Forged Steel Gate Valves

Short Description:

Product Name: A105/F316L Gate Valves
Valve Category: Forged Valves
Brand: Yiluoke
Technical Data: DN15-DN600
Made In: China
Supplier: Xiamen Yiluoke Import and Export Trading Co., Ltd

Product Detail

Forged steel gate valves have three bonnet‑design options. The first is bolted bonnet: the valve body and bonnet are connected by bolts and nuts, sealed with spiral wound gasket (316 with flexible graphite). Metal ring joint is also available upon special customer requirements. The second is welded bonnet: the valve body and bonnet are threaded together and fully seal‑welded. The third is pressure‑seal bonnet: the valve body and bonnet are threaded together and sealed by internal‑pressure self‑energized sealing ring.

Forged Carbon and Stainless Steel Gate Valves

Product Design Features

1. Designed and manufactured in accordance with API standards, featuring reliable sealing and excellent performance for matching with imported equipment.

2. For pressure classes above 600LB, sealing surfaces of gate and seat are hard‑faced with Stellite cobalt‑base hard alloy. It delivers good wear resistance, high‑temperature resistance, corrosion resistance and anti‑galling performance for long service life.

3. The valve stem is quenched‑and‑tempered plus surface nitrided for good corrosion resistance and anti‑galling property.

4. Wedge‑type flexible gate structure is adopted. Rolling bearings are equipped for medium‑and‑large bore sizes to realize easy opening and closing.

5. Complete range of valve‑body materials. Packing and gaskets are reasonably selected according to actual working conditions or user requirements, adapting to various pressure, temperature and medium conditions.

6. Pressure‑self‑energized sealing structure is adopted for valve cavity of 1500LB and 2500LB. Sealing performance improves with rising internal pressure for high reliability.

7. Back‑seat sealing adopts stainless‑steel threaded sealing seat or integral overlay austenitic stainless‑steel. Reliable back‑seat allows packing replacement and maintenance without shutdown, convenient and fast without affecting system operation.

Working Principle of Forged Steel Gate Valves

Design Standards

Design & Manufacturing: API 602

Face‑to‑Face (End‑to‑End): ASME B16.10

Flanged Connection: ASME B16.5

Butt‑Welded Ends: ASME B16.25

Socket‑Welded Ends: ASME B16.11

Threaded Ends: ASME B1.20.1

Test & Inspection: API 598

Technical Parameters

Size Range	3/8" ~ 2‑1/2"
Pressure Class	800LB, 150LB ~ 2500LB
Trim Material	13Cr, Stainless Steel
Operation Mode	Handwheel, Electric
Body Material	Carbon steel, Stainless steel, Alloy steel, etc.
End Connection	Flanged end, Butt‑welded end, Socket‑welded end, Threaded end

Component Material List

Sturcture of Forged Steel Gate Valves

No.	Part Name	Carbon Steel	Alloy Steel	Stainless Steel	Stainless Steel
1	Valve Body	A105N	A182 F22	A182 F304(L)	A182 F316(L)
2	Seat	A182 F6a+STL	A182 F304	A182 F304(L)	A182 F316(L)
3	Gate	A182 F6a	A182 F304	A182 F304(L)	A182 F316(L)
4	Valve Stem	A182 F6a	A182 F304	A182 F304(L)	A182 F316(L)
5	Gasket	SPW SS304+Graphite	SPW SS304+Graphite	SPW SS304+Graphite	SPW SS304+Graphite
6	Bonnet	A105N	A182 F22	A182 F304(L)	A182 F316(L)
7	Bonnet Bolt	A193 B7	A193 B16	A193 B8	A193 B8M
8	Cylindrical Pin	A276 410	A276 304	A276 304	A276 316
9	Packing Gland	A276 410	A276 304	A276 304	A276 316
10	Eye Bolt	A193 B7	A193 B16	A193 B8	A193 B8M
11	Packing Flange	A105N	A182 F22	A182 F304(L)	A182 F316(L)
12	Nut	A194 2H	A194 4	A194 8	A194 8M

Dimensions

Dimensions of Forged Steel Gate Valves

150LB‑600LB

NPS	1/2	3/4	1	1‑1/4	1‑1/2	2	2‑1/2
150LB L(RF) L1(BW)	108	117	127	140	165	178	190
300LB	140	152	165	178	190	216	241
600LB	165	190	216	229	241	292	330
Handwheel Diameter W	100	100	125	160	160	180	200
150LB/300LB Center Height H	176	184	217	226	250	290	357
600LB Center Height H	161	163	196	226	250	290	357
150LB‑RF Weight	3.4	3.98	6.12	7.2	10.4	15.5	24.5
150LB‑BW Weight	2.8	3.3	5.4	6.5	8.2	12.5	20
300LB‑RF Weight	3.77	4.89	7.23	9.6	12.64	18	26.2
300LB‑BW Weight	3.5	4.4	6.8	8.1	9.2	15.4	22
600LB‑RF Weight	4.2	5.8	8.8	12.1	15.6	19.5	32
600LB‑BW Weight	4.5	5.1	8.2	10.5	12.4	20.1	28

900LB‑1500LB

NPS	1/2	3/4	1	1‑1/4	1‑1/2	2	2‑1/2
L(RF) L1(BW)	216	229	254	279	305	368	‑
L(RTJ)	216	229	254	279	305	371	‑
Handwheel Diameter W	125	125	160	180	200	220	‑
Open‑position Center Height H	191	192	219	257	296	316	‑
Bore Diameter d	13.5	18	24	29	36.5	45	‑
Weight	7.2	11.5	15.6	16.2	22.6	28.2	‑