Steel Globe Valves are Bolted Bonnet, outside screw and yoke type, Rising Spindle construction. Nivz Forged Valves Body and bonnet made from high quality forgings.

QDV offer Forged Steel Globe Valves in size 1/2" (DN15) to 2" (DN50) to suit various critical, Non-critical applications and pressure rating in 800 class.

Manufacturing range covers Regular Port and Standard Port both types of Valve. Regular Port globe valves Have fast delivery or ready stock, for Standard Port globe valve do Manufactuing on order basis,wide range of Body Materials like ASTM A 105 - Forged Carbon Steel, ASTM A 182 F 304/304L/316/316L - Forgated Stainless Steel 304/304L/316/316L, ASTM A 182 F 11/22 - Alloy Steel to suit industrial Application.

 Available under any Third Party inspection also. for High Pressure & Temperature application Stellited F6 Face Seat & Disc available. Forged Globe Valve available is Threaded End, Socket Weld End, Butt Weld End and Flanged End Connection. For Flanged End Forged Steel Globe Valve flanges will be a welded with a valve body Not integral forged.

Features

• Body & Bonnet made from high quality forging.
• the Forgings are precision machined for high performance
• Leak Proof Body-Bonnet Joint with Spiral Wound Gasket
• Ground Finish Stem
• Self Aligning Two Piece Gland
• Back Seating feature facilitates repacking of the stuffing box on line with the Valve in fully open position.

Standards

Design Standard: BS 5352 / API 602 / ASME B 16.34

Inspection & Testing Standard: BS EN ISO 12266 - I (BS 6755 - I) / API 598

Flange to Flance Distance: as Per ANSI B 16.10 / BS 5352 / API 602

End Connection: Flanged End to ANSI B 16.5, DIN Standard / JIS Standard / IS Standard

Screwed - Threaded End to ANSI B 1.20.1

Socket Weld End to ANSI B 16.11

Butt Weld End to ANSI B 16.25

Manufacuring Size Range:1/2" (DN15) to 2" (DN50)

Pressure Rating of Valve:Class 8000LB~1500LB

Valve Operation: Hand Wheel Operated

Valve Seat Leakage:Leakage Class IV

High pressure seal globe valves Are designed in accordance with BS1873 and ASME B16.34 for service of high Temperature and high pressure and are widely used in fossil fuel power plant. Compared with bolted bonnet joint valves, it provides absolute reliable sealing of the bonnet joint, so that the pressure seal valves are more compact and Rigid as well as maintenance cost-effective at high temperature and high Pressure service.

the two openings for medium Flowing in and out are in the same direction, forming an angle of 180°. In Addition, at seat and disc seal surface are over-lay with iron-base alloy or Co-base alloy or carbide alloy for long duration. For large size valves will be Designed with main disc and vice disc type, and medium flow from up disc to Down disc, that the operation torque will be greatly decreased and the seat Tightness performance are more reliable. 

Design Features

Design standard as per: BS1873,ASME B16.34, GB/T 12235, JB/T3595.

Generally, lift is just 1/4 of the valve seat port, ensuring a short opening and closing time.

Only one sealing face is Designed on the valve body and valve disc,

for large size valves will be Designed with main disc and vice disc type, and medium flow from up disc to Down disc.

Full stellite overlay seat Sealing surface

Good for manufacturing process and easy to maintain.

the valve is designed as a back Seat sealing structure.

Use flexible and woven graphite Collaboration type packing.

Absolute bonnet joint leak Proof.

Optional by-pass design.

Product Range

Body material: carbon steel, Stainless steel, alloy steel

Nominal diameter: 1/2"～24"(DN15~DN600)

Pressure range:Class150～2500(PN10~PN420)

End connection: RF, RTJ, BW

Working temperature:-29℃～560℃

Operation: handwheel, gear Box, electric, etc.

 

 

Features

• Meet Design ANSI B16.5, B16.34, B16.10,B16.25 (for NPS≤24), MSS SP-44(for NPS>24), API-600
• Straight and Y patteren body design
• OS & Y,outside screw and yoke
• BB,Bolted Bonnet
• Yoke Intergral with bonnet
• Rising Stem and handwheel
• Loose Disc,choice of plug or ball
• Renewable Seat ring or Body seat ring
• Impact Handwheel for 10" & above
• Horizontal Servece
• Flanged or buttwelding ends
• Normal Size: 2"~20"
• Pressure: 150LB~2500LB
• Connection: Flanges,RTJ Flange,Butt Weld,Groove
• Material:Carbon Steel, Forged Steel
• Carbon Steel: ASTM A105, ASTM A216 WCB, ASTM A217 WC6, ASTM A217 WC9, ASTM A217 C5, ASTM A217 C12, ASTM A217 C12A
  Stainless Steel: ASTM A351 CF8, ASTM A351 CF8M, ASTM A351 CF3, ASTM A351 CF3M, ASTM A351 CM8, ASTM A890 GR4A, ASTM A890
• Operate: Handwheel, Wormgear, Gearbox, Penumatic Actuator, Electric  Actuator, Hydraulic Actuator.

Standards

Steel Globe Design: API 600 / BS1873

Steel Valves: ASME B16.34

Face to Face according to: ASME B16.10

Flanges Ends according to: ASME B16.5

Butt Welding Ends according to: ASME B16.25

Inspection and Testing according to: API 598 / API 6D