Paddle Blank and Spacer/Sapde and Spacer

Paddle Blanks and Spacer/Spade and Spacer are essential components used in pipeline systems to isolate sections, facilitate maintenance, or allow the flow to bypass specific pipeline segments. Below are the detailed specifications, material grades, and equivalent grades for these components.1. Description• Paddle Blank: A type of blind flange used to block the flow in a pipeline. It is essentially a solid plate with no hole or opening.• Spacer (or Spade and Spacer): Consists of two parts:o Spade (or Spade Plate): A solid plate with a hole, used to facilitate the flow or bypass section.o Spacer (or Spacer Ring): A ring used in conjunction with the Spade to fill the gap between flanges and maintain alignment.2. Material GradesPaddle Blanks and Spades/Spacers are manufactured from various materials to suit different service conditions:1. Carbon Steel:o Grade: ASTM A105o Grade: ASTM A234 WPBo Grade: ASTM A350 LF2o ASTM A516 GR 60/70, ASTM A516 GR 60, ASTM A 516 GR 702. Stainless Steel:o Grade: ASTM A182 F304 (1.4301)o Grade: ASTM A182 F316 (1.4401)o Grade: ASTM A182 F304L (1.4307)o Grade: ASTM A182 F316L (1.4404)3. Duplex Stainless Steel:o Grade: ASTM A182 F51 (UNS S31803)o Grade: ASTM A182 F60 (UNS S32205)4. Super Duplex Stainless Steel:o Grade: ASTM A182 F53 (UNS S32750)o Grade: ASTM A182 F55 (UNS S32760)5. Nickel-Based Alloys:o Grade: Inconel 625 (ASTM B443)o Grade: Hastelloy C-276 (ASTM B575)6. Copper-Nickel:o Grade: CuNi 90/10 (C70600)o Grade: CuNi 70/30 (C71500)4. Pressure RatingsPressure ratings are categorized by:• Class 150: Low-pressure applications• Class 300: Medium-pressure applications• Class 600: High-pressure applications• Class 900: Very high-pressure applications• Class 1500: Extremely high-pressure applications• Class 2500: Ultra-high-pressure applications5. Standards• ASME B16.5/B16.48: Provides dimensions, materials, and pressure-temperature ratings for flanges and fittings, including paddles, spades, and spacers.• MSS SP-44: Specification for spectacle blinds and similar components, including detailed dimensions and pressure ratings.SummaryPaddle Blanks and Spades/Spacers are essential for pipeline isolation and maintenance, available in various grades including Carbon Steel (ASTM A105, A234 WPB), Stainless Steel (ASTM A182 F304, F316, F304L, F316L), Duplex (ASTM A182 F51, F60), Super Duplex (ASTM A182 F53, F55), Nickel-Based Alloys (Inconel 625, Hastelloy C-276), and Copper-Nickel (CuNi 90/10, CuNi 70/30). They conform to standards like ASME B16.5 and MSS SP-44 and are designed to meet specific pressure ratings.SPECFICATIONS:• Manufacturing Range: DN 15 (1/2”) to DN 1500 (60”)• Rating/Class: 150/300/600/900/1500/2500 and SCH 5/5S/10/10S/20/40/STD/60/80/XS/100/120/140/160/XXS etc.• Dimension Standard: ANSI/ASME B16.48/B16.5, etc.Material Type: CARBON/ALLOY STEEL: ASTM/ASME A105/105N, ASTM / ASME A182, ASTM / ASME A335 GR F1, F5, F9, F11, F12, F22, F23, F91, ASTM A516 GR 60/70, ASTM A516 GR 60, ASTM A516 GR 70LTCS: ASTM/ASME A350 LF2, ASME/ASTM A694 F42, F46, F52, F60, F65, F70STAINLESS STEEL: ASTM A182 F304 (1.4301), F304L (1.4306/1.4307), F316 (1.4401), F316L (1.4404), F304H, F309S, F309H, F310S, F310H, F316TI, F316H, F316LN, F317, F317L, F321, F321H, F11, F22, F91, F347, F347H, F904L,  UNS S 31254 (1.4547) DUPLEX STEEL: Duplex (S32205 / S31803) X2CrNiMoN22-5-3 (1.4462), S32750 (EN/DIN 1.4410, X2CrNiMoN25-7-4), S32760 (1.4501, X2CrNiMoCuWN 25-7-4)HIGH NICKEL ALLOYS: Inconel 600, Inconel 625, Inconel 718, Inconel 800, Inconel 825, Monel 400, Monel K-500, Hastelloy C-276, Hastelloy B-2, Hastelloy C-22, Titanium Gr 2, Titanium Gr 5COPPER NICKEL ALLOYS: CUNI 90/10 (C70600), CUNI 70/30 (C71500)