Reducing valve for water Yoshitake GD-200H

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Manufacturer: Yoshitake (Japan)
Material: ductile iron, stainless steel, NBR
Action type: direct action

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Specifications
Description
Dimensions and weight
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Model		GD-200H
Application		Cold and hot water, oil (kerosene, heavy oil products A and B), air, other non-hazardous liquids
Inlet pressure		2.0 MPa or less
Low pressure		15A-50A (A) 0.05-0.25 MPa (B) 0.26-0.7 MPa (C) 0.5-1.0 MPa 65A-80A (A) 0.05-0.25 MPa (V) 0.26-0.7 MPa (C) 0.5-0.9 MPa 100A-150A (A) 0.05-0.25 MPa (B) 0.26-0.5 MPa (C) 0.5-0.75 MPa
Min. differential pressure		0.05 MPa
Max. coeff. pressure reduction		10: 1
Minimum adjustable flow		Water: 5 l / min Air: 10 m³ / hour (standard conditions)
Working temperature		5-80 ° C
Fluid viscosity		No more than 600 cSt
Material	Frame	Malleable cast iron
	Valve seat	Stainless steel
	Valve plug	NBR
	Membrane	NBR
	Compound	Flange connection EN 1092 PN10 / 16
Internal processing case surface		Electrodeposition coating

Available with FPM components (except GD-200H (C) sizes 65A to 150A).
Available with pressure gauge.
GD-200HS available for rinse water.

Liquid flow table

P1 (MPa)	P2 (MPa)	15A	20A	25A			32A		40A	50A	65A		80A		100A		125A		150A
2.0	0.2-1.0	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
1.9	0.19-1.0	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
1.8	0.18-1.0	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
1.7	0.17-1.0	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
1.6	0.16-1.0	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
1.5	0.15-1.0	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
1.4	0.14-0.9	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
	1	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		130.0	187.1
1.3	0.15-0.8	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
	0.9	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		130.0	187.1
	1	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		112.5	162.1
1.2	0.12-0.7	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
	0.8	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		130.0	187.1
	0.9	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		112.5	162.1
	1	2.3	4.0		6.1	9.8		14.7		19.6		34.3		44.1		83.3		91.9	132.3
1.1	0.11-0.6	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
	0.7	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		130.0	187.1
	0.8	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		112.5	162.1
	0.9	2.3	4.0		6.1	9.8		14.7		19.6		34.3		44.1		83.3		91.9	132.3
	1	2.2	3.5		4.3	6.9		10.4		13.9		24.3		31.2		58.9		65.0	93.6
1	0.1-0.5	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
	0.6	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		130.0	187.1
	0.7	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		112.5	162.1
	0.8	2.3	4.0		6.1	9.8		14.7		19.6		34.3		44.1		83.3		91.9	132.3
	0.9	2.2	3.5		4.3	6.9		10.4		13.9		24.3		31.2		58.9		65.0	93.6
0.9	0.09-0.4	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
	0.5	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		130.0	187.1
	0.6	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		112.5	162.1
	0.7	2.3	4.0		6.1	9.8		14.7		19.6		34.3		44.1		83.3		91.9	132.3
	0.8	2.2	3.5		4.3	6.9		10.4		13.9		24.3		31.2		58.9		65.0	93.6
0.8	0.08-0.3	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
	0.4	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		130.0	187.1
	0.5	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		112.5	162.1
	0.6	2.3	4.0		6.1	9.8		14.7		19.6		34.3		44.1		83.3		91.9	132.3
	0.7	2.2	3.5		4.3	6.9		10.4		13.9		24.3		31.2		58.9		65.0	93.6
0.7	0.07-0.2	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
	0.3	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		130.0	187.1
	0.4	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		112.5	162.1
	0.5	2.3	4.0		6.1	9.8		14.7		19.6		34.3		44.1		83.3		91.9	132.3
	0.6	2.2	3.5		4.3	6.9		10.4		13.9		24.3		31.2		58.9		65.0	93.6
0.6	0.1	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		145.3	209.2
	0.2	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		130.0	187.1
	0.3	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		112.5	162.1
	0.4	2.3	4.0		6.1	9.8		14.7		19.6		34.3		44.1		83.3		91.9	132.3
	0.5	2.2	3.5		4.3	6.9		10.4		13.9		24.3		31.2		58.9		65.0	93.6
0.5	0.1	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		130.0	187.1
	0.2	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		112.5	162.1
	0.3	2.3	4.0		6.1	9.8		14.7		19.6		34.3		44.1		83.3		91.9	132.3
	0.4	2.2	3.5		4.3	6.9		10.4		13.9		24.3		31.2		58.9		65.0	93.6
0.4	0.1	2.3	4.0		6.4	10.0		15.4		24.0		45.4		54.0		93.2		112.5	162.1
	0.2	2.3	4.0		6.1	9.8		14.7		19.6		34.3		44.1		83.3		91.9	132.3
	0.3	2.2	3.5		4.3	6.9		10.4		13.9		24.3		31.2		58.9		65.0	93.6
0.3	0.1	2.3	4.0		6.1	9.8		14.7		19.6		34.3		44.1		83.3		91.9	132.3
	0.2	2.2	3.5		4.3	6.9		10.4		13.9		24.3		31.2		58.9		65.0	93.6
0.2	0.1	2.2	3.5		4.3	6.9		10.4		13.9		24.3		31.2		58.9		65.0	93.6
0.1	0.05	1.5	2.5		3.1	4.9		7.4		9.8		17.2		22.1		41.7		45.9	66.2

The pressure balanced design of the valve allows the reduced pressure to be kept constant without being influenced by the inlet pressure.
High wear resistance and durability of the valve seat made of stainless steel.
The valve top is easily removable for inspection and maintenance.
A rubber stopper prevents leakage when the valve is closed.
The GD-200C is highly corrosion resistant due to the nylon coated inside and outside of the case.
Installation in horizontal or vertical pipelines is possible. (For sizes over 100A, installation is carried out on a horizontal pipeline in the upper position).

GD-200H

Nominal size	L	H	H ₁	The weight
15A	145	310	557	8.2
20A	150	310	57	8.2
25A	150	333	67	10.0
32A	195	397	76	17.3
40A	195	397	76	17.3
50A	195	415	81	19.2
65A	270	555	110	40.0
80A	270	582	125	43,7
100A	308	645	143	70.7
125A	384	849	179	145.0
150A	404	918	204	175.0

Flow characteristics graph

* Minimum adjustable flow rate for aqueous medium: 5 l / min for air: 10 m3 / h, (standard conditions)

Pressure curve

This graph shows the dependence of the reduced pressure when the pressure at the valve inlet changes from 0.15 MPa to 1 MPa at a set reduced pressure of 0.10 MPa.

* Back pressure

Nominal size	Pressure range	Pressure offset
15A-50A	(A), (B)	Range of values 0.05-0.7 MPa within 0.05 MPa
15A-50A	(WITH)	Range of values 0.5-1.0 MPa within 0.11 MPa
65A, 80A	(A), (B)	Range of values 0.05-0.7 MPa within 0.05 MPa
65A, 80A	(WITH)	Range of values 0.5-0.9 MPa within 0.11 MPa
100A	(A), (B)	Range of values 0.05-0.5 MPa within 0.05 MPa
100A	(WITH)	Range of values 0.5-0.75 MPa within 0.11 MPa
125A-150A	(A)	Range of values 0.05-0.25 MPa within 0.05 MPa
	(V)	Range of values 0.26-0.5 MPa within 0.07 MPa
	(WITH)	Range of values 0.5-0.75 MPa within 0.11 MPa

Nominal sizing diagram (for water)

Nominal sizing diagram (for air)

The safety factor should be taken equal to 80-90%.

Delivery

Pickup from a warehouse in Kiev - is free
New Mail - at the rates of the delivery service, at the rates of the delivery service, at the rates of the delivery service
SAT - at the rates of the delivery service
Deliveri - at the rates of the delivery service

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Reducing valve for water Yoshitake GD-200H

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