FLOW CONTROLS

FD16-42 Flow Divider/Combiner, w/Anti-Stall Feature

DESCRIPTION

A screw-in, cartridge-style, spool-type ﬂ ow divider/combiner. Standard ﬂ ow dividing/

combining ratios are maintained regardless of system operating pressure conditions.

OPERATION

In the dividing mode, the FD16-42 will divert input ﬂ ow from port ➂ to ports ➁ and ➃,

based on the ratio speciﬁ ed, regardless of operating pressure.

The cartridge will combine input ﬂ ows from both

➁ and ➃.

The FD16-42 is designed to maintain a ﬂ ow path to both combining ports

➁ and ➃

when one port is “free-wheeling.” This feature keeps hydraulic (parallel) motor drive

circuits from stalling in the combining mode only.

FEATURES

• Hardened parts for long life.

• Quiet, modulated response.

• Industry common cavity.

RATINGS

Operating Pressure: 240 bar (3500 psi)

Flow: See Performance Chart

Flow Options:

Input Flow: 98.4 lpm (26 gpm); Ratio: 50:50; Model Code: 44

Input Flow: 151.4 lpm (40 gpm); Ratio: 50:50; Model Code: 66

Other ratio options available; consult factory.

Standard Compensator Bias Spring: 2.07 bar (30 psid)

Flow Accuracy: 10% from 33-100% of rated ﬂ ow

Temperature: -40 to 120°C

Filtration: See page 9.010.1

Fluids: Mineral-based or synthetics with lubricating properties at viscosities of

7.4 to 420 cSt (50 to 2000 sus); See Temperature and Oil Viscosity, page 9.060.1

Installation: No restrictions; See page 9.020.1

Note that standard 16 size 4-way bodies should not be used with this product.

See page 8.016.1 for special ﬂ ow divider bodies.

Cavity: VC16-4; See page 9.116.2

Cavity Tool: CT16-4XX; See page 8.600.1

Seal Kit: SK16-4X-MMM; See page 8.650.1

USASI/ISO:

SYMBOLS

5.626.1

PERFORMANCE (Cartridge Only)

34.5/500

27.6/400

20.7/300

13.8/200

6.9/100

37.9

75.8

113.6

FLOW lpm/gpm

PRESSURE DROP bar/psi

to or : 44 Type — ;

66 Type - - -

32 cSt/150 ssu oil at 40°C

151.4

41.4/600

➂➁➃

Note: This model will be superseded by the new FDxx-45 models, which

incorporate the features of the FDxx-40, FDxx-41 and FDxx-42 series

valves in one product. OEM’s are encouraged to consider the newer,

more robust and versatile FDxx-45 models for new applications:

FD50-45; see page 5.632.1

FD52-45; see page 5.634.1

FD56-45; see page 5.636.1

HYDRAFORCE

.com

Blue rectangles are links to other catalog pages.

Cartridge: Weight: 0.36 kg. (0.80 lbs.)

Steel with hardened work surfaces.

Zinc-plated exposed surfaces.

Buna N O-rings and polyester

elastomer back-ups standard.

Special Ported Body: Weight: 1.5 kg.

(3.3 lbs.) Anodized high-strength

6061 T6 aluminum alloy, rated to

207 bar (3000 psi). Ductile iron

bodies available; dimensions

may differ. See page 8.016.1

MATERIALS

TO ORDER

FD16-42 - __ __ __ - __ - __ __

Special Ported Bodies

Cartridge Only 0

SAE 12 (All Ports) 12T

SAE 12

➁ & ➃;

SAE 16

➂ 16D

SAE 16 (All Ports) 16T

3/4 in. BSP* (All Ports) 6B

3/4 in. BSP*

➁ & ➃;

1 in. BSP*

➂ 7B

1 in. BSP* (All Ports) 8B

*BSP Body; U.K. Mfr. Only

Dividing/Combining Ratio

44 50:50 rated @ 98.4 lpm

(26 gpm) input

66 50:50 rated @ 151.4 lpm

(40 gpm) input

FD16-42

5.626.2

NOTE: Additional ratios and/or input

ﬂ ow sizings available for OEM

applications. Consult factory.

Seals

N Buna N (Std.)

V Fluorocarbon

NOTE: Standard 16-size 4-way bodies should

not be used for ﬂ ow dividers. See special ﬂ ow

divider bodies, page 8.016.1.

DIMENSIONS

HYDRAFORCE

.com

Blue rectangles are links to other catalog pages.