|
Thông tin chi tiết sản phẩm:
|
| Phạm vi nhiệt độ chất lỏng: | -30 °C đến +80 °C (phớt NBR) | Dòng thành phần: | 2X (dòng 20+, có thể hoán đổi kích thước) |
|---|---|---|---|
| Mô hình cơ sở: | 2FRM 6 - B36 - 2X / 16QRV | Tối đa. áp lực hoạt động: | Thanh 315 (cổng A & B) |
| Tối đa. Dòng chảy có thể điều chỉnh: | 16 L/phút (Dải Q thường là 0,5–16 L/phút) |
|
Parameter |
Value |
|---|---|
|
Full Part Number |
R983032416 (IN001 = individual inspection suffix) |
|
Base Model |
2FRM 6 - B36 - 2X / 16QRV |
|
Valve Type |
2-way throttle check valve with pressure compensator (flow control — constant flow despite pressure fluctuations) |
|
Nominal Size (NG) |
6 — sandwich mounting per ISO 6263 / NG6 (DIN 24340 Form C) |
|
Function |
Adjustable orifice + pressure-compensated spool → constant flow A→B; free reverse flow B→A via check valve |
|
Adjustment Type |
B36 = Rotary knurled knob with scale & lock setscrew (hand-adjustable) |
|
Component Series |
2X (series 20+, dimensionally interchangeable) |
|
Max. Adjustable Flow |
16 L/min (Q range typically 0.5–16 L/min) |
|
Max. Operating Pressure |
315 bar (ports A & B) |
|
Cracking Pressure (Reverse Check) |
approx. 0.5 bar (standard free-return) |
|
Mounting Pattern |
NG6 sandwich (4× M5 bolts), between directional valve & subplate |
|
Seal Material |
NBR (standard, code V — for mineral oil HL/HLP, HFC) |
|
Hydraulic Fluid |
Mineral oil HL, HLP per DIN 51524; HFC (water-glycol); HLPD, HVLP, HVLPD |
|
Fluid Temperature Range |
-30 °C to +80 °C (NBR seals) |
|
Viscosity Range |
10–800 mm²/s |
|
Weight (approx.) |
1.25 kg |
|
Body Material |
Steel / cast iron, zinc-plated |
| R900909853 2FRM6K0-1X/10QMV |
| R900943457 2FRM6B76-3X/10QJMV |
| R900960435 2FRM4K2-3X/0.7 |
| R900978333 2FRM4K2-3X/3 |
| R900985448 2FRM10K2-1X/60QRV |
| R900986124 2FRM6A36-3X/32QMV |
| R900987757 2FRM6SB76-3X/1.5QRV |
| R900987983 2FRM6A76-3X/25QMV |
| R900988802 2FRM6B76-3X/3QJRV |
| R900990090 2FRM10-3X/50LMT |
| R900990091 2FRM6B36-3X/25QRMT |
| R900990368 2FRM6SB76-3X/6QRV |
| R900990521 2FRM10-3X/10LMT |
| R901001077 2FRM6SB76-3X/0.2QMV |
| R901005959 2FRM6SB76-3X/25QMV |
| R901018475 2FRM6SB76-3X/3QRV |
| R901020533 2FRM6SB76-3X/10QMV |
| R901028678 2FRM6SB76-3X/0.6QMV |
| R901030544 2FRM6B36-3X/6QXCRV |
| R901031622 2FRM6A76-3X/0.2QRV |
| R901041036 2FRM6B36-3X/3QXCRV |
| R901130292 2FRM6B36-3X/25QXCRV |
| R901154115 2FRM6B36-3X/25QJMV |
| R901161500 2FRM6SB76-3X/3QMV |
| R901165527 2FRM6B76-3X/32QRMT |
| R901223872 2FRM6B36-3X/6QXCMV |
| R901250512 2FRM6B36-3X/1.5QXCRV |
| R901312058 2FRM6B36-3X/6QJMV |
| R901316131 2FRM6B36-3X/10QXCMV |
| R901332323 2FRM6SB76-3X/16QMV |
| R901332824 2FRM6A36-3X/10QJMV |
| R901332846 2FRM6A36-3X/25QJMV |
| R901350281 2FRM6B36-3X/25QXCMV |
| R901362832 2FRM6B36-3X/0.2QXCRV |
| 4WRZE16E1-150-72/6EG24K31/A1M |
| 4WRZE16E1-150-72/6EG24N9EK31/A1D3M |
| 4WRZE16E1-150-72/6EG24N9EK31/A1D3V |
| 4WRZE16E1-150-72/6EG24N9EK31/A1M |
| 4WRZE16E1-150-72/6EG24N9ETK31/A1D3V |
| 4WRZE16E1-150-72/6EG24N9K31/A1D3M |
| 4WRZE16E1-150-72/6EG24N9K31/A1M |
| 4WRZE16E1-150-72/6EG24N9K31/A1V |
| 4WRZE16E1-150-72/6EG24NJEK31/F1D3M |
Q1: Is this a hydraulic lock / pilot check valve (double block-and-bleed)?
No. A hydraulic lock / pilot-operated check valve is Rexroth type SV (cartridge) or SL (sandwich dual pilot check). This item (2FRM6) is a pressure-compensated flow control / speed control valve — it meters flow in one direction (A→B) and allows free return (B→A). It does not hold/lock a cylinder.
Q2: Is this a simple throttle / needle valve?
No. A needle valve lets flow vary with ΔP. The 2FRM is pressure-compensated — the built-in compensator spool keeps the set flow essentially constantdespite load or supply pressure changes (provided ≥~15 bar ΔP across compensator).
Q3: What does "B36 /16QRV" mean?
B36 = NG6 sandwich, rotary knurled knob with scale (0–max reference) + locking setscrew — adjustable by hand.
/16 = maximum adjustable flow = 16 L/min (mid-capacity; also avail: /1.5, /3, /6, /10, /25, /32).
Q = flow controlled in A→B direction.
R = free reverse flow B→A via check valve.
V = NBR seals (standard).
Q4: How do I set the flow?
Loosen the lock setscrew, turn the knurled knob clockwise to increase flow, counterclockwise to decrease. The knob has a relative scale — use a flow meter to correlate to actual L/min. Retighten the lock setscrew after setting.
Q5: How is it mounted?
As a sandwich (stackable) valve between a directional control valve and the NG6 subplate, same bolt pattern as ZDR/Z2FS sandwiches (4× M5). Observe the arrow on the valve body — A→B = controlled/metered flow, B→A = free return.
Q6: Does it work both ways?
No — one direction is pressure-compensated metered flow (A→B), the opposite direction (B→A) is free return through the check valve (no flow control, minimal pressure drop ~0.5 bar). For bidirectional flow control use two 2FRM valves.
Q7: Minimum pressure requirement?
The pressure compensator typically needs min. ~15 bar differential pressure across the compensator to regulate properly. Supply pressure must exceed the highest load pressure + ~15–20 bar + line losses.
Q8: Common faults & causes?
Flow varies with load pressure: compensator spool stuck (contamination) — check oil filtration (ISO 4406 18/16/13 or better); or insufficient ΔP across compensator.
No flow / very low at max knob: valve installed backwards, or compensator/spool jammed.
Cannot reach set flow / unstable: partially clogged orifice, cold-start high viscosity — flush system.
Excessive heat: normal for flow controls — P_drop × Q = heat; ensure supply pressure isn't unnecessarily high above load requirement.
Q9: Need an actual hydraulic lock (pilot-operated check)?
You need Rexroth SV… (cartridge pilot check) or SL… (sandwich dual pilot check) — not the 2FRM series. Let me know if you need that part number.
Q10: Fluid & seal compatibility?
NBR seals = mineral oil (HL/HLP) & HFC (water-glycol). For HEES/HETG biodegradable oils or HFD phosphate ester → specify FKM (Viton) seal variant.
Người liên hệ: Mr. liyun
Tel: +8615280488899
Vietnamese
