Class150-300 cast steel gate valve

Characteristics of API Gate Valve

1. Design and manufacture of product according to ANSI B16.34 and API600 and API 6D.
2. Compact structure, small bulk, perfect rigidity, safety and reliable.
3. Blow down part (disc) utilize flexible structure, can automatically compensate distortion of body due to abnormal burden or temperature,so seal reliable and prevent wedge disc being blocked.
4. Manual valve with size over or equal to NPS 10", class 150 pounds and size over or equal to NPS6", class 600~2500 pound equipwith roller bearing to operate easily.
5. Material of main body. Material of trims, packing, washer, material of fastener can logically combine according to customers requirement or actual work status.
6. Exchangeable inside thread seat is used for NPS�?0" gate valve, random combine the material of surface of blow down part to meet the requirement of work status, prolong service life.

STD

Desing And manufcture	Face to face/End to end	Flange Dimension	Butt welding dimension	Pressure and Temperature	lnspection and test
APl 600	ASME B16.10	ASME B16.5	ASTM B16.25	ASME B16.34	APl 598

Pressure test

Nominal Pressure	Shell Test		Water Seal Test		Air Seal Test
Nominal Pressure	MPa	Lbf/in2	MPa	Lbf/in2	MDa	Lbf/in2
150	3.1	450	2.2	315	0.5�?.7	60�?00
300	7.8	1125	5.6	815
600	15.3	2225	11.2	1630
900	23.1	3350	16.8	2440
1500	38.4	5575	28.1	4080
2500	64.6	9367	47.4	6873

Main part material

Body	ASTM A216 WCB				ASTM A351 CF8
Wedge disc	WCB	CF8	CF8M	Monel	ASTM A351 CF8
Stem	F6a	F304	F316	Monel	F304
Wedge disc Sealing face	13Cr 13Cr STL	304 STL	316 STL	Monel	304 304 STL
Seat ring sealing face	13Cr STL STL	304 STL	316 STL	Morel	304 STL STL

Body	ASTM A351 CF3	ASTM A351 CF8M	ASTM A351 CF8
Wedge disc	ASTM A351 CF3	ASTM A351 CF8M	ASTM A351 CF8
Stem	F304L	F316	F316
Wedge disc Sealing face	304L 304L STL	316 316 STL	316L 316L STL
Seat ring sealing face	304L STL STL	316	316L STL STL

Class	DN (mm)	NPS (in)	L			d	H	W	H1	W1	Gear device
Class	DN (mm)	NPS (in)	RF	RTJ	BW	d	H	W	H1	W1	Gear device
150(PN20)	50	2	178	191	216	51	400	200	-	-	-
	65	2 1,2	191	203	241	64	435	200	-	-	-
	80	3	203	216	283	76	515	250	-	-	-
	100	4	229	241	305	102	595	280	-	-	-
	125	5	254	267	381	127	725	280	-		-
	150	6	267	279	403	152	780	300	820	310	-
	200	8	292	305	419	203	975	350	1020	310	-
	250	10	330	343	457	254	1150	400	1200	310	-
	300	12	356	368	502	305	1380	450	1430	310	-
	350	14	381	394	572	337	1545	500	1580	460	BA-0
	400	16	406	419	610	387	1733	500	1780	460	BA-1
	450	18	432	445	660	438	1915	500	1990	460	BA-1
	500	20	457	470	711	489	2122	600	2220	460	BA-2
	600	24	508	521	813	591	2520	600	2600	460	BA-2
	650	26	559	-	864	633	-	-	2800	600	BA-2
	700	28	610	-	914	684	-	-	3050	600	BA-2
300(N50)	50	2	216	232	216	51	420	200	-	-	-
	65	2 1,2	241	257	241	64	446	200	-	-	-
	80	3	283	298	283	76	537	250	-	-	-
	100	4	305	321	305	102	619	280	650	310	-
	125	5	381	397	381	127	722	300	750	310	-
	150	6	403	419	403	152	806	350	835	310	-
	200	8	419	435	419	203	1000	400	1030	310	-
	250	10	457	473	457	254	1240	450	1280	310	-
	300	12	502	518	502	305	1425	500	1460	460	-
	350	14	762	778	762	337	1585	600	1620	460	BA-1
	400	16	838	854	838	387	1790	500	1830	460	BA-1
	450	18	914	930	914	438	1960	650	2000	460	BA-2
	500	20	991	1010	991	489	2158	750	2220	460	BA-2
	600	24	1143	1165	1143	591	2576	900	2620	460	BA-2