valve body, not from a lid cover. Relief valves for pumps shall be of direct spring loaded, angle body type. For identification each valve of 150 mm. N.D. and over shall be provided with stainless steel identification disc on the hand wheel. On this disc the following shall be etched: • manufacturer; • catalogue number; • size inches; • rating and fluid; • trim material; • body and bonnet material. Valves below 150 mm. N.D. shall be identified with size and ANSI cl...

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. Brass or stainless-steel needle, with NPS 1/4 or NPS 1/2, ASME B1.20.1 pipe threads.

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”.

Valves. 9.1 The Operators agree that valve numbers 3077, 3079 and 3081 are owned and operated by National Grid Gas. 9.2 National Grid Gas shall as soon as reasonably practicable advise IUKInterconnector of, and keep IUKInterconnector updated in relation to, any maintenance works which National Grid Gas proposes to carry out in relation to valve numbers 3077, 3079 and 3081. National Grid Gas shall ensure that IUKInterconnector shall have access to the National Grid Gas Facilities to witness any maintenance works to be carried out in relation to the valves and to observe the operation of such valves. 9.3 If National Grid Gas proposes to make a modification to valve numbers 3077, 3079 and/or 3081, the provisions of clause 9 (Modification and inspection of Connection Facilities) shall apply. 9.4 IUKInterconnector shall have the right to access, at all reasonable times during normal business hours and upon reasonable notice, to all maintenance records and certificates kept by National Grid Gas in relation to valve numbers 3077, 3079 and 3081.