Forged Steel Butt Welding End Check Valve

Caliber :DN15-50Medium : Water, steam, oil, nitric acid, acetic acid, etc.Pressure : 1.6〜6.4MPaApplicable Temperature : -29～350℃Applicable Industries : Urban construction, chemical industry, metallurgy, petroleum, pharmaceutical, food, environmental prote

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Product Description

Application range of forged steel check valve:
Forged steel check valves have three body cap connection design forms. The first type is bolted bonnet: a valve designed according to this design form, the valve body and bonnet are connected with bolts and nuts, and the spiral wound gasket (made of 316 flexible graphite) is sealed. Metal ring connection can also be used when customers have special requirements. The second design form is a welded bonnet. According to this design form, the valve body and the bonnet are screwed together and are fully welded and sealed. If customers have special requirements, penetration welding can also be used. The third type is the pressure self-tightening bonnet. The valve designed according to this design form has a threaded connection between the valve body and the bonnet, and the internal pressure is sealed by a self-tight ring.

Forged steel check valve standard material list
Part Name CStoASTM AStoASTM SStoASTM
A105 F22 F304（L） F316（L）
Valve body A105 A182F22 A182F304（L） A182F316（L）
Disc A276420 A276304 A276304（L） A276316（L）
Sealing nut 316 clip flexible graphite 316夹PTFE
Sealing ring A105 A182F22 A182F304（L） A193 B8（M）
Fixing nut SS
Lifting bolt A193B7 A193B16 A193B8（M） A193B8（M）
Applicable medium Water, steam, oil, etc. Water, steam, oil, etc. Nitric acid, acetic acid, etc.
proper temperature —29℃～425℃ —29℃～550℃ —29℃～200℃
Note: Other materials required by customers can also be used. The matching of sealing surface materials is determined by the internal part code designated by the customer. CS=carbon steel; AS=alloy steel; SS=stainless steel;
ng bonnet, threaded connection, fully welded sealing bonnet and threaded connection 7. Connecting internal pressure self-tightening bonnet 8. Integral upper sealing seat 9. Socket end conforms to ASME B16.11 10. Threaded connection end (NPT) conforms to ANSI/ASME B1.20.1 11. The valve disc can be changed into throttle type, needle type, ball type NPS 1/2" 3/4" 1" 11/4" 11/2" 2" L(RF) L1(BW) 150Lb 108 117 127 140 165 203 300Lb 152 178 203 216 229 267 600Lb 165 190 216 229 241 292 H 150Lb～300Lb 61 61 79 95 103 118 600Lb 61 79 95 103 118 135 weight 150Lb RF 2.56 3.37 4.37 8.17 8.94 12.64 BW 1.70 190 2.10 5.12 5.50 1.89 300Lb RF 2.73 3.65 4.74 8.77 9.60 13.70 BW 1.90 2.10 3.00 5.12 6.60 7.85 600Lb RF 3.00 4.00 5.83 9.47 10.10 15.6 BW 2.00 3.12 4.25 7.25 8.56 13.60
J41H/Y, J41W forged steel flange end stop valve is suitable for Class150 ~ 2500, working temperature -29 ~ 425 ℃ (carbon steel) or -29 ~ 500 ℃ (stainless steel) small diameter pipeline, used to cut off or connect The medium in the pipeline is made of different materials, which can be applied to various media such as water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea, etc. Forged steel gate valve has low fluid resistance, wide applicable pressure and temperature range, unrestricted medium flow direction, and good sealing performance. Product name J41H, J41Y forged steel flanged globe valve Product number J41H/Y、J41W Nominal diameter DN10-50 Pressure range 150Lb-1500LB Body material Forged steel A105, A182, F22, forged stainless steel Material of main parts： Part Name CS to ASTM AS to ASTM SS to ASTM Type A105 Type F22 Type F304(L) Type F316(L) Valve body A105 A182 F22 A182 F304(L) A182 F316(L) Gasket Corrugated SS+graphite SS+PTFE bolt A193 B7 A193 B16 A193 B8 A193 B8M Cylindrical pin A276 420 A276 304 Packing sleeve A276 410 A182 F304(L) A182 F316(L) Live bolt A193 B7 A193 B16 A193 B8 A193 B8M Nut A194 2H A194 4 A194 8 A194 8M Stem nut A276 410 Nut A194 2H A194 4 A194 8 A194 8M Nameplate SS Handwheel A197 Packing plate A216 WCB A351 CF8 Filler Flexible Graphite PTFE Cap A105 A276 304 A182 F304(L) A182 F316(L) Stem A182 F6 A182 F304 A182 F304(L) A182 F316(L) Disc A276 420 A276 304 A276 304(L) A276 316(L) Applicable medium Water, steam, oil, etc. Water, steam, oil, etc. Nitric acid, acetic acid, etc. proper temperature -29℃～425℃ -29℃～550℃ -29℃～180℃ Main external connection size and weight: NPS 1/2" 3/4" 1" 11/4" 11/2" 2" L(RF) &nbspnbsp; L1(BW) 150Lb 108 117 127 140 165 203 300Lb 152 178 203 216 229 267 600Lb 165 190 216 229 241 292 H(Open) 150Lb～300Lb 166 171 207 240 258 330 600Lb 171 207 240 258 330 380 W 100 100 125 160 160 180 weight 150Lb RF 4.5 6.9 9.8 13.5 19.5 28.0 BW 2.3 3.6 7.8 8.2 12.0 15.0 300Lb RF 4.8 7.7 11.0 16.8 21.2 32.6 BW 2.8 4.0 8.5 9.2 12.6 16.8 600Lb RF 5.6 7.8 12.5 17.0 23.5 38.8 J41H/Y, J41W forged steel flange end stop valve is suitable for Class150 ~ 2500, working temperature -29 ~ 425 ℃ (carbon steel) or -29 ~ 500 ℃ (stainless steel) small diameter pipeline, used to cut off or connect The medium in the pipeline is made of different materials, which can be applied to various media such as water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea, etc. Forged steel gate valve has low fluid resistance, wide applicable pressure and temperature range, unrestricted medium flow direction, and good sealing performance. Product name J41H, J41Y forged steel flanged globe valve Product number J41H/Y、J41W Nominal diameter DN10-50 Pressure range 150Lb-1500LB Body material Forged steel A105, A182, F22, forged stainless steel Material of main parts： Part Name CS to ASTM AS to ASTM SS to ASTM Type A105 Type F22 Type F304(L) Type F316(L) Valve body A105 A182 F22 A182 F304(L) A182 F316(L) Gasket Corrugated SS+graphite SS+PTFE bolt A193 B7 A193 B16 A193 B8 A193 B8M Cylindrical pin A276 420 A276 304 Packing sleeve A276 410 A182 F304(L) A182 F316(L) Live bolt A193 B7 A193 B16 A193 B8 A193 B8M Nut A194 2H A194 4 A194 8 A194 8M Stem nut A276 410 Nut A194 2H A194 4 A194 8 A194 8M Nameplate SS Handwheel A197 Packing plate A216 WCB A351 CF8 Filler Flexible Graphite PTFE Cap A105 A276 304 A182 F304(L) A182 F316(L) Stem A182 F6 A182 F304 A182 F304(L) A182 F316(L) Disc A276 420 A276 304 A276 304(L) A276 316(L) Applicable medium Water, steam, oil, etc. Water, steam, oil, etc. Nitric acid, acetic acid, etc. proper temperature -29℃～425℃ -29℃～550℃ -29℃～180℃ Main external connection size and weight: NPS 1/2" 3/4" 1" 11/4" 11/2" 2" L(RF) &nbspnbsp; L1(BW) 150Lb 108 117 127 140 165 203 300Lb 152 178 203 216 229 267 600Lb 165 190 216 229 241 292 H(Open) 150Lb～300Lb 166 171 207 240 258 330 600Lb 171 207 240 258 330 380 W 100 100 125 160 160 180 weight 150Lb RF 4.5 6.9 9.8 13.5 19.5 28.0 BW 2.3 3.6 7.8 8.2 12.0 15.0 300Lb RF 4.8 7.7 11.0 16.8 21.2 32.6 BW 2.8 4.0 8.5 9.2 12.6 16.8 600Lb RF 5.6 7.8 12.5 17.0 23.5 38.8 J41H/Y, J41W forged steel flange end stop valve is suitable for Class150 ~ 2500, working temperature -29 ~ 425 ℃ (carbon steel) or -29 ~ 500 ℃ (stainless steel) small diameter pipeline, used to cut off or connect The medium in the pipeline is made of different materials, which can be applied to various media such as water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea, etc. Forged steel gate valve has low fluid resistance, wide applicable pressure and temperature range, unrestricted medium flow direction, and good sealing performance. Product name J41H, J41Y forged steel flanged globe valve Product number J41H/Y、J41W Nominal diameter DN10-50 Pressure range 150Lb-1500LB Body material Forged steel A105, A182, F22, forged stainless steel Material of main parts： Part Name CS to ASTM AS to ASTM SS to ASTM Type A105 Type F22 Type F304(L) Type F316(L) Valve body A105 A182 F22 A182 F304(L) A182 F316(L) Gasket Corrugated SS+graphite SS+PTFE bolt A193 B7 A193 B16 A193 B8 A193 B8M Cylindrical pin A276 420 A276 304 Packing sleeve A276 410 A182 F304(L) A182 F316(L) Live bolt A193 B7 A193 B16 A193 B8 A193 B8M Nut A194 2H A194 4 A194 8 A194 8M Stem nut A276 410 Nut A194 2H A194 4 A194 8 A194 8M Nameplate SS Handwheel A197 Packing plate A216 WCB A351 CF8 Filler Flexible Graphite PTFE Cap A105 A276 304 A182 F304(L) A182 F316(L) Stem A182 F6 A182 F304 A182 F304(L) A182 F316(L) Disc A276 420 A276 304 A276 304(L) A276 316(L) Applicable medium Water, steam, oil, etc. Water, steam, oil, etc. Nitric acid, acetic acid, etc. proper temperature -29℃～425℃ -29℃～550℃ -29℃～180℃ Main external connection size and weight: NPS 1/2" 3/4" 1" 11/4" 11/2" 2" L(RF) &nbspnbsp; L1(BW) 150Lb 108 117 127 140 165 203 300Lb 152 178 203 216 229 267 600Lb 165 190 216 229 241 292 H(Open) 150Lb～300Lb 166 171 207 240 258 330 600Lb 171 207 240 258 330 380 W 100 100 125 160 160 180 weight 150Lb RF 4.5 6.9 9.8 13.5 19.5 28.0 BW 2.3 3.6 7.8 8.2 12.0 15.0 300Lb RF 4.8 7.7 11.0 16.8 21.2 32.6 BW 2.8 4.0 8.5 9.2 12.6 16.8 600Lb RF 5.6 7.8 12.5 17.0 23.5 38.8 BW 3.4 4.7 9.2 10.5 13.3
J41H/Y, J41W forged steel flange end stop valve is suitable for Class150 ~ 2500, working temperature -29 ~ 425 ℃ (carbon steel) or -29 ~ 500 ℃ (stainless steel) small diameter pipeline, used to cut off or connect The medium in the pipeline is made of different materials, which can be applied to various media such as water, steam, oil, nitric acid, acetic acid, oxidizing medium, urea, etc. Forged steel gate valve has low fluid resistance, wide applicable pressure and temperature range, unrestricted medium flow direction, and good sealing performance. Product name J41H, J41Y forged steel flanged globe valve Product number J41H/Y、J41W Nominal diameter DN10-50 Pressure range 150Lb-1500LB Body material Forged steel A105, A182, F22, forged stainless steel Material of main parts： Part Name CS to ASTM AS to ASTM SS to ASTM Type A105 Type F22 Type F304(L) Type F316(L) Valve body A105 A182 F22 A182 F304(L) A182 F316(L) Gasket Corrugated SS+graphite SS+PTFE bolt A193 B7 A193 B16 A193 B8 A193 B8M Cylindrical pin A276 420 A276 304 Packing sleeve A276 410 A182 F304(L) A182 F316(L) Live bolt A193 B7 A193 B16 A193 B8 A193 B8M Nut A194 2H A194 4 A194 8 A194 8M Stem nut A276 410 Nut A194 2H A194 4 A194 8 A194 8M Nameplate SS Handwheel A197 Packing plate A216 WCB A351 CF8 Filler Flexible Graphite PTFE Cap A105 A276 304 A182 F304(L) A182 F316(L) Stem A182 F6 A182 F304 A182 F304(L) A182 F316(L) Disc A276 420 A276 304 A276 304(L) A276 316(L) Applicable medium Water, steam, oil, etc. Water, steam, oil, etc. Nitric acid, acetic acid, etc. proper temperature -29℃～425℃ -29℃～550℃ -29℃～180℃ Main external connection size and weight: NPS 1/2" 3/4" 1" 11/4" 11/2" 2" L(RF) &nbspnbsp; L1(BW) 150Lb 108 117 127 140 165 203 300Lb 152 178 203 216 229 267 600Lb 165 190 216 229 241 292 H(Open) 150Lb～300Lb 166 171 207 240 258 330 600Lb 171 207 240 258 330 380 W 100 100 125 160 160 180 weight 150Lb RF 4.5 6.9 9.8 13.5 19.5 28.0 BW 2.3 3.6 7.8 8.2 12.0 15.0 300Lb RF 4.8 7.7 11.0 16.8 21.2 32.6 BW 2.8 4.0 8.5 9.2 12.6 16.8 600Lb RF 5.6 7.8 12.5 17.0 23.5 38.8 BW 3.4 4.7 9.2 10.5 13.3
Structural features of forged steel flanged globe valve This type of valve adopts two sealing types: plane seal and conical surface seal, which can be used for medium requirements of different working conditions, with stable sealing performance and long service life. Turn the hand wheel counterclockwise to drive the valve stem to drive the valve disc and diaphragm to rise rapidly, opening the channel to allow the medium to pass smoothly. Design and manufacturing standards: 1. Design and manufacture according to GB12235-89 2. The length of the structure is in accordance with GB12221-89 3. Flange size according to JB/G79-94 4. Valve inspection and test are in accordance with GB13927 Performance specification for forged steel flanged globe valve Model Nominal pressure Test Pressure Working temperature (℃) Applicable medium Strength (water) (Mpa) Seal (water) air (Mpa) Low pressure sealed air (Mpa) J41W-16P 1.6 2.4 1.8 0.6 ≤200 NITRIC ACID J41W-25P 2.5 3.8 2.8 0.6 ≤200 NITRIV ACID ACETIC ACID J41W-40P 4.0 6.0 4.4 0.6 ≤200 Structural features of forged steel flanged globe valve This type of valve adopts two sealing types: plane seal and conical surface seal, which can be used for medium requirements of different working conditions, with stable sealing performance and long service life. Turn the hand wheel counterclockwise to drive the valve stem to drive the valve disc and diaphragm to rise rapidly, opening the channel to allow the medium to pass smoothly. Design and manufacturing standards: 1. Design and manufacture according to GB12235-89 2. The length of the structure is in accordance with GB12221-89 3. Flange size according to JB/G79-94 4. Valve inspection and test are in accordance with GB13927 Performance specification for forged steel flanged globe valve Model Nominal pressure Test Pressure Working temperature (℃) Applicable medium Strength (water) (Mpa) Seal (water) air (Mpa) Low pressure sealed air (Mpa) J41W-16P 1.6 2.4 1.8 0.6 ≤200 NITRIC ACID J41W-25P 2.5 3.8 2.8 0.6 ≤200 NITRIV ACID ACETIC ACID J41W-40P 4.0 6.0 4.4 0.6 ≤200 J41W-64P 6.4 9.6 7.0 0.6 ≤200

Product Description DIN3352 F5 Iron Gland Type NRS Resilient Seat Gate Valve, DN50-DN600 cast iron gate valve Features 1. The ductile iron core is fully vulcanized with EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber. 2. Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem. 3. Stainless steel stem with rolled threads for high strength. 4. The valve can replace stem seals under pressure. 5. Full bore. 6. Body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance. cast iron gate valve Standard Design standard DIN3352 F5, EN1171 Flange drilling standard EN1092-2 PN10/PN16 Face to face standard EN558-1 Series 15 Hydraulic test standard EN1074-1 and 2 /EN12266 Seat:1.1*PN(in bar), Body:1.5*PN(in bar) cast iron gate valve Technical Parameters Nominal diameter(mm) 50～600 50～600 Nominal pressure(Mpa) 1.0 1.6 Testing pressure Shell(Mpa) 1.5 2.4 Seal(Mpa) 1.1 1.76 Suitable temperature -40°C～150°C Suitable medium Drinking water、sewage、seawater、irrigation,or other neutral liquid. cast iron gate valve Main Raw Material 1 Body Ductile Iron 9 Gland bolt Steel gr.8.8 2 Wedge Ductile Iron+EPDM 10 Handwheel Ductile Iron 3 Wedge Nut Brass 11 Gland Ductile Iron 4 Stem Stainless steel 12 O-ring EPDM rubber 5 Bonnet gasket EPDM rubber 13 Nut Stainless steel 6 Bonnet Ductile iron 14 Washer Steel 7 Thrust collar Brass 15 Bonnet bolt Steel gr.8.8 8 O-ring EPDM rubber Components may be substituted with equivalent or higher class materials. cast iron gate valve Dimension Size L D C B n-d b f H DN50 250 165 125 99 4-19 19 3 280 DN65 270 185 145 119 4-19 19 3 305 DN80 280 200 160 133 4-19 8-19 19 3 350 DN100 300 220 180 154 8-19 19 3 390 DN125 325 250 210 184 8-19 19 3 470 DN150 350 285 240 210 8-23 19 3 525 DN200 400 340 295 265 8-23 12-23 20 3 630 DN250 450 405 350 355 319 12-23 12-28 22 3 780 DN300 500 460 400 410 370 12-23 12-28 24.5 4 870 DN350 550 520 460 470 429 16-23 16-28 26.5 4 1100 DN400 600 565 580 515 525 480 16-28 16-32 28 4 1200 DN450 650 640 565 585 548 20-28 16-32 30 4 1300 DN500 700 670 715 620 650 582 20-28 20-32 31.5 5 1450 DN600 800 780 840 725 770 682 20-31 20-37 36 5 1650

Product Description Product Description DIN3352-F4 NRS Brass Gland Resilient Seated Gate Valve, DN50-DN600 Features ● The ductile iron core is fully vulcanized with EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber. ● Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem. ● Stainless steel stem with rolled threads for high strength. ● The valve can replace stem seals under pressure. ● Full bore. ● Body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance. Standard Design standard DIN3352 F4, EN1171 Flange drilling standard EN1092-2 PN10/PN16 Face to face standard EN558-1 Series 14 Hydraulic test standard EN1074-1 and 2 /EN12266 Seat:1.1*PN(in bar), Body:1.5*PN(in bar) Technical Parameters Nominal diameter(mm) 40～600 40～600 Nominal pressure(Mpa) 1.0 1.6 Testing pressure Shell(Mpa) 1.5 2.4 Seal(Mpa) 1.1 1.76 Suitable temperature -40°C～150°C Suitable medium Drinking water、sewage、seawater、irrigation,or other neutral liquid. Main Raw Material 1 Body Ductile Iron 9 Top-nut Brass 2 Wedge Ductile Iron+EPDM 10 Washer PTFE 3 Stem Stainless steel 11 Thrust collar Brass 4 Wedge Nut Brass 12 Washer PTFE 5 Bonnet Ductile iron 13 Dust Cover NBR 6 Bonnet gasket EPDM rubber 14 Handwheel Ductile Iron 7 Bonnet Ductile Iron 15 Bonnet bolt Steel gr.8.8 8 O-ring EPDM rubber Components may be substituted with equivalent or higher class materials. Dimension Size L D C B n-d b f H DN50 150 165 125 99 4-19 19 3 280 DN65 170 185 145 119 4-19 19 3 305 DN80 180 200 160 133 4-19 8-19 19 3 350 DN100 190 220 180 154 8-19 19 3 390 DN125 200 250 210 184 8-19 19 3 470 DN150 210 285 240 210 8-23 19 3 525 DN200 230 340 295 265 8-23 12-23 20 3 630 DN250 250 405 350 355 319 12-23 12-28 22 3 780 DN300 270 460 400 410 370 12-23 12-28 24.5 4 870 DN350 290 520 460 470 429 16-23 16-28 26.5 4 1100 DN400 310 565 580 515 525 480 16-28 16-32 28 4 1200 DN450 330 640 565 585 548 20-28 16-32 30 4 1300 DN500 350 670 715 620 650 582 20-28 20-32 31.5 5 1450 Product Description Product Description DIN3352-F4 NRS Brass Gland Resilient Seated Gate Valve, DN50-DN600 Features ● The ductile iron core is fully vulcanized with EPDM rubber, no iron parts are exposed to the medium and the excellent rubber vulcanization prevents creeping corrosion underneath the rubber. ● Guides in the wedge and on the valve body ensure a uniform closure, safe operation ensured as the guides prevent overloading of the stem. ● Stainless steel stem with rolled threads for high strength. ● The valve can replace stem seals under pressure. ● Full bore. ● Body inside and outside fusion bonded epoxy coating with excellent corrosion resistant performance. Standard Design standard DIN3352 F4, EN1171 Flange drilling standard EN1092-2 PN10/PN16 Face to face standard EN558-1 Series 14 Hydraulic test standard EN1074-1 and 2 /EN12266 Seat:1.1*PN(in bar), Body:1.5*PN(in bar) Technical Parameters Nominal diameter(mm) 40～600 40～600 Nominal pressure(Mpa) 1.0 1.6 Testing pressure Shell(Mpa) 1.5 2.4 Seal(Mpa) 1.1 1.76 Suitable temperature -40°C～150°C Suitable medium Drinking water、sewage、seawater、irrigation,or other neutral liquid. Main Raw Material 1 Body Ductile Iron 9 Top-nut Brass 2 Wedge Ductile Iron+EPDM 10 Washer PTFE 3 Stem Stainless steel 11 Thrust collar Brass 4 Wedge Nut Brass 12 Washer PTFE 5 Bonnet Ductile iron 13 Dust Cover NBR 6 Bonnet gasket EPDM rubber 14 Handwheel Ductile Iron 7 Bonnet Ductile Iron 15 Bonnet bolt Steel gr.8.8 8 O-ring EPDM rubber Components may be substituted with equivalent or higher class materials. Dimension Size L D C B n-d b f H DN50 150 165 125 99 4-19 19 3 280 DN65 170 185 145 119 4-19 19 3 305 DN80 180 200 160 133 4-19 8-19 19 3 350 DN100 190 220 180 154 8-19 19 3 390 DN125 200 250 210 184 8-19 19 3 470 DN150 210 285 240 210 8-23 19 3 525 DN200 230 340 295 265 8-23 12-23 20 3 630 DN250 250 405 350 355 319 12-23 12-28 22 3 780 DN300 270 460 400 410 370 12-23 12-28 24.5 4 870 DN350 290 520 460 470 429 16-23 16-28 26.5 4 1100 DN400 310 565 580 515 525 480 16-28 16-32 28 4 1200 DN450 330 640 565 585 548 20-28 16-32 30 4 1300 DN500 350 670 715 620 650 582 20-28 20-32 31.5 5 1450 DN600 390 780 840 725 770 682 20-31 20-37 36 5 1650

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Part Name	CStoASTM	AStoASTM	SStoASTM
Part Name	A105	F22	F304（L）	F316（L）
Valve body	A105	A182F22	A182F304（L）	A182F316（L）
Disc	A276420	A276304	A276304（L）	A276316（L）
Sealing nut	316 clip flexible graphite		316夹PTFE
Sealing ring	A105	A182F22	A182F304（L）	A193 B8（M）
Fixing nut	SS
Lifting bolt	A193B7	A193B16	A193B8（M）	A193B8（M）
Applicable medium	Water, steam, oil, etc.	Water, steam, oil, etc.	Nitric acid, acetic acid, etc.
proper temperature	—29℃～425℃	—29℃～550℃	—29℃～200℃