Forged steel butt welding check valve
Model : H11H
Caliber :DN15-50
Medium : Water, steam, oil, nitric acid, acetic acid, etc.
Pressure : 1.6〜6.4MPa
Applicable Temperature : -29~350℃
Applicable Industries : Urban construction, chemical industry, metallurgy, petroleum, pharmaceutical, food, environmental protection
Online Message
Order Notice

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

Valve bodyA105A182F22A182F304(L)A182F316(L)
Sealing nut316 clip flexible graphite316夹PTFE
Sealing ringA105A182F22A182F304(L)A193 B8(M)
Fixing nutSS
Lifting boltA193B7A193B16A193B8(M)A193B8(M)
Applicable mediumWater, 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;


Stable Operation / Thick Valve Body / Reliable Quality

WNT Strength Manufacturing, Assured Quality, Factory Quality Inspection
  • Low noise and stable

  • Energy-saving energy

  • Running smoothly

  • Not easy to rust

  • Low failure rate

  • Machinery Seal


Ingenuity Craftsmanship, Excellent Quality, Years Of Experience

  • Thickened Body

    Not easy to burst, good sealing, not easy to leak

  • Stable Performance

    Nearly 20 years of experience in the valve industry, reliable quality

  • Meticulous Workmanship

    Smooth and beautiful surface, stable structure

  • Strong Connection

    Strong connection, not easy to loosen

Forged steel valves are mainly used in the pipelines of various systems in thermal power plants to cut off or connect pipeline media. Applicable medium: non-corrosive medium such as water and steam. Compared with other valve products, forged steel valves are characterized by high temperature and high pressure, unique self-sealing design, the higher the pressure, the more reliable the sealing. Due to the special performance, technical characteristics and working conditions, the product has also become a substitute for other products.

The products adopt ISO, API, ANSI, BS, DIN, NF, JIS, JPI, GB, JB and other advanced domestic and foreign standards. The product diameter is 3/8"-2" (DN10mm-50mm), and the pressure rating is 150Lb- 2500Lb (0.1Mpa-42.0Mpa), working temperature is -196℃-680℃.
  • OIL






Forged steel butt welding check valve Order Description:
1. ①Product name and model
②Nominal diameter
③Nominal pressure
④Use medium
⑤Connection method
⑥Using temperature
⑦Whether to bring accessories
So that we can choose the right type for you

2. If you have special requirements, please indicate when ordering the product

3. If the model has been selected by the design unit, please order directly from our sales department according to the model.

4. When the occasion of use is very important or the environment is more complicated, please provide the design drawing as much as possible.

Contact Us

Wenzhou Weinaite Valve CO.,LTD

Address: 74 Industrial Zone, Longwan District Wenzhou, China

Mr: Leo

Tel: 86-0577-55889965

Fax: 86-0577-86825598



WhatsApp: 86+13757757748  

Product Category

Follow Us

  • Mobile Website

Copyright © 2021 Wenzhou Weinaite Valve CO.,LTD All Rights Reserved. Technical Support: wzxinnet Sitemap