1) ANSI B16.5, ASME B16.47 FLANGE
Size range: 1/2" to 80" DN15 to DN2000
Design: welding neck, slip on, blind, socket welding, threaded, lap-joint
Pressure: 150#, 300#, 600#,900#,1500#, 2500#
Wall thickness for welding neck flange: STD, SCH40, SCH80, SCH160. SCHXXS
Material: carbon steel A105, stainless steel 304/304L, 316/316L
Coating: black paint, yellow transparent paint, cold and hot dip galvanize
Package: seaworthy plywooden case, wooden pallet
2) EN1092-1 FLANGE
Size range: DN15 to DN2000
Design: type01 plate flange, type02 loose flange, type05 blind flange, type11 welding necking
type12 slip on flange, type 13 threaded flange
Pressure: PN6, PN10, PN16, PN25, PN40, PN64, PN100
Material: carbon steel C22.8, S235, S235JR, P235GH, stainless steel: 304/304L, 316/316L
Coating: black paint, yellow transparent paint, cold and hot dip galvanize
Package: sea worthy plywooden case, wooden pallet
3) DIN FLANGE
Size range: DN15 to DN2000
Design: slip on flange DIN2573,2576,2502,2503, 2543,2545
welding neck falnge DIN2631, 2632,2633,2634,2635
blind flange DIN 2527 PN6, PN10, PN16, PN25, PN40
threaded falnge DIN2565,2566,2567,2567
loose flange DIN 2641,2642,2656,2673
Material: carbon steel ST37.2, stainless steel 1.4301, 1.4404
Coating: rust-proof oil, transparent paint, cold and hot galvanize
Package: sea worthy plywooden case, wooden pallet
4) GOST FLANGE
Size range: DN15 to DN 2000
Design : plate falnge 12820-80, welding neck flange 12821-80
Pressure: PN6, PN10, PN16, PN25, PN40
Material: carbon steel CT-20, stainless steel 304/304L, 316/316L
Coating: rust-proof oil, cold and hot galvanize
Package: sea worthy plywooden case, wooden pallet
5) JIS FALNGE
Size ragne : 15A to 2000A
Design: SOP, BIND, SOH,
Puressure: 1K, 2K, 5K, 10K, 16K, 20K, 30K, 40K
Material: carbon steel SS400, stainless steel SUS304, SUS316
Coating : rust-proof oil, cold and hot galvanize
Packing: sea worthy plywooden case, wooden pallet
Material: Carbon steel: ASTM A105,A350 LF2, A694 etc.
Stainless steel: ASTM A182 F304 , 304L,,F304L,F316,316L , AISI 304 , AISI 321
Alloy steel: ASTM A182 A182 F12,F11,F22,F5,F9,F91etc.
ITEM | STANDARD |
STNDARD CODE | PRESSURE RATE | TYPE | SIZE |
1 | American standard | ANSI B16.5 | Class 150,300,600, 900,1500,2500 | WN, SW,SO,BL, TH,LWN | 1/2"-24" |
| ANSI B16.36 | Class 150,300,600, 900,1500,2500 | WN, SO, TH | 1/2"-24" | |
AWWA | Class B D E F | RING(HUB) flange | 3"-144" | ||
ASEM B16.47 | Class 150,300,600,900 | WN, BL | 26"-60" | ||
2 | British standard | BS4504 | PN6,10,16,25,40 | WN,SO,PL,BL | DN10-DN2000 |
3 | European standard | EN1092 | PN2,5,6,25,40,100, 160,250,320,400 | WN,SO,PL,BL | DN10-DN4000 |
4 | Japanese standard | JIS B2210 | 5K, 10K, 16K, 30K | SOP(PL,BL), SOH, (SO A,B,C), WN | 10A-1500A |
5 | Italy | UNI 6091-6099 UNI 2280-2286 UNI 2253-2257 | PN6,25,40,100, 160,250,320,400 | BL,WN,PL,SO | DN15-500 |
6 | Germany | DIN | PN2,5,6,10,16, 25,40,64,100,160 | SO,BL,PL,WN, LOOSE,TH | DN10-4000 |






FAQ
1 Are you a factory or trading company?
We are a factory specialized in manufacturing valves and ftting over 10 years.We have our own stainless steel foundry in Fujian province.
And we have got ISO9001&TS certificate of Manufacturing and processing of valves and fttings.
2 Where are the main markets for your products?
We hope to make business with companies from all over the world. And for now, our valves and fttings have
Been exported to especially in North America, South America, South Asia, Europe and Middle East.
3 Do you have a minimum quantity of the products?
No, we will build business with you with even 1PC. We believe this cooperation will be a long- term relationship for our high quality, competitive price and good after-sale service.
4 Are samples available to be sent with free?
It depends on what product you need. There are hundreds of products we sell. You can contact us for particular answer.
5 Can you print our Logo on the valves?
Yes, we can totally produce products according to your special request, even manufacture it base on your drawing.
6 What is your lead time?
It's around 15 days normally. If we have the products in stock, it will be about one week.
7 what is your payment term?
T/T 30% down payment, balance to be paid before shipment.
8 How can I check your factory situation w hile it's difficult for me to come to China?
We have photos and videos on our website and facebook, It shows every step of the manufacturing.
9 How can you guarantee the quality of products?
Firstly, we have the numerical control device to manufacture products accurately. Then our quality inspectors will test products one by one to make sure every valve or ftting we sell is qualified and release the test mill certificate. If possible, We can also send you the sample for checking. Regarding the details, we can discuss if you want to know more about it.
Jacky
ZHEJIANG LONGGONG VALVE TECHNOLOGY CO.,LTD