Bosch Rexroth material number R900481624 is the Z2FS6-2-4X/2QV Throttle Check Valve NG6, 350 bar, 80 l/min (size 6, A1 → A2, B1 → B2 or A2 → A1, B2 → B1, with mechanical actuation).
The throttle valve controls actuator speed by restricting flow; meter-in or meter-out configuration and the channel are coded in the type designation.
More Rexroth hydraulic and linear-motion parts: Bosch Rexroth range.
The Rexroth product description reads: “Industrial hydraulic valve in a high performance range. Reliable throttling of the flow to setting.”
Technical data
| Material number | R900481624 |
|---|---|
| Type code | Z2FS6-2-4X/2QV |
| Operating pressure, max. | 350 bar |
| Max. flow | 80 l/min |
| Spool symbol | A1 → A2, B1 → B2 or A2 → A1, B2 → B1 |
| Type of connection | Sandwich plate |
| Size | 6 |
| Type of actuation | with mechanical actuation |
| Number of ports | 4 |
| Number of switching positions | 2 |
| Seals | FKM |
| Weight | 1.04 kg |
| Hydraulic fluids (per Rexroth) | HEES, HEPG, HETG, HFDR, HFDU, HL, HLP, HLPD, HVLP, HVLPD |
| Product family | Z2FS6 |
| Data sheet | RD27506 |
| Brand | Bosch Rexroth |
| Condition | New, original |
Design features, as listed by Rexroth
- Direct actuated
- Setscrew with lock nut
- Standard setting
Typical applications
- Cylinder speed adjustment
- Stacked valve assemblies
- Machine tools and handling equipment
- Presses
- Replacement of an existing flow valve
Compatibility and replacement
Order with the 10-character material number R900481624; in Rexroth codes every character (size, pressure stage, adjustment element, options and seals) changes the part, so the type code Z2FS6-2-4X/2QV on the nameplate should match exactly.
The values in the table come from the official Bosch Rexroth product data. If your old part shows a different series index (for example 5X instead of 6X), send us a photo and we will confirm the current equivalent.
Replacement checklist
- Meter-in or meter-out
- Channel (A, B or both)
- Size and ISO 4401 pattern
Frequently asked questions
How is it actuated?
With mechanical actuation, according to the Bosch Rexroth product data.
How is it connected?
Sandwich plate, according to the Bosch Rexroth product data.
Which hydraulic fluids can it be used with?
Rexroth lists HEES, HEPG, HETG, HFDR, HFDU, HL, HLP, HLPD, HVLP, HVLPD fluids for this part; check that the seal material suits your fluid.
Which seal material is fitted?
FKM, according to the Bosch Rexroth product data.
What is the maximum operating pressure?
350 bar, according to the Bosch Rexroth product data.
Can I get the datasheet?
The official manufacturer data is the source of the technical values above; we can send the datasheet with the quotation on request.
Do you ship to my country, and what is the warranty?
Yes. RendatSP ships worldwide from Yiwu, China, by air in 5 to 7 days once the part is ready, and every part carries a 1-year warranty. Send the order number and quantity on WhatsApp and we will reply with a quotation.
How to order
Message us the order number and quantity. For breakdowns, tell us the delivery address and we will offer the fastest shipping option. If the exact part is discontinued, we confirm the official successor before quoting.
Every part RendatSP supplies is new and original, carries a 1-year warranty and ships worldwide by air in 5 to 7 days once ready (shipping, payment and warranty). Send us the order number and quantity on WhatsApp or through the inquiry form and we will quote the same working day. Agents in Saudi Arabia, Iraq, the UAE, Egypt, Oman, Libya, Morocco, Mauritania, Yemen, Algeria and Jordan.





