Kaifeng Ruifa & Medium Pressure Valve Co., Ltd.

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We manufacture more than a thousand specifications of over ten series of products, including safety valves, power station valves, steam extraction check valves, gate valves, globe valves, check valves, hard-sealed ball valves, all-welded ball valves, ball valves, butterfly valves, and other models and specifications.

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ZFA46

Pound-type pilot-operated safety valve

ZFA46 Series Pound-Rated Pilot-Operated Safety Valve

Product Classification:

Safety valve

Key words:

Online Message

ruifa1988@vip.sina.com

Main Technical Parameters of Safety Valve

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	D=10 71mm²	Inlet	Outlet	L	L1	≈H
ZFA46	1 D2	150	150	114	105	400
	1 D2	300	150	114	111	400
	1 D2	600	150	114	111	400
	1 D2	900	300	121	125	430
	1 D2	1500	300	121	125	500
	1 D2	2500	300	121	125	500
	1½ D2	150	150	121	124	400
	1½ D2	300	150	121	124	400
	1½ D2	600	150	121	124	400
	1½ D2	900	300	140	149	430
	1½ D2	1500	300	140	149	500
	1½ D3	2500	300	140	149	500

Throat Diameter E Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	E=13 126mm²	Inlet	Outlet	L	L1	≈H
ZFA46	1 E2	150	150	114	105	400
	1 E2	300	150	114	111	400
	1 E2	600	150	114	111	400
	1 E2	900	300	121	125	430
	1 E2	1500	300	121	125	500
	1 E2	2500	300	121	125	500
	1½ E2	150	150	121	124	400
	1½ E2	300	150	121	124	400
	1½ E2	600	150	121	124	400
	1½ E2	900	300	140	149	430
	1½ E2	1500	300	140	149	500
	1½ E3	2500	300	140	149	500

Throat Diameter F Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	F=16 198mm²	Inlet	Outlet	L	L1	≈H
ZFA46	1 F2	150	150	114	105	400
	1 F2	300	150	114	111	400
	1 F2	600	150	114	111	400
	1 F2	900	300	121	125	430
	1 F2	1500	300	121	125	500
	1 F2	2500	300	121	125	500
	1½ F2	150	150	121	124	400
	1½ F2	300	150	121	124	400
	1½ F2	600	150	121	124	400
	1½ F2	900	300	140	149	430
	1½ F2	1500	300	140	149	500
	1½ F2	2500	300	140	149	500

Throat Diameter G Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	F=20 324mm²	Inlet	Outlet	L	L1	≈H
ZFA46	1½ G3	150	150	124	130	420
	1½ G3	300	150	124	130	420
	1½ G3	600	150	124	130	420
	1½ G3	900	300	171	162	530
	1½ G3	1500	300	171	162	550
	1½ G3	2500	300	171	162	580
	2 G3	150	150	124	137	420
	2 G3	300	150	124	137	420
	2 G3	600	150	124	137	420
	2 G3	900	300	171	167	530
	2 G3	1500	300	171	167	550
	2 G3	2500	300	171	178	620

Throat Diameter H Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	H=26 506mm²	Inlet	Outlet	L	L1	≈H
ZFA46	1½ H3	150	150	124	130	420
	1½ H3	300	150	124	130	420
	1½ H3	600	150	124	130	420
	1½ H3	900	300	171	162	530
	1½ H3	1500	300	171	162	550
	1½ H3	2500	300	171	162	580
	2 H3	150	150	124	137	420
	2 H3	300	150	124	137	420
	2 H3	600	150	124	137	420
	2 H3	900	300	171	167	530
	2 H3	1500	300	171	167	550
	2 H3	2500	300	171	178	620

Throat Diameter J Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	J=33 830mm²	Inlet	Outlet	L	L1	≈H
ZFA46	2 J3	150	150	124	137	420
	2 J3	300	150	124	137	420
	2 J3	600	150	124	137	450
	2 J3	900	300	171	167	500
	2 J3	1500	300	171	167	530
	2 J3	2500	300	171	178	620
	3 J4	150	150	162	156	420
	3 J4	300	150	162	156	420
	3 J4	600	150	162	162	450
	3 J4	900	300	181	191	500
	3 J4	1500	300	181	191	530

Throat Diameter K Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	K=40 1186mm²	Inlet	Outlet	L	L1	≈H
ZFA46	3 K4	150	150	162	156	420
	3 K4	300	150	162	156	420
	3 K4	600	150	160	162	450
	3 K4	900	300	181	191	500
	3 K4	1500	300	181	191	530

Throat Diameter L Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	L=50 1841mm²	Inlet	Outlet	L	L1	≈H
ZFA46	3 L4	150	150	162	156	420
	3 L4	300	150	162	156	420
	3 L4	600	150	162	162	450
	3 L4	900	300	181	191	530
	3 L4	1500	300	181	191	580
	3 L4	2500	300	194	191	650
	4 L6	150	150	210	197	450
	4 L6	300	150	210	197	450
	4 L6	600	150	210	197	530
	4 L6	900	300	233	249	530
	4 L6	1500	300	233	249	650

Throat Diameter M Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	M=55 2323mm²	Inlet	Outlet	L	L1	≈H
ZFA46	4 M6	150	150	210	197	450
	4 M6	300	150	210	197	450
	4 M6	600	150	210	197	530
	4 M6	900	300	233	249	530
	4 M6	1500	300	233	249	650

Throat Diameter N Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	N=60 2800mm²	Inlet	Outlet	L	L1	≈H
ZFA46	4 N6	150	150	210	197	450
	4 N6	300	150	210	197	450
	4 N6	600	150	210	197	530
	4 N6	900	300	233	249	530
	4 N6	1500	300	233	249	650

Throat Diameter P Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	P=72 4116mm²	Inlet	Outlet	L	L1	≈H
ZFA46	4 P6	150	150	210	197	420
	4 P6	300	150	210	197	420
	4 P6	600	150	210	197	450
	4 P6	600	300	233	249	450
	4 P6	900	300	233	249	530
	4 P6	1500	300	233	249	580
	4 P6	1500	600	264	249	780

Throat Diameter Q Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	Q=96 7129mm²	Inlet	Outlet	L	L1	≈H
ZFA46	6 Q8	150	150	241	240	500
	6 Q8	300	150	241	240	500
	6 Q8	600	150	241	240	550
	6 Q8	600	300	265	246	550

Throat Diameter R Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	R=115 10323mm²	Inlet	Outlet	L	L1	≈H
ZFA46	6 R8	150	150	241	240	500
	6 R8	300	150	241	240	500
	6 R8	600	150	241	240	550
	6 R8	600	300	265	246	550

Throat Diameter T Specification Size

Model	Specification	Flange Rating (Lb)		External Dimensions (mm)
Model	T=146 16774mm²	Inlet	Outlet	L	L1	≈H
ZFA46	8 T10	150	150	279	276	550
	8 T10	300	150	279	276	550
	8 T10	600	150	279	297	580
	8 T10	600	300	305	297	580

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Recommend Products

At present, it can produce more than a dozen series of more than 1,000 specifications of safety valves, power station valves, extraction check valves, gate valves, ball valves, check valves, butterfly valves, drain valves, balance valves, and regulating valves of different types and specifications.

Double spring safety valve

A37H/38Y/43H-16C

This valve is suitable for equipment or pipelines with steam, water, and other media operating at temperatures ≤350℃, serving as a pressure relief device. The connection flange conforms to the JB/T 79 standard.

Spring-loaded safety valve

A42Y-160/320;A42Y-160P/320P

The A42Y-C type is suitable for equipment or pipelines with air, petroleum gas, and other media where the operating temperature is ≤300℃.
The A42Y-P/R type is suitable for equipment or pipelines with corrosive gaseous media where the operating temperature is ≤200℃, serving as a pressure relief device.
Connecting flanges conform to JB/T 79 standard.

Flanged Gate Valve

PN2.5-4.0MPa

A straight-through stop valve is a common shut-off valve with characteristics such as a valve seat surface that is not easily worn or scratched; good sealing, long life; good process performance and a wide applicable pressure and temperature range. The closing member moves along the center line of the valve seat, and the change in the valve seat passage is directly proportional to the stroke of the valve disc, with a small valve disc stroke and short opening and closing time. The valve has a small height, making it easy to install and operate in engineering and use. It is generally not used to regulate flow. Main drive methods include: manual, electric, pneumatic, and hydraulic.

Diaphragm balanced safety valve

WA42Y-16C/25/40 WA42Y-16P/25P/40P

This valve is suitable for equipment or pipelines with operating temperatures ≤200℃, unstable back pressure, or toxic and corrosive media, or occasions with high back pressure, acting as a pressure relief device.
Connecting flanges are in accordance with JB/T79 standard.

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ruifa1988@vip.sina.com

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