Hydraulic Valves

FLD Flow Divider Valve

It is used to form a complete set of model BZZ steering control units. Under such conditions of variety oil volume or/and different pressure in steering system, model FLD can provide constant flow for the steering unit so as to meet the requirement of hydraulic steering performance of vehicle. It can not only control steering system, but also help pump to divide flow so that to reduce cost and simplify system design.

Order Code:

FLD	—	F	囗	囗	—	囗	囗
①		②	③	④		⑤	⑥

①: Flow divider valves;
②: Max. Input pressure 20MPa;
③: Rated flow;
④: No mark: dividing flow;
      H: Constant flow;
      W: Non-relief valve dividing flow;
⑤: Relief Valve Pressure Settings;
⑥: Ports Code.

Function Code:

Dividing flow

Constant flow

Non-relief valve dividing flow

Main Specifications:

Type	Rated Flow (L/min)	Max. input flow (L/min)	Max. input pressure (MPa)	Adjusting pressure range (MPa)	Variation of flow (%)	Fit with steering unit
FLD–F4 *	4	45	20	6.3～16	15	BZZ1–E50
FLD–F5 *	5					BZZ1–E63
FLD–F6 *	6					BZZ1–E80
FLD–F7.5 *	7.5					BZZ1–E100
FLD–F9.5 *	9.5					BZZ1–E125
FLD–F12 *	12					BZZ1–E160
FLD–F15 *	15					BZZ1–E200
FLD–F19 *	19	60			20	BZZ1–E250
FLD–F21 *	21	75				BZZ1–E280
FLD–F24 *	24	75				BZZ1–E315
FLD–F30 *	30	90				BZZ1–E400
FLD–F38 *	38	120				BZZ1–E500
FLD–F48 *	48					BZZ1–E630
FLD–F60 *	60	200				BZZ1–E800
FLD–F75 *	75					BZZ1–E1000

Mounting Data:

FLD–F4~15:

FLD–F4~15H:

FLD–F4~15W:

FLD–F19~30:

FLD–F19~30H:

FLD–F19~30W:

FLD–F38~75W:

Port threads:
FLD4~15
FLD4~15H
FLD4~15W:

Code	port P	ports A,(B),(T)
omit	M24×1.5 Depth16	M20×1.5 Depth16
D	M24×1.5 O-ring Depth16	M20×1.5 O-ring Depth16
C	7/8-14UNF O-ring Depth16	3/4-16UNF O-ring Depth16

FLD19~30
FLD19~30H
FLD19~30W:

Code	port P	ports A,(B),(T)
omit	M27×1.5 Depth16	M24×1.5 Depth16
D	M27×1.5 O-ring Depth16	M24×1.5 O-ring Depth16
C	1 1/16-16UN O-ring Depth16	7/8-14UNF O-ring Depth16

FLD38~75W:

Code	port P	ports A,(B),(T)
omit	M27×1.5 Depth16	M27×1.5 Depth16
D	M27×1.5 O-ring Depth16	M27×1.5 O-ring Depth16
C	1 1/16-16UN O-ring Depth16	1 1/16-16UN O-ring Depth16

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YXL Priority Valve

The priority valve is used with model BZZ5 load sensing steering control unit or with model TLF1 coaxial flow amplifying steering unit, to form a load sensing power steering system, provides metered priority flow to the SCU.

Order Code:

囗	YXL	—	F	囗	囗	—	囗	囗	囗	—	囗
①	②		③	④	⑤		⑥	⑦	⑧		⑨

①: D: Dynamic signal; Omit: Static signal;
②: Priority valve;
③: Max. Input pressure 20MPa;
④: Max. Input flow; 
⑤: L: Thread connection; F: Flange connection;
⑥: Relief Valve Pressure Settings;
⑦: N: Internal control; W: Outer control;
⑧: Control pressure;
⑨: Ports Code.

Function Code:

Dynamic Signal

Static Signal

Main Specifications:

Type	Control pressure (bar)	Max. input flow (L/min)	Max. input pressure (MPa)	Relief valve pressure range (MPa)
囗YXL–F40L–囗囗4.5-囗	4.5	40	20	6.3～17.5 adjusted by customer's requirement
囗YXL–F40L–囗囗7-囗	7	40
囗YXL–F40L–囗囗10.5-囗	10.5	40
囗YXL–F80L–囗囗4.5-囗	4.5	80
囗YXL–F80L–囗囗7-囗	7	80
囗YXL–F80L–囗囗10.5-囗	10.5	80
囗YXL–F160L–囗囗4.5-囗	4.5	160
囗YXL–F160L–囗囗7-囗	7	160
囗YXL–F160L–囗囗10.5-囗	10.5	160
囗YXL–F250囗–囗囗7-囗	7	250
囗YXL–F250囗–囗囗10.5-囗	10.5	250

Note: For 囗, please see the Order Code above for reference.

Mounting Data:
YXL–F40L
DYXL-F40L
YXL-F80L
DYXL-F80L:

Code	Ports P,EF		Port CF		Ports Ls,T
	Thread	Depth (mm)	Thread	Depth (mm)	Thread	Depth (mm)
A	M22x1.5	16	M18x1.5	16	M12x1.5	14
B	G1/2		G3/8		G1/4
C	7/8-14UNF O-ring		3/4-16UNF O-ring		7/16-20UNF O-ring
D	M22x1.5 O-ring		M18x1.5 O-ring		M12x1.5 O-ring
E	G1/2 O-ring		G3/8 O-ring		G1/4 O-ring

YXL–F160L:

Code	Ports P,EF		Port CF		Ports Ls,T
	Thread	Depth (mm)	Thread	Depth (mm)	Thread	Depth (mm)
A	M27x2	22	M22x1.5	18	M12x1.5	14
B	G3/4		G1/2		G1/4
C	1 1/16-12UN O-ring		3/4-16UNF O-ring		7/16-20UNF O-ring
D	M27x2 O-ring		M22x1.5 O-ring		M12x1.5 O-ring
E	G3/4 O-ring		G1/2 O-ring		G1/4 O-ring

DYXL-F160L:

Code	Ports P,EF		Port CF		Ports Ls,T
	Thread	Depth (mm)	Thread	Depth (mm)	Thread	Depth (mm)
A	M27x2	22	M22x1.5	18	M12x1.5	14
B	G3/4		G1/2		G1/4
C	1 1/16-12UN O-ring		3/4-16UNF O-ring		7/16-20UNF O-ring
D	M27x2 O-ring		M22x1.5 O-ring		M12x1.5 O-ring
E	G3/4 O-ring		G1/2 O-ring		G1/4 O-ring

YXL–F250F
DYXL–F250F:

Code	Ports P,EF	Port CF		Ports LS,T
	Aperture Size	Thread	Depth (mm)	Thread	Depth (mm)
A	Ф 28	M33×2	22	M12×1.5	14
D	Ф 28	M33×2 O-ring	22	M12×1.5 O-ring	14

YXL–F250L
DYXL–F250L:

Code	Ports P,EF		Port CF		Ports LS,T
	Thread	Depth(mm)	Thread	Depth(mm)	Thread	Depth(mm)
A	M42×2	22	M33×2	22	M12×1.5	14
D	M42×2 O-ring	22	M33×2 O-ring	22	M12×1.5 O-ring	14

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FK Combinatory Valve Blocks

FKA/FKB/FKC/FKAR/FKBR crossover relief valves and model FKA2/FKB2/FKC2 cushion crossover anticavitation relief valves. Being a combinatory valve, it can bolt directly to the port face of model BZZ steering unit to form a complete set, contains dual shockproof valves to protect the steering unit, hoses and steering cylinder form excessive system pressure due to sudden shock forces at the vehicle wheels and prevent such forces from being transmitted to the steering wheel, it also contains suction valves to help prevent cavitation at the low pressure side of the cylinder, an inlet check valve prevents reversed flow load circuit, a relief valve is the protection of the pump.

Order Code:

FK	囗	囗	—	囗	囗	囗	囗
①	②	③		④	⑤	⑥	⑦

①: Combinatory valve block;
②:
      AR: Contains inlet check valve, relief valve, shock valves and suction valves;
      A: Contains inlet check valve, relief valve and shock valves;
      BR: Contains inlet check valve, shock valves and suction valves;
      B: Contains inlet check valve and shock valves;
      C: Contains inlet check valve and relief valve;
③: 
      No mark: crossover relief valve;
      2: Cushion crossover anticavitation relief valve;
④: Relief Valve Pressure Settings;
⑤: Flow;
⑥: Shook Valves Pressure Settings;
⑦: Ports Code.

Function Code:

Main Specifications:

Type	Rated flow (L/min)	Inlet check valve open pressure (MPa)	Relief valve pressure range (MPa)	Shock valves pressure range (MPa)	Suction valves open pressure (MPa)
FKAR	30/60	0.1	2.5 ～16	6.3 ～22	0.05
FKA					----
FKA2					----
FKBR	30			6.3 ～22	0.05
FKB					----
FKB2					----
FKC	30/60		2.5 ～16		----
FKC2

Note: For 囗, please see the Order Code above for reference.

Mounting Data:

Port threads:

Type	Code	Ports P,T,A,B
FK Type Valves	omit	M20×1.5
	A	M18×1.5
	B	G1/2
	C	3/4-16UNF O-ring
	D	M20×1.5 O-ring
	E	M18×1.5 O-ring
	R	P,T：M20×1.5
		A,B：M18×1.5
	S	P,T：M20×1.5 O-ring
		A,B：M18×1.5 O-ring
	G	M22×1.5
	Q	M22×1.5 O-ring
	U	G1/2 O-ring
FK Type Parallel Port Valves	omit	M18×1.5
	A	M20×1.5
	B	G1/2
	C	3/4-16UNF O-ring
	D	M20×1.5 O-ring
	E	M18×1.5 O-ring
	U	G1/2 O-ring