Group: Marsh Bellofram
Catalog excerpts
BelGAS Standard Needle Valves offer four choices in 316 stainless steel as well as one piece forged carbon plated steel; soft seat and hard seat, angle and globe styles. The Mini valve offers 2 choices in 316 stainless steel and bar stock plated carbon steel; soft seat and hard seat globe style, T-bar and thumb wheel operation. These valves are suited for instrumentation, process plant use, oil and gas production and general applications where isolation and positive shutoff is a requirement. For applications requiring a positive shutoff, the soft seat style with Delrin® seat insert offers a...
Open the catalog to page 2BelGAS Metal-to-Metal Seat Needle Valves 316 Stainless Steel and Alloy Steel These 316 Stainless steel valves are ideally suited for applications when caustic and corrosive material are being used. Pressure ratings to 10,000 psi (70,000 kPa). ”T” bar handle Teflon* packing Roll-formed stem threads Precision-machined stem Bonnet locking pin prevents accidental removal Below stem thread packing gland Hardened and ground self centering, non-rotating tip Metal-to-metal seat Pressure rating, 10,000 psi (70,000 kPa) ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ Specifications and Description Body and Bonnet Material ASTM...
Open the catalog to page 3BelGAS Soft-Seat Needle Valves 316 Stainless Steel and Alloy Steel For applications where bubble-tight shutoff of liquids or gases are required. Pressure rating to 6,000 psi (42,000 kPa). These valves are designed with a replaceable Delrin** soft seat. ”T” bar handle Teflon* packing Roll-formed stem threads Precision-machined stem Bonnet locking pin prevents accidental removal Below stem thread packing gland Hardened and ground self-centering, non-rotating tip Soft-seat Bubble-tight shutoff of liquids or gases to 6,000 psi (42,000 kPa) ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ Body and Bonnet Material ASTM A182F...
Open the catalog to page 4BelGAS Block/Bleed Terminal Needle 3V16a lSvtaeinsless Steel and Alloy Steel Ideally used to isolate gauge legs and gauge reading, allow sampling to take place without loss of material and provide extra pressure ports with isolation capabilities and can be used only when needed. ”T” bar handle Teflon* packing Roll-formed stem threads Precision-machined stem Below stem thread packing gland Hardened and ground 316 stainless steel, self-centering, non-rotating tip Carbon steel or 316 SST port plug Pressure rating, 10,000 psi (70,000 kPa) ¢ ¢ ¢ ¢ ¢ ¢ ¢ ¢ Body and Bonnet Material ASTM A182F 316...
Open the catalog to page 6BelGAS Miniature Needle Valves 316 Stainless Steel and Alloy Steel Miniature size for applications where space is limited. Ideal for test stand and general equipment. ”T” bar handle or thumb wheel Roll-formed stem threads. Precision-machined stem. Teflon* packing Bonnet locking pin prevents accidental removal Metal-to-metal and soft seat Pressure rating, 6,000 psi (42,000 kPa) ¢ ¢ ¢ ¢ ¢ ¢ ¢ Body and Bonnet Material ASTM A479 316 stainless steel or ASTM A108 barstock steel, plated Stem Material 316 stainless steel Bonnet Cap (Protective Cover) Low density polyethylene, red....
Open the catalog to page 7Flow Coefficient (Cv) Method of Calculating Flow: The flow coefficient “Cv” of a valve is the flow rate of water (gallons/ minute) through a fully opened valve, with a pressure drop of 1 psi across the valve. To find the flow of liquid through a valve from the flow coefficient (Cv), use the following formula: 8010 Ohio River Blvd., Newell, WV 26050 800-727-5646 • Fax 304-387-4417 www.marshbellofram.com P G P g P less than 1.0 For noncritical flow To find the flow of gas through a valve, use the following formula: IMPORTANT: Flow coefficients are dependent on both the size of the valve and...
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