WP 321

We specialize in manufacturing and export of best quality wp 321, steel pressure flanges, ss pressure flanges, that are available in multitude of sizes and dimensions to meet the requirements of diverse industries. These high pressure flange-type insulating couplings are available with wide separation between exposed metal parts. We deliver these flanges in proper packaging and within specified time frame.

Temp. °F	150	300	400	600	900	1500	2500
-20 to: 100	235	615	825	1235	1850	3085	5145
200	200	525	695	1045	1570	2615	4355
300	180	465	625	935	1400	2335	3890
400	160	425	565	850	1270	2120	3530
500	150	395	525	785	1180	1965	3275
600	145	375	500	750	1125	1870	3120
650	140	365	490	730	1100	1830	3050
700	140	360	480	720	1080	1800	3000
750	135	355	475	710	1070	1780	2965
800	135	355	470	710	1060	1770	2950
850	105	350	465	700	1050	1750	2915
900	65	350	465	695	1045	1740	2895
950	40	345	460	690	1035	1730	2880
1000	20	345	460	685	1030	1720	2865
1050		315	420	630	945	1575	2630
1100		235	315	475	710	1185	1970
1150		170	230	345	515	855	1430
1200		125	165	245	370	615	1030
1250		85	115	170	255	430	715
1300		60	80	155	175	290	485
1350		40	50	75	115	190	315
1400		25	30	50	70	120	200
1450		15	25	35	50	85	145
1500		10	15	20	30	50	85

Temp. ⁰C	150	300	400	600	900	1500	2500
- 30 to: 38	16.3	42.5	56.7	85.0	127.6	212.7	354.5
50	15.7	41.1	54.8	82.2	123.3	205.5	342.6
100	13.6	35.5	47.4	71.1	106.6	177.8	296.3
150	12.3	32.1	42.8	64.2	96.4	160.6	267.7
200	11.2	29.4	39.2	58.9	88.3	147.2	245.4
250	10.5	27.4	36.6	54.9	82.4	137.3	228.9
300	10.0	26.1	34.8	52.3	78.5	130.8	218.0
350	9.6	25.1	33.5	50.2	75.4	125.7	209.5
375	9.4	24.7	33.0	49.5	74.3	123.9	206.5
400	9.4	24.5	32.7	49.0	73.5	122.6	204.4
425	9.3	24.4	32.5	48.8	73.2	122.0	203.3
450	7.6	24.1	32.2	48.3	72.4	120.7	201.3
475	5.1	24.0	32.0	48.0	72.0	120.0	200.0
500	3.3	23.8	31.8	47.7	71.6	119.3	198.9
525	1.9	23.7	31.6	47.5	71.2	118.7	197.9
550	0.7	22.8	30.4	45.6	68.4	114.1	190.2
575		19.8	26.5	39.7	59.6	99.4	165.8
600		15.2	20.3	30.4	45.6	76.1	126.9
625		11.3	15.1	22.7	34.0	56.7	94.6
650		8.4	11.2	16.8	25.2	42.0	70.0
675		6.0	8.0	12.1	18.1	30.3	50.5
700		4.3	5.7	8.6	12.9	21.6	36.0
725		2.9	3.9	5.9	8.9	14.8	24.7
750		1.9	2.6	3.9	5.9	9.9	16.6
775		1.3	1.8	2.7	4.1	6.9	11.6
800		0.9	1.2	1.9	2.9	4.8	8.1

Working Pressure Type Flanges