Stainless Steel SS Paddle Blank and Spacer/Sapde and Spacer

Stainless Steel Paddle Blanks and Spade/Spacers are vital components used in pipelines and pressure systems to isolate sections, allow for maintenance, or facilitate flow changes. Below are the full specifications, including all relevant grades and their equivalent grades, for these components.Stainless Steel Paddle Blanks and Spacer/Spade and Spacer Specifications1. Description• Paddle Blank: A solid plate used to block the flow through a pipeline. Typically has no openings.• Spacer/Spade and Spacer: Consists of:o Spade (or Spade Plate): A solid plate with a hole to facilitate or bypass flow.o Spacer (or Spacer Ring): A ring used to fill the gap between flanges and maintain alignment.2.Material GradesStainless steel is used for its superior corrosion resistance and strength. Here are the commonly used grades:1. ASTM A182 F304 (1.4301) / 304L (1.4307)2. ASTM A182 F316 (1.4401) / 316L (1.4404)3. ASTM A182 F304H (1.4948)4. ASTM A182 F316H (1.4401)5. ASTM A182 F310 (1.4845)6. ASTM A182 F321 (1.4541)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: Covers dimensions, materials, and pressure-temperature ratings for flanges and fittings, including paddle blanks, spades, and spacers.• MSS SP-44: Provides specifications for spectacle blinds, spades, and spacers, including dimensions and pressure ratings.6. Testing and Quality Control• Visual Inspection: To check for any visible defects.• Dimensional Inspection: Ensures compliance with specifications.• Non-Destructive Testing (NDT): Methods like ultrasonic testing or radiographic testing are used to confirm material integrity.SummaryStainless Steel Paddle Blanks and Spade/Spacer Components are essential for pipeline isolation and operational flexibility. They are available in various grades such as ASTM A182 F304, F304L, F316, F316L, F310, and F321, offering different levels of corrosion resistance and temperature tolerance. They conform to standards like ASME B16.5 and MSS SP-44, with dimensions and pressure ratings varying based on application requirements. Proper marking and rigorous testing ensure these components meet industry standards and perform effectively in their intended applications.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: STAINLESS 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)