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Valve & Pump


Standard specifications and technical requirements for various valves and pumps.

MSS SP 67 Flanged Butterfly Valves | Cast & Ductile Iron

Technical Drawing, Design Features & Flange Standards The MSS SP 67 flanged butterfly valve has two integral flanges cast on the body that is either made of ductile iron or cast grey iron. The two integrally cast end flanges can match the standard piping flanges with internal room between the flanges for bolting (Thus, it is also known as “double-flanged” …

MSS SP 67 Lug Butterfly Valve | Cast & Ductile Iron

Technical Drawing & Design Features The MSS SP 67 lug type butterfly valve, either made of cast iron or ductile iron, has one integral flange with an identical drilling pattern to the piping flanges. Each hole is tapped from opposite direction, meeting in the center of the hole. This arrangement allows the body to be placed between two flanges. A …

MSS SP 67 Wafer Butterfly Valve | Cast Iron, Ductile Iron

Technical Drawing, Function & Advantages The MSS SP 67 cast iron wafer butterfly valve, either furnished with ductile iron or grey iron body, has a flangeless flat body that has a minimum face-to-face dimension, which is equal to twice the required wall thickness plus the width of the packing box. When used in piping connection, the valve will be clamped …

AWWA C509 Resilient Seated Gate Valves

Technical Drawing Design Characteristics & Material Selection Released by American Water Works Association, AWWA C509 is the standard for resilient-seated gate valves for water supply service. The terminology “resilient-seated” is sometimes also expressed as “resilient wedge”. It indicates that the wedge of the gate valve, which has plain one-piece hollow construction, shall be encapsulated/ coated with a layer of rubbers …

Pressure-Temperature Ratings for Cast Iron Gate Valves

Metal seated cast iron gate valves (American standard) may be made of gray iron or ductile iron in accordance with MSS SP 70 and MSS SP 128, respectively. The gray iron shall be in accordance with ASTM A126, while the ductile iron shall be in accordance with ASTM A395 or ASTM A536. They are generally used for various non-shock applications …

MSS SP 128 | Ductile Iron Gate Valves

Technical Drawings, Design Features & Materials Design features of MSS SP 128 ductile iron gate valves: RF flanged end connection; solid wedge (one-piece); OS&Y rising stem or non-rising stem; bolted bonnet; handwheel operated; metal seated (copper alloy seating surfaces); Class 125 and Class 250 gate valve bodies and bonnets shall be either ASTM A536 or ASTM A395 ductile iron and …

MSS SP 70 | ASTM A126 Gr.B | Gray Iron Gate Valves

Technical Drawings, Design Characteristics & Materials Cast iron gate valves designed in accordance with MSS SP 70 shall be furnished with ASTM A126 Grade B gray iron bodies and bonnets. Two classes are available: Class 125 and Class 250. We supply Class 125 in both rising stem and non-rising stem styles; Class 250 is only available in rising-stem style. Although …

Cast Iron Gate Valves: Gray Iron & Ductile Iron

Functions & Applications The cast iron gate valve, furnished with cast gray iron or ductile iron body and bonnet, is a linear-motion manual valve that uses a typically flat closure element perpendicular to the process flow, which slides into the flow stream to provide shutoff. It is designed primarily for on-off services as a block valve, where the valve is …

Butterfly Valves

What is the butterfly valve? Butterfly valves are valves in which the disc rorates around the valve stem to open and close. They use the disc as the closure element, the rotation angle is between 0° and 90°. The butterfly valve reaches maximum opening when disc is rotated to 90°. Butterfly valve is often used in the furnace, gas, natural …

Globe Valves

What is the globe valve? Globe valves are valves in which the shut-off piece moves along the center line of the seat. Globe valve is the most widely used type of valve, this type of valve is very suitable for cutting or adjusting and throttling, but also suitable for medium and low pressure. Design Standards & Scope of Application Globe …

Gate Valves

What is the gate valve? Gate valve is a linear-motion valve characterized by a body with a longer face-to-face that acommodates flow passages sufficiently long enough to ensure smooth flow through the valve without any sharp turns. Gate valve with the gate as opening and closing parts, the movement direction of the gate is perpendicular to the flow direction, gate …

Ball Valves

What is the ball valve? Ball valve is a kind of plug valve with a ball-shaped closure element. It can control the flow through it by using a hollow,  perforated and pivoting ball. It is open when the ball’s hole is in line with the flow and closed when it is pivoted 90-degrees by the valve handle. The handle lies …

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