[JRV-SF11,21] Reducing Valve Old Model: [RV-A,B] _减压阀_JOKWANG_阀门产品

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[JRV-SF11,21] Reducing Valve Old Model: [RV-A,B]

Various applications for construction equipment, various types of plant equipments and freezing machine field..

详细描述

■ FEATURES

Various applications for construction equipment, various types of plant equipments and freezing machine field.
1. Because this valve is a pilot direct operated type, it does not need auxiliary equipment such as an electric and a compressed air. Its capacity is larger than direct operating valve.

2. Pressure adjusting range is wide and pressure adjusting range is easy. (JRV-SF11: 0.35~8kgf/㎠{0.035 ~ 0.8MPa}. JRV-SF21: 0.35~16kgf/㎠{0.035~1.6MPa})

3. This valve has a built-in filter and the filter prevents mal-functions of valve due to the scale and impurities and shows an excellent performance

■ MATERIAL

NO	PART NAME	JRV-SF11	JRV-SF21
1	Body	CAST IRON	CAST CARBON STEEL
2	Top Cover	CAST IRON	CAST CARBON STEEL
3	Main Valve	STAINLESS STEEL	STAINLESS STEEL
4	Main Valve Seat	STAINLESS STEEL	STAINLESS STEEL
5	Piston	CAST BRONZE	CAST BRONZE or CAST IRON
6	Cylinder	CAST BRONZE	CAST ST.ST
7	Pilot Valve	STAINLESS STEEL	STAINLESS STEEL
8	Pilot Valve Seat	STAINLESS STEEL	STAINLESS STEEL
9	Diaphragm	STAINLESS STEEL	STAINLESS STEEL
10	Adjust Screw	BRASS	BRASS
11	Adjust Spring	CARBON STEEL	CARBON STEEL
12	Spring Case	CAST IRON	CAST IRON
1.INLET PRESSURE		2~10 kgf/㎠{0.2~1.0MPa}	2~20 kgf/㎠{0.2~2.0MPa}
2.OUTLET PRESSURE		0.35~1.0, 1.0~8.0 kgf/㎠ {0.035~0.1,0.1~0.8MPa}	1.0~16.0 kgf/㎠ {0.1~1.6MPa}
3.MAX REDUCING RATIO		10 : 1	10 : 1
4.WORKING TEMP		Max 220 ℃	Max 300 ℃
5.WORKING FLUID		S	S
6.CONNECION		10KFF Flanged	20KRF Flanged

Fluid symbol
1. S : Steam

* NOTE
1. Please adjust the secondary pressure must be less than 80% of primary pressure
2. Minimum pressure differential across the disc.: 0.7kgf/㎠ {0.07MPa}
3. Leakage allowance: Less than 0.05% of rated flow
4. Hydrostatic test pressure: JRV-SF11: 15kgf/㎠{1.5MPa}, JRV-SF21: 30kgf/㎠ {3.0MPa}

■ Dimensions (Unit: mm)

MODEL	PART	15A	20A	25A	32A	40A	50A	65A	80A	100A	125A	150A	200A
JRV-SF11	L	165	165	170	185	200	220	250	290	340	390	420	550
	H1	75	75	75	85	85	92	110	130	155	180	195	250
	H	270	270	270	275	275	283	310	350	370	500	535	615
JRV-SF21	L	200	200	200	225	230	250	280	310	320	350	395	560
	H1	83	83	83	108	108	113	123	137	140	148	181	250
	H	292	292	292	307	301	325	366	445	445	459	466	620

*ANSI flanges are available upon request.

*Above product may change specification without any notice.