API 600 Cast Gate Valves
Designs
Design: API-600 (carbon steel), API 603 (stainless/alloy steel)
Pressure/temperature rating: ASME B 16.34
Flange dimensions: ASME B16.5 (up to 24" nominal diameter) or MSS SP 44 (above 24'')
Butt / socket welding ends: ASME B16.25 (on demand)
Face to face dimensions: ASME B 16.10
NACE Service: MR-01-75 or MR-01-03
Testing: API 598
Wedge design: Solid (up to 4") and flexible (5" and above)
Bolted bonnet
Outside / inside screw and yoke - non rotating stem / roating stem
Graphite packing
Stainless steel or graphite gaskets
Ends RF, RTJ or BW
Manual valves: Hand-wheel, impact hand-wheel, chain-wheel, gear operation
Actuation: Electric, pneumatic or hydraulic
Low fugitive emissions control
On demand: DIN gate valves
On demand: Cryogenic service
Materials
Carbon steel WCA, WCB, WCC, etc.
Low carbon steel LCB, LCC, etc.
Low alloy steel WC1, WC5, WC6, WC9, etc.
Low carbon low Alloy Steel LC2, LC3, etc.
Medium alloy steel C5, C12, C12A, etc.
Stainless steel CF8, CF8M, CF8C, CF10, CG8M, etc.
Low carbon stainless steel CF3, CF3M, CG3M, etc.
Super stainless steel CN7M (Alloy 20), CN3M (Alloy 20 modified), CT15C, etc
Duplex stainless steel CE8MN, CD6MN, CD3MN, etc.
Super Duplex Stainless Steel CE3MN, CD3MNWCuN, etc.
High Nickel Alloys: Monel M30C, Monel M35-1, Monel CZ100, Inconel CY40 (Inconel 600), CW2M (Hastelloy C4), N12MV (Hastelloy B), CW12MW (Former Hastelloy C-276), CW6M (New Hastelloy C-276), CU5MCuC (Incoloy 825), N7M (Hastelloy B2), CW6MC (Incoloy 625), etc.
Aluminum Bronze 95500, 95600, 95800, etc.
Trims: 1-2-5-8-10 as per API600
Dimensional Range
API 600 carbon steel: NPS 2'' - 64", Class ANSI 150-600#
API 603 stainless / alloy steel: NPS 1/2'' - 24", Class 150-300#
Design Feature:
Body and Bonnet Connection
The body and bonnet of Class 150~Class 900 gate valves are usually bolted bonnet design. And Class 1500~Class 2500 gate valves are usually of pressurized seal design.
Gasket of Cover Flange
Carbon steel or stainless steel+flexible graphite combined gasket is used for Class 150 gate valve; Stainless steel+flexible graphite wounded gasket is used for Class 300 gate valve; Stainless steel+flexible graphite wounded gasket is used for Class 600 gate valve, and ring joint gasket is also optional for Class 600 gate valve; Ring Joint gasket is used for Class 900 gate valve; Pressurized seal design is used for Class 1500~Class 2500 gate valve.
Packing Seal
Molded flexible graphite is used for packing material. PTFE or combined packing material can be also used if being requested by the customers. The internal surface of the stuffing box, of which area is contacted with the packing, is of excellent finish(Ra 3.2um). The stem surface, contacting with the packing, should be rolled and pressed after being precisely machined, so as to reach to the high finish and compactness(Ra 0.8um)and ensure the reliable tightness of the stem area.
Seat
For carbon steel gate valve, the seat is usually forged steel. The sealing surface of the seat is spray welded with hard alloy specified by the customer. Welded seat is used for NPS<10 gate valves, and welded on seat can be also optional if being requested by the customer. Welded on seat is used for NPS<10 carbon steel gate valves. For Stainless steel gate valve, intergral seat is usually adopted, or to weld hard alloy directly integrally. Threaded or welded on seat is also optional for stainless steel gate valve if being requested by the customer.
Stem Design
The stem is of integral forged design. The minimum diameter of the stem shall per the standard requirement. The connection of the stem and disc is T type. The strength of the connecting area is bigger than that of the T threaded part of the stem. The strength test if that area conforms to API 591.
| ITEM | PART NAME | MATERIAL |
| 1 | Body | ASTM A216 GR.WCB |
| 2 | Seat Ring | ASTM A105 + Stellite Faced |
| 3 | Disc | ASTM A216 GR.WCB+13Cr Faced |
| 4 | Stem | ASTM A182 GR.F6 |
| 5 | Gasket | Soft Iron + Graphite |
| 6 | Bonnet | ASTM A216 GR.WCB |
| 7 | Bonnet Bolt Nuts | ASTM A194 GR.2H |
| 8 | Bonnet Bolts | ASTM A193 GR.B7 |
| 9 | Backseat Bushing | ASTM A276 Type 410 |
| 10 | Stem Packing | Braided Graphite & Die Formed Graphite Ring |
| 11 | Eye Bolt Pins | Die formed Graphite Ring Carbon Steel |
| 12 | Gland Eye Bolts | ASTM A307 GR.B |
| 13 | Gland | ASTM A276 Type 410 |
| 14 | Gland Flange | ASTM A216 GR.WCB |
| 15 | Eye Bolt Nuts | ASTM A194 GR.2H |
| 16 | Grease Nipple | Carbon Steel |
| 17 | Stem Nut | ASTM A439 GR.D-2 |
| 18 | Retaining Nut | Carbon Steel |
| 19 | Hand wheel | Ductile Iron |
| 20 | Hand wheel Nut | Carbon Steel |
| 21 | Screw | Carbon Steel |
| 22 | Yoke | ASTM A216 GR.WCB |
| 23 | Yoke Pan Bolt Nuts | ASTM A194 GR.2H |
| 24 | Yoke Pan Bolts | ASTM A193 GR.B7 |
| 25 | Bearing | Steel |
Cast steel gate valve-Class 150 dimensions & weights
| Size | L | L 1 | L2 | H | W | Weight RF |
| in | mm | in | mm | in | mm | in | mm | in | mm | in | mm | kg |
| 2" | 50 | 7.00 | 178 | 8.50 | 216 | 7.50 | 191 | 15.31 | 389 | 8 | 200 | 17 |
| 2.5" | 65 | 7.50 | 191 | 9.50 | 241 | 8.00 | 203 | 17.28 | 439 | 8 | 200 | 23 |
| 3" | 80 | 8.00 | 203 | 11.12 | 283 | 8.50 | 216 | 19.69 | 500 | 10 | 250 | 29 |
| 4" | 100 | 9.00 | 229 | 12.00 | 305 | 9.50 | 241 | 23.43 | 595 | 10 | 250 | 47 |
| 6" | 150 | 10.50 | 292 | 15.88 | 403 | 11.00 | 279 | 30.59 | 975 | 14 | 350 | 80 |
| 8" | 200 | 11.50 | 267 | 18.00 | 419 | 12.00 | 305 | 38.39 | 777 | 14 | 350 | 129 |
| 10" | 250 | 13.00 | 330 | 16.50 | 457 | 13.50 | 343 | 45.67 | 1160 | 16 | 400 | 192 |
| 12" | 300 | 14.00 | 381 | 19.75 | 502 | 14.50 | 368 | 54.72 | 1555 | 18 | 450 | 287 |
| 14" | 350 | 15.00 | 356 | 22.50 | 572 | 15.50 | 394 | 61.22 | 1390 | 22 | 560 | 410 |
| 16" | 400 | 16.00 | 406 | 24.00 | 610 | 16.50 | 419 | 71.30 | 1811 | 24 | 600 | 571 |
| 18" | 450 | 17.00 | 610 | 26.00 | 660 | 17.50 | 445 | 82.80 | 2103 | 25 | 640 | 720 |
| 20" | 500 | 18.00 | 432 | 28.00 | 711 | 18.50 | 470 | 90.55 | 2300 | 27 | 680 | 1170 |
| 24" | 600 | 20.00 | 457 | 32.00 | 813 | 20.50 | 521 | 102.72 | 2609 | 30 | 760 | 1466 |
| 28" | 700 | 24.00 | 508 | 36.00 | 914 | - | - | 130.98 | 3327 | 24 | 610 | 1931 |
| 30" | 750 | 24.00 | 610 | 36.00 | 914 | - | - | 141.97 | 3606 | 24 | 610 | 2380 |
| 32" | 800 | 28.00 | 711 | 38.00 | 965 | - | - | 145.98 | 3708 | 24 | 610 | 2490 |
| 36" | 900 | 28.00 | 711 | 40.00 | 1016 | - | - | 154.49 | 3924 | 24 | 610 | 3600 |
| 40" | 1000 | 30.00 | 762 | 42.00 | 1067 | - | - | 168.50 | 4280 | 24 | 610 | 4580 |
| 42" | 1050 | 31.00 | 787 | 43.00 | 1092 | - | - | 175.39 | 4455 | 32 | 810 | 4710 |
| 48" | 1200 | 34.00 | 864 | 46.00 | 1168 | - | - | 193.31 | 4910 | 32 | 810 | 6500 |
Fangyuan Valve Group Co. Ltd, seated at Wuxing Industrial Zone, Oubei, Yongjia County, so called as "Pump & Valve Village of China", close to the national scenic spot Nanxijiang River to the east and facing the downtown of Wenzhou City to the south, and established in 1998 with the former as Zhejiang Fangyuan Valve Manufacturing Co. Ltd, has got a great achievement via hard work and continual going forth ahead and become a magnate of plate gate valve from an unknown small enterprise and leads the future of this industry. Fangyuan Valve Group Co. Ltd was derived from Zhejiang Fangyuan Valve Manufacturing Co. Ltd in 2005 and holds 5 stock subsidiaries, three production bases in Wenzhou, Shanghai and Lishui and a cast base in Lishui, a total registered capital up to 4, 000, 000 USD, a total land area 110000m2, over 600 staff members, 60 of which are technicians, a digital process center and more than 350 sets of various middle and large equipments and an annual output up to 12000 tons.
This Group comes as a key enterprise among the said"Pump & Valve Village of China"and a well known enterprise in the national valve industry and specializes in the production of plate gate valve, gas valve, electric station valve etc., with the development, design and invention patent know-how up to the advanced technical level of the world and the leading level of the nation and some of the products used to replace the imported ones. This Group has been accredited to ISO9001, API6A/6D, CE, AZ etc., won the first prize of scientific advance of Zhejiang Province and elected as a member of the first-grade supply network of China Petroleum, a member of China Petrochemical Resource Market, a member of No. 1 Energy Network, a member for supply of the national electric power system, an appointed production enterprise by Chemical Equipment General Corp., a Wenzhou high-tech enterprise, a start enterprise of Yongjia County, one of the 30 powerful enterprises among the said village and a banking credit AAA grade enterprise in the successive recent years. It holds a powerful strength in the technical, management and market etc. Respects and a notable superiority in the severe market competition.
The products, approved by the nation and province early or late, have been elected as quality products of Zhejiang Province and well-known ones of Wenzhou. This Group follows the guide policy of"takeing people as the base, managing the company with laws, prospecting the enterprise with quality, continuing innovations"and makes the products well sold to all over the country and USA, Canada, the Middle East, Europe etc. World markets, greatly favored by the users therein. Therefore a solid basis has been made for the further open-up of the world market, for the making of Fangyuan brand, for the national industrial progression and for the great target to create a valve magnate of China and step forward to the 50 powerful valve companies of the world.
Slab gate valve: Slab gate and expanding gate, double sealed upstream and downstream design, double block and bleed open and closed design. Size: DN50~DN1400, pressure: PN16~PN420, handwheel, gear, electric, pneumatic.
Fully welded ball valve.
Forged steel valve. Material: A105, LF2, F11, F22, F5, F304, F316, F321 etc.
