Wafer check valve

Wafer type check valve Pressure ratingDNDimension(mm) Weight (Kg) Flange(as reference)NPSDNLDD3D2Diameter of bore central circle of the boltQuantityDiameter of the boltLength of the boltinmmRFRJClass600 PN11.0MPa2506011058514127.085/8M161751802 1/2656712873655149.083/4M201952003807314788808168.583/4M2021021541007919110810211216.087/8M24235240512510523913612720267.081M27280285615013626416215226292.0121M27320325820016531821220055349.0121 1/8M3037037510250213398266250103432.0161 1/4M3344044512300229455312305140489.0201 1/4M3346046514350273490355337223527.0201 3/8M3652052516400305562400387360603.0201 1/2M3957558018450362610450438395654.0201 5/8M4265065520500368680500489518724.0241 5/8M4267068024600438786600591836838.0241 7/8M48780790 Main material: Carbon steel, low temperature steel, F51/F53, titanium alloy, INCONEL625, ss304, ss304L, ss316, ss316L, chromium, monel(400/500), 20#alloy, Haneys alloy and so on. NO.NAMEMATERAIL1BodyGG252DiscSS3163StemSS4104SpringSS3045WasherPTFE6GasketNBR7Hex nutA193A8SeatWCB Standard: Design and manufacture: API594, API6D, JB/T8937.Length of structure: API594, API6D, DIN3202, JB/T8937Pressure-Temperature grade: SNSIB16,34, DIN2401, GB/T9124, HG20604, HG20605, SH3406, JB/T74Check and experiment: API598, JB/T9092Pipe flange: JB/T74 90,GB/T9112/9124, HG20592 20635, SH3406, ANSIB16.5, DIN2543 2548, GB/T13042, APIT605, ASMEB16.47 Construction feature: Short construction, is 1/4 1/8 of traditional valve Small volume, light weight, weight is 1/4 1/20 of traditional valve Disc close fast, small pressure of water hammerHorizontal or vertical pipe can apply either, easy installationFlow smoothly, fluid resistance low.Sensitive, good sealing.Short disc space, low impact when closeEntirety construction simple and compact, shape is beautifully.Long service life, high reliability