Dresser-Rand ¾" Gate Valve – CF8M, Class 150, Flanged RF, Manual, API 600

The Dresser-Rand DRZRNS2049R156 is a precision-engineered ¾" manual gate valve designed for industrial process control in corrosive and high-pressure environments. Manufactured from ASTM A351 Grade CF8M stainless steel, this valve features a rising stem design, bolted bonnet construction, and flanged raised face (RF) end connections conforming to ASME B16.5. With a pressure rating of ANSI Class 150 / PN20, it supports applications up to 285 psi (19.6 bar) at 100°F (38°C) and withstands temperatures ranging from -29°C to 425°C depending on packing and gasket materials. Compliant with API 600/API 602 design standards and tested per API 598, this valve is ideal for critical flow control where durability and corrosion resistance are required. The valve is unused and sealed in original packaging.

Specifications:

– Manufacturer: Dresser-Rand (A Siemens Business)
– Part Number: DRZRNS2049R156
– Item Number: X-461504A
– Condition: Packaged, unused (wrapped in plastic)
– Valve Type: Manual Gate Valve
– Operation: Handwheel operated (manual)
– Design Style: Rising stem, bolted bonnet
– Nominal Size: ¾ inch (DN20)
– End Connections: Flanged Raised Face (RF)
– Face-to-Face Dimension: As per ASME B16.10 for Class 150, ¾" valves
– Pressure Class: ANSI Class 150
– PN Rating: PN20 (20 bar)
– Max Pressure: 285 psi (19.6 bar) @ 100°F (38°C)
– Temperature Range: -29°C to 425°C (based on packing/gasket selection)
– Body Material: ASTM A351 Grade CF8M (316 Stainless Steel)
– Bonnet: CF8M Stainless Steel
– Disc/Wedge: CF8M or 316 Stainless Steel
– Stem: 316 Stainless Steel, rising
– Seat Rings: Integral or renewable (metallic, assumed)
– Packing: PTFE or graphite for general process applications
– Design Standards:
 – ASME B16.34 (Pressure/temperature ratings)
 – API 600 / API 602 (Gate valve design)
 – ASME B16.5 (Flanged ends)
 – API 598 (Inspection & testing)
– Visual Markings on Body:
 – “CF8M” – material designation
 – “150” – pressure class
 – “PN20” – metric pressure rating

Country of Origin: USA

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