Models: 781, 781-WE - Watts Water Technologies

1 Capacity Generously proportioned bodies. Open Area Ratio much greater than pipe size, ensuring low pressure Steam Specialty product specifications in customary units and metric are approximate and are provided for reference only. For precise measurements, please contact Mueller Steam Specialty Technical Service. Mueller Steam Specialty reserves the right to change or modify product design, construction, specifications, or materials without prior notice and without incurring any obligation to make such changes and modifications on Mueller Steam Specialty products previously or subsequently : 781*, 781-WE *ES-MS-781_781 WEJob Name Contractor Job Location Approval Engineer Contractor s No.

2 Approval Representative Cast Carbon & Alloy Steel Flanged & Butt Weld End Y StrainersModels: 781*, 781-WE Sizes: 1 2" 24"Features Machined seats in both body and cap align and lock the screen in place to stop sediment bypass. Machined seats facilitate alignment and accurate reseating after Designed for Class 150 specifications. Heavy gauge reinforced screens are NOTE: Model 781-WE ends are machined to match Schedule 40 pipe. Other connections are available, consult Self-cleaning is accomplished by opening the plug or valve connected to the blowoff outlet. Blowoff Outlets Blowoff outlets are NPT tapped at location C.

3 See next page for NPT sizes. Blind covers are available, consult FREE*PRESSURE/TEMPERATURE NON-SHOCKMODELMATERIALRATING781, 781-WECarbon Steel285 psi @ -20 to 100 F bar @ 38 C 150psi @ 565 F bar @ 300 C781, 781-WEChrome Moly290psi @ -20 to 100 bar @ 38 C 150psi @ 565 F bar @ 300 C* The wetted surface of this product contacted by consumable Water contains less than of lead by information contained herein is not intended to replace the full prod-uct installation and safety information available or the experience of a trained product installer. You are required to thoroughly read all installation instructions and product safety information before beginning the installation of this Class 150781-WE Class 150 STANDARD ( Water )STEAM RECOMENDATIONMODELSIZESMATERIALOPENINGMA TERIALOPENING1 2" - 4" perf5" and perf* 781/ 781-WE supersedes model 761/741-WE.

4 761/761-WE available upon 781-WEModel 781 Limited Warranty: Mueller Steam Specialty warrants each product to be free from defects in material and workmanship under normal usage for a period of one year from the date of original shipment. In the event of such defects within the warranty period, the Company will, at its option, replace or recondition the product without charge. This shall constitute the sole and exclusive remedy for breach of warranty, and the Company shall not be responsible for any incidental, special or consequential damages, including without limitation, lost profits or the cost of repairing or replacing other property which is damaged if this product does not work properly, other costs resulting from labor charges, delays, vandalism, negligence, fouling caused by foreign material, damage from adverse Water conditions, chemical, or any other circumstances over which the Company has no control.

5 This warranty shall be invalidated by any abuse, misuse, misapplication or improper installation of the product. THIS WARRANTY IS IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OR IMPLIED, INCLUDING ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. Any implied warranties that are imposed by law are limited in duration to one States do not allow limitations on how long an implied warranty lasts, and some States do not allow the exclusion or limitation of incidental or consequential damages. Therefore the above limitations may not apply to you. This Limited Warranty gives you specific legal rights, and you may have other rights that vary from State to State. You should consult applicable state laws to determine your : T: (800) 334-6259 F: (800) 421-6772 America: T: (52) 81-1001-8600 OF MATERIAL MODELS 781, 781-WEITEMDESCRIPTIONMATERIAL1 BODYC arbon Steel ASTM A216 Grade WCB2 COVER **Carbon Steel ASTM A216 Grade WCB3 SCREEN304 SS4 GASKETC ompressed Non-Asbestos5 STUDSA193 B76 NUTSA194 2H** Cover may be manufactured from equivalent grade plate materialES-MS-781_781WE 1911 2019 Mueller Steam SpecialtyPressure DropSee Pressure Drop Charts in Technical Data section of the Mueller Steam Specialty Engineering binder.

6 Cv values are noted in the Dimensions and Weights table (NPT)D Screen 21557 814931 2893 8 3 42073 818733 4951 15 12573 818733 4951 22 11 432717843 41211 38 11 24071 818143 41211 42 25077 820051 41331 70 21 26593 424861 216512593 110 380101 162567178125102543415 140 4100121 830881 421011 240123055525 245 5125155 8397111 4286250205089040 400 6150181 2470131 23432502050815369 600 8200213 8543151 2394250223 4578220100 1,000 1025026660181 247025028711320145 1,580 12300297 8759221 456525030762550250 2,200 143503691425635250361 2927975442 3,200 16400419 161056261 26732504210671635741 4,900 18450461168347 8886250507 8129223761078 6,100 20500491 2125739991250553 8140726751213 8,000 24600583 81483441 61122250671 4170848802213 11.

7 000 SIZEDIMENSIONSWEIGHTCvABC (NPT)D Screen 21565 816831 2893 8 3 42085 1621133 4951 215513094 15 12585 1625733 4951 215513094 22 11 432101 826051 41331 38 11 240101 427951 41331 42 250101 421951 41331 70 21 265105 826961 216512593 110 38012305717812510254209 140 4100141 236881 421011 240123054018 245 5125195 16491131 2343250205089040 400 6150195 16491131 2343250205089040 600 8200233 8594153 4400250223 457816876 1,000 10250273 86951948325028711250113 1,580 1230032813221 256525030762440200 2,200 143503691425635250361 2927815370 3,200 16400411 61056261 26732504210671433650 4,900 18450461168347 8886250507 812922152976 6,100 20500491 2125739991250553 8140723931085 8,000 24600583 81483441 61122250671 4170844862034 11.

8 000 Apply for certified drawingAlso Available:Body/Cap: Carbon-Moly ASTM A217 Gr. WC1 Chrome-Moly ASTM A217 Gr. WC6 Chrome-Moly ASTM A217 Gr. WC9 Dimensions and WeightsModel 781-WEModel 781