API Ce Wafer Check Valve Flap Valve Class 300 Standard

Model NO.: deca

Material: Stainless Steel

Type: Single Seater

Trademark: DECRRD

Transport Package: Wooden Case

Specification: DN50 ANSI 300

Origin: China

HS Code: 8481803990

Features
Compact structure: small volume, light weight, easy maintenance
Smooth flow channel: low flow resistance, low pressure drop, high flow
Strong anti-wear performance: The ball is subject to hard alloy spray coating, and the seat sealing face is subject to hard alloy overlaying welding.
Fire-safe and antistatic: Meeting API607 requirements, it is provided with the antistatic device.
Main technical parameters
Type: two-piece type, three-piece type
Nominal diameter: DN15~600(NPS1/2~24)
Nominal pressure: PN1.6~10.0MPa(Class150~600)
Type of connection: flanged
Material: A216-WCB, A351-CF8, A351-CF8M, A351-CF3,
A351-CF3M, A217-WC6, A217-WC9
Bonnet: standard type: -29~250ºC
high temperature (cooling fin) type: 250~525ºC
low temperature (extension) type: -29~-20ºC, -196~-46ºC
See table 3 for working temperature and pressure ranges of various materials.
Packing: PTFE, flexible graphite, nickel-based wire reinforced flexible graphite
Plug type: O straight-through type
Plug material: A182-F304, A182-F316
Seat material: soft seal: PTFE, RPTFE, PPL
hard seal: A182-F304, A182-F316
Please see tables 3 for the material combination and surface treatment for body, plug, ball, seat, stem, etc.
Flow characteristic: quick opening
Rated Kv value: See table 4 for details.
Rated travel: 0~90ÐŽ
Seat Leakage class: soft seal: ANSI B16.104 class VI
Hard seal: ANSI B16.104 class V (hard seal class VI for special orders)

Nominal Pressure	Nominal diameter		Face-to-face dimensions	Flange connection dimensions				RF Sealing surface		Opening height	(kg) Reference weight
	NPS	DN	L	D	K	n-L	C	d	f1	H
Class 150	11/2	40	165	125	98.4	4-16	15.9	73.0	2	630	42
	2	50	178	150	120.7	4-18	17.5	92.1	2	640	45
	21/2	65	190	180	139.7	4-18	20.7	104.8	2	690	55
	3	80	203	190	152.4	4-18	22.3	127.0	2	750	68
	4	100	229	230	190.5	8-18	22.3	157.2	2	780	80
	5	125	254	255	215.9	8-22	22.3	185.7	2	850	110
	6	150	267	280	241.3	8-22	23.9	215.9	2	940	130
	8	200	292	345	298.5	8-22	27.0	269.9	2	1120	220
	10	250	330	405	362.0	12-26	28.6	323.8	2	1330	270
	12	300	356	485	431.8	12-26	30.2	381.0	2	1530	370
	14	350	381	535	476.3	12-30	33.4	412.8	2	1710	510
	16	400	406	595	539.8	16-30	35.0	469.9	2	1880	650
	18	450	432	635	577.9	16-33	38.1	533.4	2	2160	1150
	20	500	457	700	635.0	20-33	41.3	584.2	2	2360	1380
	24	600	508	815	749.3	20-36	46.1	692.2	2	2660	1520
	28	700	610	835	795.3	40-22	43.0	762	2	3350	2390
	32	800	660	940	900.1	48-22	44.6	864	2	3860	2890
	36	900	711	1055	1009.6	44-26	50.9	972	2	4280	3620

Note: For valves with PN1.6, 2.5 (MPa), flange dimensions as per JB/T 79.2 series 2 ; face-to-face dimensions as per GB/T 12221.
See table 1-13~1-14.
Valves with PN1.6, 2.5 (MPa) have the same opening height as that of 150LB valves, as shown in the table. Reference weight is
given otherwise
 

Nominal Pressure	Nominal diameter		Face-to-face dimensions	Flange connection dimensions				RF Sealing surface		Opening height	(kg) Reference weight
	NPS	DN	L	D	K	n-L	C	d	f1	H
Class 300	11/2	40	190	155	114.3	4-22	19.1	73.0	2	640	45
	2	50	216	165	127.0	8-18	20.7	92.1	2	650	50
	21/2	65	241	190	149.2	8-22	23.9	104.8	2	690	70
	3	80	283	210	168.3	8-22	27.0	127.0	2	750	80
	4	100	305	255	200.0	8-22	30.2	157.2	2	800	100
	5	125	381	280	235.0	8-22	33.4	185.7	2	910	180
	6	150	403	320	269.9	12-22	35.0	215.9	2	1000	210
	8	200	419	380	330.2	12-26	39.7	269.9	2	1160	250
	10	250	457	445	387.4	16-30	46.1	323.8	2	1350	420
	12	300	502	520	450.8	16-33	49.3	381.0	2	1620	590
	14	350	762	585	514.4	20-33	52.4	412.8	2	1820	870
	16	400	838	650	571.5	20-36	55.6	469.9	2	1930	1180
	18	450	914	710	628.6	24-36	58.8	533.4	2	2150	1380
	20	500	991	775	685.8	24-36	62.0	584.2	2	2350	1980
	24	600	1143	915	812.8	24-42	68.3	692.2	2	3060	2380
	28	700	1346	920	857.2	36-36	87.4	787	2	3400	3300
	32	800	1524	1055	977.9	32-42	101.6	902	2	4400	6400
	36	900	1727	1170	1089	32-45	101.6	1010	2	--	--

Note: For valves with 10.0 (MPa), flange dimensions as per JB/T 79.2 series 2 ; face-to-face dimensions as per GB/T 12221.
See table 1-17.
Valves with PN10.0 (MPa) have the same opening height as that of 600LB valves, as shown in the table. Reference weight is
given otherwise.  
ote: For valves with PN4.0,6.3 (MPa), flange dimensions as per JB/T 79.2 series 2 ; face-to-face dimensions as per GB/T 12221.
See table 1-16~1-16.
Valves with PN4.0,6.3 (MPa) have the same opening height as that of 300LB valves, as shown in the table. Reference weight is
given otherwise.

Pressure rating is 600LB flange dimensions is according to ASME B16.5 standards;
Length of the structure are adopted to ASME B16.10, API6D standards, as shown in Table 1-20.
 

ominal Pressure	Nominal diameter		Face-to-face dimensions		Flange connection dimensions				RF Sealing surface				Opening height	(kg) Reference weight
	NPS	DN	L		D	K	n-L	C	RF		RJ		H
			RF	RJ					d	f1	P	E
Class 600	11/2	40	241	241	155	114.3	4-22	22.3	73.0	7	90.5	6.35	650	60
	2	50	292	295	165	127.0	8-18	25.4	92.1	7	108	7.92	650	70
	21/2	65	330	333	190	149.2	8-22	28.6	104.8	7	127	7.92	710	95
	3	80	356	359	210	168.3	8-22	31.8	127.0	7	146	7.92	765	110
	4	100	432	435	275	215.9	8-26	38.1	157.2	7	175	7.92	820	180
	5	125	508	511	330	266.7	8-30	44.5	185.7	7	210	7.92	960	270
	6	150	559	562	355	292.1	12-30	47.7	215.9	7	241	7.92	1050	330
	8	200	660	664	420	349.2	12-33	55.6	269.9	7	302	7.92	1250	620
	10	250	787	791	510	431.8	16-36	63.5	323.8	7	356	7.92	1450	980
	12	300	838	841	560	489.0	20-36	66.7	381.0	7	413	7.92	1720	1360
	14	350	889	892	605	527.0	20-39	69.9	412.8	7	457	7.92	2040	1720
	16	400	991	994	685	603.2	20-42	76.2	469.9	7	508	7.92	2150	2150
	18	450	1092	1095	745	654.0	20-45	82.6	533.4	7	575	7.92	2320	2980
	20	500	1194	1200	815	723.9	24-45	88.9	584.2	7	635	9.52	2650	3400
	24	600	1397	1407	940	838.2	24-51	101.6	692.2	7	749	11.13	3150	4700

 

The detachable surface part of the valve is used to support the fully closed position of the valve core and constitute a sealing pair. The general seat diameter is the maximum diameter of the valve. The seat is made of a wide range of materials. All kinds of rubber, plastic and metal materials can be used as Valve Seat materials, such as: EPDM, NBR, NR, PTFE, PEEK, PFA, SS315, STELLITE and so on.

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