check valves dual plate check valves , single plate wafer check valve , astm a 351 gr cf3m , aisi 316l , aisi 316l , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 2 , valve code-nfwlsc3 , single plate wafer check valve , astm a 351 gr cf8 , aisi 304 , aisi 304 , 300# , wafer , serreted finish , for detailed specification refer material requisition , nps 2 , valve code-nfwss42 , single plate wafer check valve , astm a 351 gr cf8 , aisi 304 , viton , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 2 , valve code-nfwls44 , single plate wafer check valve , astm a 216 gr wcb , aisi 410 , aisi 410 , 150# , wafer , serreted finish , ibr approved , for detailed specification refer material requisition , nps 2 1/2 , valve code-nfwlcs2r , single plate wafer check valve , astm a 351 gr cf3m , aisi 316l , aisi 316l , 300# , wafer , serreted finish , for detailed specification refer material requisition , nps 2 1/2 , valve code-nfwssc3 , single plate wafer check valve , astm a 351 gr cf8 , aisi 304 , epdm , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 2 1/2 , valve code-nfwls43 , single plate wafer check valve , astm a 216 gr wcb , astm a 216 gr wcb , viton , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 3 , valve code-nfwlcs4 , single plate wafer check valve , astm a 351 gr cf3m , aisi 316l , aisi 316l , 300# , wafer , serreted finish , for detailed specification refer material requisition , nps 3 , valve code-nfwssc3 , single plate wafer check valve , astm a 351 gr cf8 , aisi 304 , epdm , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 3 , valve code-nfwls43 , single plate wafer check valve , astm a 216 gr wcb , astm a 216 gr wcb , epdm , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 4 , valve code-nfwlcs3 , single plate wafer check valve , astm a 351 gr cf8 , aisi 304 , epdm , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 4 , valve code-nfwls43 , single plate wafer check valve , astm a 351 gr cf3m , aisi 316l , aisi 316l , 300# , wafer , serreted finish , for detailed specification refer material requisition , nps 6 , valve code-nfwssc3 , single plate wafer check valve , astm a 351 gr cf8 , aisi 304 , aisi 304 , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 6 , valve code-nfwls42 , single plate wafer check valve , astm a 351 gr cf8 , aisi 304 , epdm , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 6 , valve code-nfwls43 , dual plate wafer check valve , astm a 216 gr wcb , astm a 216 gr wcb , epdm , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 12 , valve code-nswlcs3 , dual plate wafer check valve , astm a 216 gr wcb , astm a 216 gr wcb , viton , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 12 , valve code-nswlcs4 , dual plate wafer check valve , astm a 216 gr wcb , astm a 216 gr wcb , epdm , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 24 , valve code-nswlcs3 , dual plate wafer check valve , astm a 216 gr wcb , astm a 216 gr wcb , epdm , 150# , wafer , serreted finish , for detailed specification refer material requisition , nps 26 , valve code-nswlcs3