Rising Stem Gate Valve

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Rising Stem Gate Valve

Rising stem gate valves can be used in various applications, including water conveyance systems, seawater pipeline systems, gas pipeline systems, and weak acid-base transport systems.

Basic Information

Size Range: DN15-DN1200

Temperature Range T: 0-100℃

Maximum Allowable Operating Pressure PN: 1.0-2.5Mpa

Pressure Rating: 1.5-3.75Mpa (Shell)
1.1-2.75Mpa (Seal)

Applicable Media: Freshwater, seawater, air, weak acid-base, and so on.

Materials

No.	Part	Materials	No.	Part	Material
1	Valve Body and Valve Bonnet	CF8, CF8M, CF3, CF3M, WCB	6	Packing	FTFE, Graphite
2	Valve Disc	CF8, CF8M, CF3, CF3M, WCB	7	O-Ring	PTFE
3	Valve Stem	CF8, CF8M, 2Cr13	8	Bolts	Stainless Steel, 35CrMoA
4	Valve Stem Nut	Aluminum Bronze	9	Nuts	Stainless Steel, 45#, 35CrMoA
5	Gland	CF8, CF8M, CF3, CF3M, WCB	10	Valve Handwheel	WCB

Specifications

(under the pressure of 1.6 MPa)

Size	L	ØD	ØD1	ØD2	c	n-d0	W	H
DN15	130	95	65	45	16	4-Ø14	120	220
DN20	150	105	75	55	16	4-Ø14	140	255
DN25	160	115	85	65	16	4-Ø14	160	275
DN32	180	135	100	78	18	4-Ø18	180	280
DN40	200	145	110	85	18	4-Ø18	200	300
DN50	250	160	125	100	18	4-Ø18	240	358
DN65	265	180	145	120	18	8-Ø18	240	375
DN80	280	195	160	135	20	8-Ø18	280	433
DN100	300	215	180	155	22	8-Ø18	320	502
DN125	325	245	210	185	24	8-Ø18	360	612
DN150	350	280	240	210	24	8-Ø22	360	676
DN200	400	335	295	265	26	12-Ø22	400	820
DN250	450	405	355	320	30	12-Ø26	450	969
DN300	500	460	410	375	30	12-Ø26	560	1142
DN350	550	520	470	435	34	16-Ø26	640	1280
DN400	600	580	525	485	36	16-Ø30	640	1452
DN450	650	640	585	545	40	20-Ø30	720	1541
DN500	700	705	650	608	44	20-Ø33	720	1676
DN600	800	840	770	718	48	20-Ø36	800	1874
DN700	900	910	840	788	50	24-Ø36	800	2083
DN800	1000	1020	950	898	52	24-Ø39	950	2400
DN900	1100	1120	1050	998	54	28-Ø39	1000	2950
DN1000	1200	1255	1170	1110	56	28-Ø42	1000	3245
DN1200	1300	1485	1390	1325	58	32-Ø48	1100	3850

Certifications

Item	Standard	Optional Standard
Design & Manufacture	GB12234	API600, ANSI B16.34
Face to Face Dimension	GB12221-89	ANSI B16.10
Flange Connection	JB/T-79	ANSI B16.5
Valve Test	JB/T-9092	API598

Features

Minimal Flow Resistance: When the medium flows through the gate valve, it does not change its flow direction, resulting in low fluid resistance.
Low Opening and Closing Torque: Opening and closing a gate valve is relatively effortless because the motion of the gate is perpendicular to the flow direction of the medium. Compared to globe valves, gate valves require less effort to operate.
Unrestricted Flow Direction: The flow direction of the medium is not restricted, and gate valves do not disrupt the flow or reduce pressure. This makes them suitable for pipeline conveyance systems where the flow direction of the medium may change.
Shorter Structural Length: Gate valves have shorter structural lengths compared to globe valves because the gate disc is positioned vertically inside the valve body, while other valve discs are horizontally placed inside the valve body.
Excellent Sealing Performance: When fully open, the sealing surfaces experience minimal erosion from the working medium.
Reduced Erosion on Sealing Surfaces: When fully open, the sealing surfaces experience less erosion from the working medium compared to globe valves.