Can Hydraulic two-way valve with BSP female thread, type BKH be used with media other than hydraulic oil and at temperatures above the listed ranges without consulting Tubes International?

No. Hydraulic two-way valve with BSP female thread, type BKH must not be used with media other than hydraulic oil or at temperatures outside the listed ranges without prior consultation with Tubes International. The product description explicitly requires consultation to ensure compatibility (sealing material, chemical resistance and safe working pressure). Seals and their temperature limits are specified (PA: -40Â°C to +100Â°C; PVDF: -40Â°C to +150Â°C; PTFE: -200Â°C to +250Â°C; NBR: -20Â°C to +100Â°C; FKM: -20Â°C to +200Â°C), and working pressure depends on the chosen sealing material. To avoid seal damage, leakage, pressure loss or safety hazards, contact Tubes International for approval and correct material selection before using other media or operating outside these temperature ranges.

Can Hydraulic two-way valve with BSP female thread, type BKH be used with corrosive media or at extreme temperatures without consulting Tubes International?

No. Hydraulic two-way valve with BSP female thread, type BKH should not be used with corrosive media or at extreme temperatures without consulting Tubes International. Although the valve body, ball and stem are steel and seals are available in PA, PVDF or PTFE (ball) and NBR or FKM (stem), suitability depends on media compatibility and seal material limits. Temperature ranges vary: PA â40Â°C to +100Â°C, PVDF â40Â°C to +150Â°C, PTFE â200Â°C to +250Â°C; NBR â20Â°C to +100Â°C, FKM â20Â°C to +200Â°C. Working pressure also depends on the chosen sealing material. For corrosive fluids or temperatures near or beyond these limits, consult Tubes International for proper selection.

Can Hydraulic two-way valve with BSP female thread, type BKH be operated at pressures exceeding seal-rated limits without Tubes International consultation?

No. Hydraulic two-way valve with BSP female thread, type BKH must not be operated at pressures beyond the seal-rated limits without prior consultation with Tubes International. The product description explicitly states that working pressure depends on the sealing material (PA, PVDF, PTFE for the ball; NBR or FKM for the stem), and performance varies with media type and temperature. Exceeding the rated pressure for the chosen seal risks seal failure, leakage or catastrophic malfunctionâespecially if the medium or operating temperature differs from standard hydraulic oil. To ensure safe operation and correct selection (or qualification of alternative seals/materials), consult Tubes International before using the valve above its specified seal pressure or outside recommended temperature/media ranges.

Hydraulic two-way valve with BSP female thread, type BKH

All products, Directional control valves/

Additional information

Material	CS – steel (cast iron)

High-quality two-way ball valve type BKH with BSP internal thread, designed for high-pressure hydraulic and industrial installations. To properly select the valve for media other than hydraulic oil and for high operating temperatures, consultation with Tubes International is required. Working pressure depends on the sealing material of the valve. Material: steel (body, ball, stem). Seals: PA, PVDF or PTFE (ball), NBR or FKM (stem). Operating temperature: from -40°C to +100°C (PA); from -40°C to +150°C (PVDF); from -200°C to +250°C (PTFE); from -20°C to +100°C (NBR); from -20°C to +200°C (FKM).

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
HZ-BKH-G-02	Two-way valve DN4 with 1/8" BSP thread, PA/NBR	4	500
HZ-BKH-G-02-T-V	Two-way valve DN4 with 1/8" BSP thread, PTFE/FKM	4	100
HZ-BKH-G-04	Two-way valve DN6 with 1/4" BSP female thread, PA/NBR	6	500
HZ-BKH-G-04-P-N	Two-way valve DN6 with 1/4" BSP thread, PVDF/NBR, 140 bar	6	140
HZ-BKH-G-04-T-V	Two-way valve DN6 with 1/4" BSP thread, PTFE/FKM	6	100
HZ-BKH-G-06	Two-way valve DN10 with 3/8" BSP female thread, PA/NBR	10	500
HZ-BKH-G-06-T-V	Two-way valve DN10 with 3/8" BSP thread, PTFE/FKM	10	100
HZ-BKH-G-08	Two-way valve DN13 with 1/2" BSP female thread, PA/NBR	12	500
HZ-BKH-G-08-T-V	Two-way valve DN13 with 1/2" BSP thread, PTFE/FKM	12	100
HZ-BKH-G-12	Two-way valve DN20 with 3/4" BSP thread, PA/NBR	20	400
HZ-BKH-G-12-P-N	Two-way valve DN20 with 3/4" BSP thread, PVDF/NBR, 140 bar	20	140
HZ-BKH-G-12-T-V	Two-way valve DN20 with 3/4" BSP thread, PTFE/FKM	20	100
HZ-BKH-G-16	Two-way valve DN25 with 1" BSP thread, PA/NBR	25	350
HZ-BKH-G-16-P-N	Two-way valve DN25 with 1" BSP thread, PVDF/NBR, 140 bar	25	140
HZ-BKH-G-16-T-V	Two-way valve DN25 with 1" BSP thread, PTFE/FKM	25	100

High-quality two-way ball valve type BKH with BSP internal thread, designed for high-pressure hydraulic and industrial installations. To properly select the valve for media other than hydraulic oil and for high operating temperatures, consultation with Tubes International is required. Working pressure depends on the sealing material of the valve. Material: steel (body, ball, stem). Seals: PA, PVDF or PTFE (ball), NBR or FKM (stem). Operating temperature: from -40°C to +100°C (PA); from -40°C to +150°C (PVDF); from -200°C to +250°C (PTFE); from -20°C to +100°C (NBR); from -20°C to +200°C (FKM).