NFFD-LIN – Sun Hydraulics Fully adjustable needle valve
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Part number: NFFDLIN · NFFD-LIN · NFFD LIN
Fully adjustable needle valve. Cavity T-18A, capacity 140 gpm (.85 inch) (530 L/min. (21,6 mm)). Genuine Sun Hydraulics cartridge — MultiFlow is an authorized distributor.
NFFD-LIN overview
NFFDLIN (NFFD-LIN, NFFD LIN) is a Sun Hydraulics Sun Hydraulics Fully adjustable needle valve, rated 140 gpm (.85 inch) (530 L/min. (21,6 mm)) and installed in cavity T-18A. MultiFlow supplies genuine Sun Hydraulics cartridges in the UAE, GCC and India — use Add to Enquiry above for availability and a quotation.
Ordering codes
Pick the code that matches the material and finish you need. Add it to your enquiry above, or tap a code to select it.
| NFFDLIN/AP | Stainless Steel, PassivatedStainless Steel, Passivated |
|---|---|
| NFFDLIN/LH | Mild Steel, Zinc-NickelMild Steel, Zinc-Nickel |
| NFFDLIN | Standard Material/CoatingStandard Material/Coating |
Specifications
| Cavity | T-18A |
|---|---|
| Series | 4 |
| Capacity | 140 gpm (.85 inch) (530 L/min. (21,6 mm)) |
| Maximum Operating Pressure | 5000 psi (350 bar) |
| Adjustment - No. of CCW Turns from Fully Closed to Fully Open | 5 |
| Valve Hex Size | 1 5/8 in. (41,3 mm) |
| Valve Installation Torque | 350 - 375 lbf ft (474 - 508 Nm) |
| Adjustment Screw Internal Hex Size | 5/32 in. (4 mm) |
| Locknut Hex Size | 9/16 in. (15 mm) |
| Locknut Torque | 80 - 90 lbf in. (9 - 10 Nm) |
| Model Weight | 3.00 lb (1,35 kg) |
| Seal kit - Cartridge | Viton: 990018006 |
How to read NFFDLIN
Sun part numbers are the model followed by one code per option. Hyphens, slashes and spaces are only dividers, so NFFDLIN, NFFD-LIN, NFFD LIN are the same part.
| Model | NFFD — Sun Hydraulics Fully adjustable needle valve |
|---|---|
| Control | L — Standard Screw Adjustment |
| Maximum Orifice Diameter | I — .85 in. (21,6 mm) |
| Seal Material | N — Buna-N |
| Material / coating | Add /AP (stainless steel, passivated) or /LH (mild steel, zinc-nickel) to the end; no suffix is the standard finish. |
Control options
- H — Calibrated Handknob with Detent Lock
- K — Handknob
- L — Standard Screw Adjustment
- R — Capped Screw Adjustment
- Y — Tri-Grip Handknob
Maximum Orifice Diameter options
- I — .85 in. (21,6 mm)
Seal Material options
- N — Buna-N
- V — Viton
- E — EPDM
Material/coating options
- /AP — Stainless Steel, Passivated
- /LH — Mild Steel, Zinc-Nickel
- — Standard Material/Coating
Manifold & standard assemblies
Sun manifolds for cavity T-18A (102)
- LA2 Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LA2 — request assembly
- LA4 Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LA4 — request assembly
- LA5 Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LA5 — request assembly
- LA6 Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LA6 — request assembly
- LA7 Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LA7 — request assembly
- LA8 Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LA8 — request assembly
- LA9 Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LA9 — request assembly
- LAD Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LAD — request assembly
- LAE Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LAE — request assembly
- LAF Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LAF — request assembly
- LAL Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LAL — request assembly
- LAM Sun Hydraulics Ninety degree with gauge port Line mount manifoldNFFDLIN-LAM — request assembly
Technical features
- All 2-port flow control cartridges are physically and functionally interchangeable (i.e. same flow path, same cavity for a given frame size). However, cartridge extension dimensions from the mounting surface may vary.
- Because needle valves are non-compensating devices, the fixed orifice size will regulate flow through the valve in proportion to the square root of the pressure differential across ports 1 and 2.
- A balanced adjustment mechanism allows for easy adjustment even at high pressures.
- The sharp-edged orifice design minimizes flow variations due to viscosity changes.
- The flow path through this valve is bi-directional. The preferred path is port 1 to 2, to allow interchangeability with other flow controls.
- There is no leakage when the adjustment mechanism is turned to the shut-off position.
- Cartridges configured with EPDM seals are for use in systems with phosphate ester fluids. Exposure to petroleum based fluids, greases and lubricants will damage the seals.
Drawings, symbol & performance curves
Downloads
Datasheet
Technical reference sheets
- 999-901-334 (PDF 344 KB)
- FloatingStyleScrewInCartridge2 (PDF 1 MB)
- TT_US_Cavity-New (PDF 522 KB)
- TT_US_check-flow1-New (PDF 537 KB)
CAD files
Frequently asked questions
Is NFFDLIN the same as NFFD-LIN?
Yes. Sun Hydraulics writes this part number as NFFDLIN. It is the model NFFD followed by the configuration code; hyphens, slashes and spaces are only dividers, so NFFDLIN, NFFD-LIN, NFFD LIN all refer to the same product.
Do you supply NFFDLIN in the UAE, GCC and India?
Yes. MultiFlow supplies genuine Sun Hydraulics cartridges, including NFFDLIN, to customers in the UAE, the wider GCC and India. Use Add to Enquiry on this page for availability, lead time and a quotation.
Can I get the datasheet and CAD files?
Yes. The datasheet, technical reference sheets and CAD files (DXF, DWG, STP) are listed in the Downloads section of this page.
How big is a drop of hydraulic oil?
There are exactly 250 Sun drops in a cubic inch or 15 in a cc.
What parts of the Sun cartridge valve are field serviceable?
Only external seals are serviceable. Sun offers replacement seal kits for all cartridge models. The applicable kit part number can be found in the product page's Technical Data table or by using our Cartridge Seal Kit search function located under Accessories. Please note: Converting the external seals from one material to another does not ensure fluid compatibility with that material due to the existence of internal seals within the cartridge.
Manufacturer reference: https://www.sunhydraulics.com/model/NFFD
