1900 Standard Series - Allied Valve Inc

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Conversion TableAll the USCS values are converted toMetric values using the following conversion factors:USCS Unit Conversion Factor Metric Unitin. 25.4 mmlb. 0.4535924 kgin 2 6.4516 cm 2ft 3 /min 0.2831685 m 3 /mingal/min 3.785412 L/minlb/hr 0.4535924 kg/hrpsig 0.6894757 bargft lb 1.3558181 Nm°F 5/9 (°F-32) °C1900.2 | Dresser Consolidated ®
The Consolidated type 1900 Safety Relief Valve is designedto be highly adaptable in order to meet numerous applicationrequirements.Features & Benefits• Heavy duty construction provides low cost of ownership by providing longervalve service life, lower maintenance costs and easy valve conversions.• Design flexibility and parts interchangeability accommodates processchanges through easy conversion to a variety of designs.• An optional bellows design is a cost effective solution which compensatesfor the effects of variable back pressure.• A soft seat design allows to the valve to remain leak free at 95% of setpressure over 100 psig (6.89 barg) with a backup metal seat for additionalsafety.API Standard 526-2002Pressure Relief Valves specified within this catalog comply with API Standard 526Fifth edition, 2002.When required for replacement, Consolidated 1900 valves are also available withconnections and dimensions in accordance with supplanted API Standard Thirdedition 1984 and prior editions.Product variations covered in subsequent pages are noted below:INLET SIZES1" (25.4 mm) through 12" (304.8 mm)INLET RATINGS ANSI Class 150 through 2500OUTLET SIZES 2" (50.8 mm) through16" (406.4 mm)OUTLET RATINGS ANSI Class 150 and 300ORIFICE SIZES Seventeen sizes: D through WTEMPERATURE RANGE -450°F (-267.8°C) to 1500°F (815.6°C)MATERIALSCast carbon steel body with stainlesssteel trim is standard.CERTIFICATIONASME B & PVC, Section II - Material (Applicable as required byASME B & PVC, Section III or VIII)ASME B & PVC, Section III, class 2 and 3 (Gas, Vapor, and LiquidService)ASME B & PVC, Section VIII (Gas, Vapor, and Liquid Service)ASME B16.34 and ASME B16.5API 520, 526 and 527ISO 4126NACE MR0103-2003 Standard Material RequirementsProductVariation1900 Conventional1900-30 Bellows ConstructionDescription1900-35 Balanced Bellows with Auxiliary Balancing Piston1900HA1900SG1900DA1900LA1900DA - LA1900TDSpecial Materials for Hydrofluoric Acid ServiceSour Gas TrimSoft SeatLiquid Trim with Metallic SeatsLiquid Trim with Soft SeatsSpecial Trim for Steam & Organic Heat Transfer Media1900 Series Safety Relief Valve | 1900.3
Page 1: Pressure Relief Valves1900 Standard
Page 6 and 7: Scope of Design1900 Series Overview
Page 8 and 9: Scope of Design (Contd.)1900 Series
Page 10 and 11: Scope of Design (Contd.)1900 Series
Page 12 and 13: Scope of Design (Contd.)How Pressur
Page 14 and 15: Scope of Design (Contd.)Product Fea
Page 16 and 17: Scope of Design (Contd.)1900 Steam
Page 18 and 19: Scope of Design (Contd.)1900 Restri
Page 20 and 21: Scope of Design (Contd.)1900 Soft S
Page 22 and 23: MaterialsConventional SRV 1900 Seri
Page 24 and 25: Materials (Contd.)Conventional SRV
Page 26 and 27: Materials (Contd.)Conventional SRV
Page 28 and 29: Materials (Contd.)1900 Soft Seat (D
Page 30 and 31: Materials (Contd.)1900 Liquid Trim
Page 32 and 33: Materials (Contd.)1900 Sour Gas (SG
Page 34 and 35: Materials (Contd.)Corrosive Service
Page 42 and 43: Materials (Contd.)Low Temperature (
Page 44 and 45: Materials (Contd.)1900 Valves for L
Page 46 and 47: Materials (Contd.)O-Ring Selection
Page 48 and 49: Accessories (Contd.)1900 Caps, Leve
Page 50 and 51: Accessories (Contd.)Bolted CapConso
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Dimensions & Weights1900 Flanged Se
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Dimensions & Weights (Contd.)ValveT
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Pressure / Temperature (Contd.)Valv
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Valve Configuration CodeMATERIAL CL
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Valve Configuration Code (Contd.)Le
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1900 Standard Series - Allied Valve Inc

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