a. ZXP series 

ZXP pneumatic diaphragm single seated regulating valve

Features: It is of compact configuration, light weight, motion agility, and limited loss of pressure drop, large valve capacity and exact flow characteristics. It is widely applied to the fields of petroleum, chemical. plant, electric power and smelting. 

Main technical parameters: 

1) nominal size: DN 20-200mm (3/4"~8″)

2) nominal pressure: PN(MPa)1.6\4.0\6.4\10.0  (ASME Class:150/300/400/600) 

3) leakage class: ANSI IV/V/VI

4) flow characteristics: equal percentage, linear 

5) temperature range: -196~+560celsius.

Types of ZXP

*ZXPO Standard type, the operating Temperature -20 ~ +200celsius, leakage grade IV .(PIC 1)

 

* ZXPG Heat dispersing type, the valve covers additional heat radiator which can be used for medium of temperature -60 ~ +450celsius occasions (PIC 2) 

 

* ZXPV The bellows type, which guarantee the sealing of the movement of the stem to form a complete seal environment, blocking external fluid leakage (PIC 3) 

 

* ZXPD low temperature type, the valve using long-necked tube and bellow sealed structure which can be used for cryogenic -196celsius occasions (PIC 4) 

 

* ZXPQ regulate and cut-off valve whose soft sealing type structure up to class VI leakage standards (micro-bubble level) (PIC 5) 

 

* ZXPJ-type jacket and insulation belt with stainless steel insulation jacket for easy to crystallize after cooling fluid \ solidification caused by blockage occasions (PIC 6) 

 

* ZXPF lined with plastic single-seat control valve lined F46 with fluid area, packing with PTFE, bellows seal, especially for automatic control of strong corrosive medium.

 

* Spool \ seat are made of build-up Satellite alloy, suitable for high temperature \ deep cold and other harsh conditions. 

 

Specifications and technical parameters

 

Related

 

 

 

 

 

 

 

 

i. ZSQF CONTROL VALVES

Pneumatic bottom tank Valve

 

ZSQF series pneumatic tank valve applies integrated direct flow structure. Its valve body has streamlined configuration without any blocking flow channel. The flow channel internal face is sand-blasted, smooth and wearing-proof, with small flow resistance and with no dead corner. The soft sealing could ensure zero leakage and the hard sealing applies bead-welded Stellite alloy. The product is suitable for work conditions with high temperature or severe conditions containing solid particles. For food processing, the internal face is paved with Teflon without superior corrosive resistance. It meets highest sanitary standards, applicable for conditions with rigorous sanitary regulations in food and beverage industry.

 

The product provides two structural forms: up-spread and down-spread, which are suitable to different reaction vessel constructions. The nominal through diameter has a scope of DN25~300mm (1"~12″), the nominal pressure rating is PN1.6~4.0 MPA (ASME Class:150/300), and the applicable fluid temperature range is -60~450celsius. It is widely used in such sectors including chemical industry, food processing, pharmaceutical, etc. for discharging at reaction vessel bottom.

 

The product has following characteristics:

1. The valve body applies integrated design and the flow channel uses direct flow without blocking and dead corner and with small flow resistance.

　　2. The flow channel internal face is sand-blasted, smooth and wearing-proof.

3. The flow channel internal surface is sprayed with Teflon, meeting food-level sanitary requirement.

　　4. PTFE sealing face ensuring zero leak.

5. Sealing face applies bead-welded Stellite alloy, applicable for severe work conditions including high temperature and solid particles.

　　6. Hand wheel mechanism available, ensuring productivity even under air source malfunction. 

　　7. Accurate switch position display with limiter.＜

 

Main Material

Valve body: WCB, WC6,CF8, CF3, CF8M, CF3M, CF8+teflon

sealing gasket : PTFE, 304,304L,316,316L,bulid-up welding Stellite alloy

Valve stem: 304, 304L, 316, 316L,630