**Product Specifications:**
- **Model No.:** deca-b
- **Work Pressure:** High Pressure (10.0 MPa < Pn < 80.0 MPa)
- **Working Temperature:** Normal Temperature (-40°C < T < 120°C)
- **Material of Seal Surface:** Metal Hard Sealed
- **Valve Body:** Forge Welding
- **Application:** Industrial Usage, Water Industrial Usage
- **Trademark:** DECRRD
- **Transport Package:** Wooden Case
- **Specification:** Customed
- **Origin:** Wenzhou
**Key Features:**
1. **Compact Structure:** Low volume, light weight, and easy to maintain.
2. **Smooth Flow Channel:** Low flow resistance, low pressure drop, and high flow capacity.
3. **Three-Eccentric Multi-Level Compound Seal Butterfly Valve:** Utilizes a unique cam effect, ensuring the seat is completely disengaged from the disc seal ring during the 90° travel, eliminating friction.
4. **Three-Eccentric Soft Seal Butterfly Valve:** The sealing pair is made of integral PTFE materials, ideal for applications requiring high medium cleanliness, frequent on/off operations, and strong corrosion resistance. It ensures a service life comparable to that of the pipe in thermal systems.
5. **Three-Eccentric Metal Seal Butterfly Valve:** Features a full metal seal structure with "hard-contact-hard" design. This type is suitable for extreme temperature conditions, severe erosion, and environments where crystallization may occur.
6. **Strong Anti-Wear Performance:** The disc uses a three-eccentric structure, and the sealing face is coated with hard alloy, providing excellent wear resistance.
7. **Valve Flow Characteristics:** Approximate equal percentage, allowing for both control and shut-off functions.
**Main Technical Parameters:**
- **Type:** Straight-through flat offset casting body
- **Nominal Diameter:** DN50 ~ 1600 (NPS2 ~ 64)
- **Nominal Pressure:** PN 16 ~ 40 (Class 150 ~ 600)
- **Connection Type:** Flange type, Wafer type
- **Body Material:** A216-WCB, A351-CF8, A351-CF8M, A351-CF3, A351-CF3M, A217-WC6, A217-WC9
- **Bonnet:** Standard: -29 ~ 250°C; High Temperature (Cooling Fin): 250 ~ 600°C; Low Temperature (Extension): -46 ~ -29°C
- **Packing:** PTFE, Flexible Graphite, Nickel-based Wire Reinforced Graphite
- **Disc Type:** Three-Eccentric Rotary Type
- **Seat Type:** Multi-Level Compound Seal, Soft Seal, Metal Hard Seal
- **Flow Characteristics:** Approximate Equal Percentage
- **Adjustable Ratio:** 30:1
- **Rated Cv Value:** See Table 3 for details
- **Rated Travel:** 0~60° or 0~90°
- **Seat Shut-off Class:** Hard Seal: ANSI Class IV, V; Soft Seal, Multi-Level Compound Seal: ANSI Class VI
- **Outline Dimensions:** See Table 8 for details
**Design and Manufacturing Standards:**
| Standard | Design and Manufacturing | Face-to-Face Dimensions | Flange Dimensions | Pressure and Temperature Ratings | Inspection and Testing | Leakage Class |
|---------|--------------------------|-------------------------|-------------------|----------------------------------|------------------------|---------------|
| National and Industry Standards | GB/T12224, GB/T12238, JB/T8527 | GB/T12221 | GB/T9112~9124, HG/T20592~20635, SH3406, JB/T79 | GB/T9124, GB/T12224 | JB/T9092, GB/T13927 | GB/T4213 |
| American Standard | API609 | API609 | ASME B16.5, ASME B16.47 | ASME B16.34 | API598 | ANSI/FCI70-2, ASME B16.104 |
| Other National Standards | – | JIS B2002, ISO5752 | EN1092 | – | – | – |
**Actuator Table:**
| Model Item | Cylinder Actuator (AT/AW, ATK/AWS) | Electric Actuator |
|------------|------------------------------------|-------------------|
| Usage | Shut off, Adjust | Shut off, Adjust |
| Power Supply | 0.4~0.7MPa(G), Air supply: 0.4~0.7MPa(G) | 220VAC/50HZ, 380VAC/50HZ |
| Connection | NPT1/4-Φ8, NPT3/8-Φ12, NPT1/2-Φ16 | Electrical connection based on user requirements |
| Action Type | Shut off: When solenoid valve is powered on, valve is on or off. Adjust: Valve opens or closes as positioner input signal increases. | Shut off: Valve is on or off when powered on. Adjust: Valve opens or closes as input signal increases. |
| Allowable Ambient Temperature | -40°C ~ +80°C | -40°C ~ +80°C |
| Accessories | Hand operated mechanism, solenoid valve, electric/pneumatic valve positioner, transponder switch, air filtering pressure relief valve, speed increaser, etc. | Hand operated mechanism, transponder switch, surge protector, local switch, etc. |
**Product Images:**
[Image 1: Stainless Steel Pneumatic Butterfly Valve]
[Image 2: Stainless Steel Pneumatic Butterfly Valve]
[Image 3: Stainless Steel Pneumatic Butterfly Valve]
[Image 4: Stainless Steel Pneumatic Butterfly Valve]
[Image 5: Stainless Steel Pneumatic Butterfly Valve]
[Image 6: Stainless Steel Pneumatic Butterfly Valve]
This product is ideal for industrial applications, especially in water treatment and high-pressure environments. Its durable construction and advanced sealing technology make it a reliable choice for demanding conditions.
special steel,steel specialties,specialty steel
Jiangyou ChongxinSpecial Metal Materials Co., Ltd. , https://www.zhongxindiesteel.com