BK3Three-way Ball Valve

Classification: high pressure ball valve

Max. Working Pressure: 350bar
Nominal Size:6～40mm
Working Temperature:-45℃～+200℃
Body Material: 304 Stainless steel 、 45# Carbon steel

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Product description

Parameters Table

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Product details：

BK3 Three-way High Pressure Ball Valve with Square Body (DN6~40 mm)

Features
● Multiple types of passages available;
● -A type can connect high pressure at any end as required
● Body material: stainless steel or carbon steel
● Square body &compact construction
● Max. working pressure: see working pressure in “Table of Technical Data”

Ordering Information

Steel Ball Passage Mechanisms of Ball Valves

Precautions for Installation!!
The sealing function of BK3 standard ball valves (without“-A” in the ordering number) is valid in only two cases as follows:
(1) The pressure at the closed connection is zero;
(2) Pressure of two connected connections is higher than that of the closed one.

If it is required that all connections can connect a high pressure end (PN2>PN1), it is another three-way valve with special sealing construction and ‘-A’ needs to be added to the end of the ordering number when placing an order.

Table of BK3 Ball Valves and Sealing Materials

Type	Material	Uses
Metal Material	304 stainless steel	Intended for water, air and slightly corrosive media; temperature: -196℃~+400℃
Metal Material	45# carbon steel	Common oil hydraulic systems without special material requirements, etc.; surface galvanized; temperature: -45℃~+250℃
Ball Seat Seal	POM	Mainly used for non-corrosive oils, water and gases; temperature: -30℃~+100℃
Ball Seat Seal	PEEK	Relatively good corrosion resistance; wide temperature range: -50℃~+230℃
O-ring	FPM	Good chemical adaptability; intolerant of ammonia, alcohols and diethyl ether; applicable to most media;temperature: -25℃~+180℃
O-ring	EPDM	Intended for ammonia, vapor, formaldehyde and ethylene glycol; mineral oil intolerant; temperature: -50℃~+130℃

Parameters Table：

Table of Technical Data of Ball Valves [mm]

Carbon Steel Ball Valve Ordering Number	Stainless Steel Ball Valve Ordering Number	DN	LW	D	L	L1	H	H1	H2	B	C	SW	Working Pressure [bar]
BK3-G1/4-06-1125	BK3-G1/4-06-4425	6	6	G1/4	69	107	71	13	32	37	24	9	350
BK3-G3/8-08-1125	BK3-G3/8-08-4425	8	7	G3/8	69	107	71	13	32	37	24	9	350
BK3-G1/2-13-1125	BK3-G1/2-13-4425	13	12	G1/2	85	107	79	17.5	40	50	32.5	9	350
BK3-G3/4-20-1125	BK3-G3/4-20-4425	20	18	G3/4	96	165	126	24.5	57	63	38.5	14	315
BK3-G1-25-1125	BK3-G1-25-4425	25	22	G1	115	165	130	27.5	61	71	43.5	14	315
BK3-G11/4-32-1125	BK3-G11/4-32-4425	32	30	G11/4	115	211	145	39	86	90	52	17	250
BK3-G11/2-40-1125	BK3-G11/2-40-4425	40	35	G11/2	120	211	152	42	92	99	57	17	250