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Butterfly check valve(Clamp check valve)

The butterfly-type shut-off check valve adopts advanced designs abroad and meets the relevant international standards. These are energy-saving products.

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Hualida Valve

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Introduction

The splint type check valve adopts foreign advanced structural design and conforms to relevant international standards. It is an energy-saving product. This product has good check performance, safety, reliability, and small flow resistance. It is mainly used as a check valve in petroleum, chemical, food, medicine, textile, paper making, water supply and drainage, freezing and energy systems.

Performance specification

Numerical diameter DN(mm)

50(2 inch) to 700(28 inch)

50(20) to 450(18 inches)

Ng pass PN(MPa)

1,0

1,6

Test pressure
(MP)

Housing

1,5

2,4

Seal

1,1

1,76

Applicable temperature °C

-15 to 150

Applicable media

Fresh water, waste water, air, vapors, food, medicine, various oils, acids, etc. D.

Main parts material

Valve body		Valve plate		Rotary Shaft	Rubber seat			Spring
Material Name	Code name	Material Name	Code name	Material Name	Material Name	Code name	Applicable temperature °C	Material Name
Grey Cast Iron	Z	Galvanic cast iron	1	Stainless Steel	Ethylene-propylene rubber	Х 3	From − 46 to 121 Short time From-50 to 150	Stainless Steel
Cast iron with ball-shaped ink	Q	Aluminum Bronze	2		Neoprene rubber	Х 4	From-29 to 99 Short time From-35 to 113
Carbon Steel	With	ZG1Cr13Ni9T Stainless Steel			Nitrile Rubber	Х 5	From-23 to 82 Short time From-23 to 93
Stainless Steel	П	Stainless Steel CF8M	5		Neoprene rubber	X7	-23 to 150
Stainless Steel	П	Stainless Steel CF8M	7		Neoprene rubber	X7	-23 to 150

Table of main sizes and weight

DN		D	D1	Д 2	L	P	T	Weight (Kg)
Mm	Deum
50	2 inch	107	65	43,3	43	28,2	19	1,5
65	25	127	80	60,2	46	36,1	20	2,4
80	3 inches	142	94	66,4	64	43,4	28	3,6
100	4 inches	162	117	90,8	64	52,8	27	5,7
125	5 inch	192	145	116,9	70	65,7	30	7,3
150	6 inch	218	170	144,6	76	78,6	31	9,0
200	8 inch	273	224	198,2	89	104,4	33	17
250	10 inch	328	265	233,7	114	127	50	26
300	12 inch	378	310	283,9	114	148,3	43	42
350	14 inch	438	360	332,9	127	172,4	45	55
400	16 inch	489	410	381,0	140	197,4	52	75
450	18 inch	539/555	450	419,9	152	217,8	58	101/107
500	20 inch	594	505	467,8	152	241	58	111
600	24 inches	690	624	572,6	178	295,4	73	172
700	28 inch	800	720	680	229	354	98	219

Introduction

The double-disc butterfly check valve is used to prevent the backflow of media. It can be applied to water, steam, oil, nitric acid, strong oxidizing media and urea and other media.

Features

1, the double-disc butterfly check valve structure length is short, its structure length is only 1/4 to 1/8 of the traditional flange check valve;

2, small volume and light weight its weight is only 114~1/20:3 of the traditional flanged check valve, the clamping double disc butterfly check valve disc close fast water hammer pressure is small 4, horizontal pipelines and vertical pipelines can be used easy to install 5, the clamping double disc butterfly check valve flow to the smooth fluid resistance

6, sensitive sealing performance is good

7. The clamping double disc butterfly check valve has short disc stroke and small impact force

8, the overall structure is simple, compact and beautiful

9, long service life and high reliability.

Performance specification

Part Name

Material

Valve body

DSDP

ZG1Gr-18Ni9Ti

CF8

CF3

ZG1GM8
Ni12Mo2Ti

CF8M

CF3M

Valves, Saddles, Springs

2Cr13

1Gr18Ni9Ti

0 gr18ni9 (304)

00 gr18Ni10 (304l)

1Gr18Ni-12Mo2Ti

0Gr18Ni12-Mo2(310)

00Gr17Ni14-Mo2(316L)

Applicable media

Water, steam. Oil products

Nitric acid and other rotten media

Strong oxidizing environment

Acetate and other aggressive environments

Corrosive media such as urea

Applicable temperature "C

<450

<200

Table of main sizes and weight

PN (MIP)	DN (Mm)	L	D	Д 3	Д 2	Weight (kg)	Central garden diameter D1	Number of bolts	Diameter depth	Zero bolt length L1
1,0	50	60	108	56	51	2	125	4	M16	150
	65	67	128	73	65	3	145	4	M16	155
	80	73	142	88	80	4	160	8	M16	160
	100	73	162	108	102	6	180	8	M16	165
	125	86	192	132	127	8	210	8	M16	180
	150	98	218	160	152	13	240	8	M20	205
	200	127	273	210	203	24	295	8	M20	235
	250	146	328	266	254	37	350	12	M20	255
	300	181	378	310	305	50	400	12	M20	290
	350	184	438	355	350	76	460	16	M20	295
	400	191	489	405	400	110	515	16	M24	310
	450	203	539	455	450	135	565	20	M24	325
	500	219	594	505	500	158	620	20	M24	345
	600	222	696	605	600	320	725	20	M27	355
	700	305	811	700	695	380	840	24	M27	440
	800	305	918	800	796	560	950	24	M30	450
	900	368	1018	903	898	640	1050	28	M30	520
	1000	432	1124	1055	1050	900	1160	28	M33	590
	1200	524	1340	1205	1200	1400	1380	32	M36	695

Tianjin Hualida Valve Co., Ltd.

Address: Tianjin Jinan Industrial Development Zone
Mobile Phone: +86 15022758886
Website: www.hualidavalve.com
Mailbox: hualidavalve@163.com

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