Unidirectional Knife Gate Valves Series 943 | Bluebell - Authorized Valve Dealer & Supplier

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Series 943

Unidirectional Knife Gate Valve

DESCRIPTION:

Bray’s Series 943 Knife Gate Valve features a full lug design and is available in CF8, CF8M, CF3M, and SS2507 materials for demanding applications. It offers standard metal-to-metal seating with optional unique self-locking PTFE or soft seats, engineered for high-performance unidirectional sealing. This valve is suitable for general-purpose on/off service and isolation of clean, dirty, corrosive, abrasive, viscous, and high-temperature media. Designed for maximum performance, it includes options such as replaceable deflection cones and zero-leakage resilient seats.

SPECIFICATIONS:

• PMA: Max. - 2-24 150 psi | 50-600mm 10 bar

• MOC: CF8 Stainless Steel, CF8M Stainless Steel, CF3M Stainless Steel, CE3MN Duplex Steel (SS 2507)

• SEAT: Buna-N, EPDM, Viton©, RPTFE

Available Sizes

Detailed Specifications

Size Range:2-24 150 psi | 50-600mm 10 bar

Seat Material Temperature Range:Buna-N: -34 to 194°F (-36 to 90°C)
EPDM: -65 to 248°F (-54 to 120°C)
Viton®: -15 to 392°F (-26 to 200°C)
RPTFE: -235 to 500°F (-148 to 260°C)

Packing Maximum Pressure:PTFE: 500°F (260°C)
Impregnated PTFE: 450°F (232°C)
PTFE/Buna-N: 194°F (90°C)
PTFE/Viton®: 392°F (200°C)
PTFE/EPDM: 248°F (120°C)

Body Style:Single Piece | Lug

Body Materials:CF8 Stainless Steel, CF8M Stainless Steel, CF3M Stainless Steel, CE3MN Duplex Steel (SS 2507)

Stem Materials:316 Stainless Steel, 304 Stainless Steel

Product GAD

Unidirectional Knife Gate Valves Series 943 Design

Dimensions

DN	A	B-PCD	R/F ØC	D	E	F	G	ØH	ØI	ØJ	K	L	M	P
50	48	120.7	92	365	405	525	--	203	--	--	2	5⁄8"-11	9	2
80	51	152.4	127	405	470	585	--	203	--	--	2	5⁄8"-11	9	2
100	51	190.5	158	455	544	655	--	203	--	--	2	5⁄8"-11	9	2
125	57	215.9	186	505	615	750	--	254	--	--	2	3⁄4"-10	11	6
150	57	241.3	216	530	675	810	--	254	--	--	2	3⁄4"-10	11	6
200	70	298.5	270	610	816	945	865	300	500	2	3⁄4"-10	11	6
250	70	362.0	324	700	943	1095	990	406	300	500	4	7⁄8"-9	11	8
300	76	431.8	381	805	1102	1250	1150	406	300	500	4	7⁄8"-9	11	8
350	76	476.3	413	885	1226	1375	1270	508	300	500	4	1"-8	14	8
400	89	539.8	470	983	1370	1556	1415	508	300	500	6	1"-8	21	10
450	89	577.9	533	1068	1510	1663	1560	508	300	500	6	1-1⁄8"-7	19	10
500	114	635.0	585	1183	1665	1876	1715	508	300	500	6	1-1⁄8"-7	19	14
600	114	749.3	692	1345	1925	2195	1975	508	310	500	8	1-1⁄4"-7	26	14

Weight

HAND WHEEL	PNEUMATIC ACTUATOR	GEAR OPERATOR
9	13	--
11	14	--
14	19	--
19	28	--
21	30	--
31	40	39
49	69	54
60	83	60
89	118	91
128	162	141
162	193	175
215	275	228
287	352	300

Knife Gate Valves