Q21F-16P external thread stainless steel one-piece wide ball valve
The Q21F-16P external thread blackened stainless steel one-piece wide ball valve is a solid core ball valve developed by Ruiward Valve Company using the all steel circular channel forged steel process valve body and elastic sealing valve seat structure to achieve opening and closing with the rotation of the valve stem axis. The sealing surface and ball surface of the ball valve are always in a closed state, which will not cause erosion of the valve sealing surface. Ruiward Valve can customize two end welded joint extension pipes for you according to the working conditions. The valve is easy to open and close, reliable in sealing, compact in size, simple in structure, easy to operate and maintain, and has a wide range of applications.
Product Overview
The Q21F-16P external thread blackened stainless steel one-piece wide ball valve is a solid core ball valve developed by Ruiward Valve Company using the all steel circular channel forged steel process valve body and elastic sealing valve seat structure to achieve opening and closing with the rotation of the valve stem axis. The sealing surface and ball surface of the ball valve are always in a closed state, which will not cause erosion of the valve sealing surface. Ruiward Valve can customize two end welded joint extension pipes for you according to the working conditions. The valve is easy to open and close, reliable in sealing, compact in size, simple in structure, easy to operate and maintain, and has a wide range of applications.
Unique advantages
- Explosion proof valve stem design, safe and reliable.
- The structure is simple, easy to maintain, and the detachable sealing ring design makes disassembly and replacement relatively easy.
- Full bore design, with pressure balancing holes in the ball groove and low flow resistance.
- The one-piece forged valve body has leak free performance, reliable fastening, and is widely used in vacuum systems.
- Easy to operate, quick opening and closing, only 90 ° rotation is needed to achieve opening and closing conversion.
- When opening and closing, the sealing surface between the ball and the valve seat is isolated from the medium, effectively preventing the valve sealing surface from being eroded when the medium passes through.
- Widely applicable, with diameters ranging from a few millimeters to tens of centimeters, suitable for applications ranging from high vacuum to high pressure, providing various thread standards.
- Ball valves have wiping properties during the opening and closing process and can be used in media with suspended solid particles.
Performance specification
| Work pressure | 1.6~4.0Mpa |
| Product Specifications | 1/4″〜2″ |
| Suitable temperature | -50℃–120℃(PPL<300℃) |
| Applicable Medium | Ethylene glycol,fluorinated fluid,refrigerant,etc |
| Threaded end can be manufactured according to BSPT and NPT | |
Material list

| No. | Part Name | Material | No. | Part Name | Material |
| 1 | Body | WCB/CF8/CF8M | 8 | V Type Packing | PTFE |
| 2 | Seat | PTFE+15%FV | 9 | Gland | SS304 |
| 3 | Bonnet | WCB/CF8/CF8M | 10 | Handle | SS304 |
| 4 | Valve Cover Gasket | SS304 | 11 | Spring Washer | SS304 |
| 5 | Ball | SS304/SS316 | 12 | Handle Nut | SS304 |
| 6 | Valve Stem | SS304/SS316 | 13 | Handle Cover | PLASTIC |
| 7 | Thrust Washer | PTFE | — | — | — |
Overall dimensions
| SIZE | d | L | W | H | D | |
| 1/4″ | DN6 | 5 | 80 | 105 | 55 | 20*1.5 |
| 3/8″ | DN10 | 8 | 85 | 110 | 58 | 24*1.5 |
| 1/2″ | DN15 | 11 | 85 | 110 | 58 | 30*2 |
| 3/4″ | DN20 | 13 | 90 | 110 | 62 | 36*2 |
| 1″ | DN25 | 17 | 100 | 110 | 68 | 42*2 |
| 1-1/4″ | DN32 | 23 | 125 | 150 | 75 | 52*2 |
| 1-1/2″ | DN40 | 25 | 135 | 150 | 83 | 60*3 |
| 2″ | DN50 | 32 | 140 | 180 | 90 | 72*3 |
Product Commitment
- Quality commitment: All types of valves provided by our factory are designed, manufactured, tested and accepted in accordance with relevant domestic standards such as GB, JB, SH, HG, CJ, as well as international standards such as ANSI, JIS, BS, DIN, etc;
- Supply commitment: Ruiward Valve guarantees to provide brand new defect free products, as well as relevant drawings and other technical documents related to the products, to ensure that users have no worries during use;
- Service commitment: The product warranty period is 12 months from the date of delivery, and the “three guarantees” service (return, replacement, and repair) is implemented.
Ruiward valve products are exported to Europe, America, Southeast Asia and other countries with reasonable prices, stable quality, and perfect after-sales service. It is your trusted brand. Welcome to call 86-577-88937087 for inquiries!
Ordering Instructions
- If the product model of Ruiward Company has been selected by the design unit, please order directly from our sales department or affiliated regional business office according to the model;
- If the model has not been selected before ordering, please provide us with the following usage parameters: ① nominal diameter (DN), ② fluid properties (including nominal pressure (Mpa), temperature (℃), pressure difference before and after the valve, connection method (thread, flange, clamp), viscosity or acidity, etc.), ③ valve body and core materials;
- Product driving modes: manual, worm gear, self operated, pneumatic, electric, etc;
- Product standards: National Standard GB, Japanese Standard JIS, American Standard ANSI, German Standard DIN, British Standard BS, European Standard EN, etc;
- When the application is very important or the pipeline is complex, please provide design drawings and detailed parameters as much as possible, and the technical team of Ruiward Company will review and control them for you;
- Our company provides a quotation list and technical standard specifications for customer confirmation, and the contract will be drafted after both parties confirm the technical aspects.
Fill in the form below and our team will be happy to assist you
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