Double Block & Bleed

Monoflange valves are used in isolation services, pressure measurement, level measurement, and sampling.

One-piece ultra-slimline forged or bar-stock body combines a compact design with strength and reduces potential leak paths compared to conventional designs.
Bubble tight shut-off.
1/2" NPT-Female thread outlet to ASME B1.20.1
1/2" NPT-Female thread vent connection to ASME B1.20.1
Material thickness to ASME A16.34
Fire safe to API 607.

Pressure Temperature Rating: Working pressure #150 to #2500, up to working temperatures listed below in accordance with ASME B16.5
Working Temperature:
-58ºF to 400ºF (-50ºC to 204ºC) for stainless steel & duplex valves.
-50ºF to 400ºF (-46ºC to 204ºC) for carbon steel valves.

All valves are 100% factory tested.
Shell test is performed at 1.5 times to the maximum working pressure and
Seat test is performed at 1.1 times to the maximum working pressure in accordance with ASME BS EN 12266-1 and API 598.

Double Block & Bleed Monoflange Valve - MF4

Size	Pressure Class (lb)	Ø D	No of Holes	Ø HOLE	RF Ø	RF (T)	RTJ Ø	RTJ (T)	L
1/2" (DN 15)	150	89	4	16	34.9	1.5	--	--	51.5
1/2" (DN 15)	300	95	4	16	34.9	1.5	50.8	5.56	51.5
1/2" (DN 15)	600	95	4	16	34.9	6.4	50.8	5.56	56.5
1/2" (DN 15)	900 / 1500	121	4	22	34.9	6.4	60.5	6.35	56.5
1/2" (DN 15)	2500	133	4	22.2	34.9	6.4	65.0	6.35	56.5
3/4" (DN 20)	150	99	4	16	43.0	1.5	--	--	51.5
3/4" (DN 20)	300	117	4	19	43.0	1.5	63.5	6.35	51.5
3/4" (DN 20)	600	117	4	19	43.0	6.4	63.5	6.35	51.5
3/4" (DN 20)	900 / 1500	130	4	22	43.0	6.4	66.5	6.35	56.4
3/4" (DN 20)	2500	140	4	22.2	43.0	6.4	73.2	6.35	56.4
1" (DN 25)	150	108	4	16	50.8	1.5	63.5	6.35	51.5
1" (DN 25)	300	124	4	19	50.8	1.5	69.9	6.35	51.5
1" (DN 25)	600	124	4	19	50.8	6.4	69.9	6.35	56.5
1" (DN 25)	900 / 1500	149	4	25	50.8	6.4	71.4	6.35	56.5
1" (DN 25)	2500	159	4	25.4	50.8	6.4	82.6	6.35	56.5
1.1/2" (DN 40)	150	127	4	16	73.0	1.5	82.6	6.35	51.5
1.1/2" (DN 40)	300	156	4	22.2	73.0	1.5	90.4	6.35	51.5
1.1/2" (DN 40)	600	156	4	22.2	73.0	6.4	90.4	6.35	56.4
1.1/2" (DN 40)	900 / 1500	178	4	28	73.0	6.4	91.9	6.35	56.4
1.1/2" (DN 40)	2500	203	4	31.8	73.0	6.4	114.3	7.92	56.4
2" (DN 50)	150	152	4	19	92.1	1.5	101.6	7.92	51.5
2" (DN 50)	300	165	8	19	92.1	1.5	108.0	7.92	51.5
2" (DN 50)	600	165	8	19	92.1	6.4	108.0	7.92	56.5
2' (DN 50)	900 / 1500	216	8	25	92.1	6.4	123.9	7.92	56.5
2" (DN 50)	2500	235	8	28.5	92.1	6.4	133.4	7.92	56.5

• Dimensions are for reference only. Subject to change.

Products