Is the Hydraulic 2-Way Valve with BSP Female Thread, RKH Type compatible with fluids other than hydraulic oil and at temperatures above its specified ranges?

Hydraulic 2-Way Valve with BSP Female Thread, RKH Type — compatibility with fluids other than hydraulic oil and higher temperatures Yes — the Hydraulic 2-Way Valve with BSP Female Thread, RKH Type can be used with fluids other than hydraulic oil and at temperatures beyond typical hydraulic ranges, provided the correct seal materials and verification are selected. The valve’s wetted parts (body, ball, stem) are stainless steel AISI 316Ti, offering strong corrosion resistance. Seal options determine media and temperature compatibility: - Ball seals: POM (−40°C to +100°C) or PTFE (−200°C to +250°C). - Stem seals: NBR (−20°C to +100°C) or FKM (−20°C to +200°C). For aggressive chemicals, gases, food-grade media, or temperatures near/above the limits above, consult Tubes International to confirm chemical compatibility, pressure/temperature derating, and any required special seals or treatments. They can recommend the correct seal combination or alternative materials to ensure safe, reliable operation in your specific conditions.

Can the Hydraulic 2-Way Valve with BSP Female Thread, RKH Type be fitted with alternative seals or custom materials for compatibility with aggressive chemicals or extreme temperatures beyond standard options?

Hydraulic 2-Way Valve with BSP Female Thread, RKH Type — Yes, alternative seals or custom materials can be used, but with conditions. The standard RKH valve is supplied in AISI 316Ti stainless steel with seat materials POM or PTFE for the ball and NBR or FKM for the stem, covering broad temperature ranges and common hydraulic fluids. For aggressive chemicals or extreme temperatures beyond these ranges, Tubes International recommends consulting them to specify suitable seal materials or bespoke solutions. Possible alternatives include higher‑performance polymers (e.g., perfluoroelastomers, UHMWPE variants) or metal‑backed/graphite seals for very high temperatures or aggressive media, but compatibility must be validated for chemical resistance, pressure, friction, and wear. Before specifying alternatives, provide Tubes International with: operating temperatures and pressure, full media/chemical composition, concentration, cycle frequency, any regulatory or contamination constraints, and required service life. They will confirm feasibility, machining or design adjustments, lead times, and qualification testing needed to ensure safe, reliable operation.

Hydraulic 2-Way Valve with BSP Female Thread, RKH Type

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Additional information

Material	SS – stainless steel

The RKH two-way ball valve with internal BSP thread is a reliable solution designed for demanding hydraulic and industrial systems operating under high pressure. Manufactured from durable stainless steel AISI 316Ti, including the body, ball, and stem, it ensures exceptional resistance to corrosion and long service life even in harsh environments. Depending on application requirements, the valve can be equipped with seals made of POM or PTFE for the ball and NBR or FKM for the stem, allowing it to perform efficiently across a wide range of temperatures: from -40°C to +100°C with POM, from -200°C to +250°C with PTFE, from -20°C to +100°C with NBR, and from -20°C to +200°C with FKM. This versatility makes the RKH valve an excellent choice for installations where reliability, safety, and adaptability are crucial. For applications involving media other than hydraulic oil or for use at elevated temperatures, consultation with Tubes International ensures optimal selection and performance tailored to specific operating conditions.

List of product variants

Article number	Product variant name	Nominal inner diameter	Working pressure [bar]
HZ-RKH-G-02	Two-way valve DN4 with 1/8" BSP thread, AISI 316Ti, POM/FKM	4	400
HZ-RKH-G-02-T-V	Two-way valve DN4 with 1/8" BSP thread, AISI 316Ti, PTFE/FKM	4	100
HZ-RKH-G-04	Two-way valve DN6 with 1/4" BSP thread, AISI 316Ti, POM/FKM	6	400
HZ-RKH-G-04-T-V	Two-way valve DN6 with 1/4" BSP thread, AISI 316Ti, PTFE/FKM	6	100
HZ-RKH-G-04PH	Two-way valve DN6 with 1/4" BSP thread, AISI 316, POM/NBR, 500 bar	6	500
HZ-RKH-G-06	Two-way valve DN10 with 3/8" BSP thread, AISI 316Ti, POM/FKM	10	400
HZ-RKH-G-06-T-V	Two-way valve DN10 with 3/8" BSP thread, AISI 316Ti, PTFE/FKM	10	100
HZ-RKH-G-06PH	Two-way valve DN10 with 3/8" BSP thread, AISI 316, POM/NBR, 500 bar	10	500
HZ-RKH-G-08	Two-way valve DN13 with 1/2" BSP thread, AISI 316Ti, POM/FKM	12	400
HZ-RKH-G-08-T-V	Two-way valve DN13 with 1/2" BSP thread, AISI 316Ti, PTFE/FKM	12	100
HZ-RKH-G-08PH	Two-way valve DN13 with 1/2" BSP thread, AISI 316, POM/NBR, 500 bar	12	500
HZ-RKH-G-12	Two-way valve DN20 with 3/4" BSP thread, AISI 316Ti, POM/FKM	20	350
HZ-RKH-G-12-T-V	Two-way valve DN20 with 3/4" BSP thread, AISI 316Ti, PTFE/FKM	20	100
HZ-RKH-G-12PH	Two-way valve DN20 with 3/4" BSP thread, AISI 316, POM/NBR, 400 bar	20	400
HZ-RKH-G-16	Two-way valve DN25 with 1" BSP thread, AISI 316Ti, POM/FKM	25	350
HZ-RKH-G-16-T-V	Two-way valve DN25 with 1" BSP thread, AISI 316Ti, PTFE/FKM	25	100
HZ-RKH-G-16PH	Two-way valve DN25 with 1" BSP thread, AISI 316, POM/NBR, 400 bar	25	400
HZ-RKH-G-20	Two-way valve DN32 with 1.1/4" BSP thread, AISI 316Ti, POM/FKM	32	400
HZ-RKH-G-20-T-V	Two-way valve DN32 with 1.1/4" BSP thread, AISI 316Ti, PTFE/FKM	32	63
HZ-RKH-G-20PH	Two-way valve DN32 with 1.1/4" BSP thread, AISI 316, POM/NBR, 350 bar	32	350
HZ-RKH-G-24	Two-way valve DN40 with 1.1/2" BSP thread, AISI 316Ti, POM/FKM	40	400
HZ-RKH-G-24-T-V	Two-way valve DN40 with 1.1/2" BSP thread, AISI 316Ti, PTFE/FKM	40	63
HZ-RKH-G-24PH	Two-way valve DN40 with 1.1/2" BSP thread, AISI 316, POM/NBR, 350 bar	40	350
HZ-RKH-G-32	Two-way valve DN50 with 2" BSP thread, AISI 316Ti, POM/FKM	50	400
HZ-RKH-G-32-T-V	Two-way valve DN50 with 2" BSP thread, AISI 316Ti, PTFE/FKM	50	63
HZ-RKH-G-32PH	Two-way valve DN50 with 2" BSP thread, AISI 316, POM/NBR, 350 bar	50	350

The RKH two-way ball valve with internal BSP thread is a reliable solution designed for demanding hydraulic and industrial systems operating under high pressure. Manufactured from durable stainless steel AISI 316Ti, including the body, ball, and stem, it ensures exceptional resistance to corrosion and long service life even in harsh environments. Depending on application requirements, the valve can be equipped with seals made of POM or PTFE for the ball and NBR or FKM for the stem, allowing it to perform efficiently across a wide range of temperatures: from -40°C to +100°C with POM, from -200°C to +250°C with PTFE, from -20°C to +100°C with NBR, and from -20°C to +200°C with FKM. This versatility makes the RKH valve an excellent choice for installations where reliability, safety, and adaptability are crucial. For applications involving media other than hydraulic oil or for use at elevated temperatures, consultation with Tubes International ensures optimal selection and performance tailored to specific operating conditions.