Piston Valves

UKL Piston Valve is basically Seat less and Glandless valve and by virtue of its design can replace both, the conventional type of Gate and Globe valves, with distinct advantages over them. The Klinger Piston valve works on the principle of Resilient rings in conjunction with a Metallic Stainless Steel Piston, that moves vertically between the rings, giving a Seal that is both effective as well as Durable. This sealing system gives a bubble tight shut off, equivalent if not superior to Class VI leak standards.The Sealing rings are the heart of the valves, are available in Non Asbestos, Tanged Graphite, and Graphited Asbestos varieties, to effectively handle more than 250 Industrial Media.

UKL piston valves are ideally recommended for critical and hazardous media, including Steam, Heat Transfer Oils, Acids, Gases, VACUUM.

Manufactured in Forged Carbon Steel / Stainless Steels to 800# – Sizes 15mm to 40mm, in SW and Threaded Ends. Cast Carbon Steel / Stainless Steels with Flanges to 150#, #300 & DIN standards 50 to 200mm.

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Operating Animation

Economic, easy to service
Absolutely leak-tight across the ports and to the atmosphere
No erosion of sealing surface
Saves energy and does not contaminate the environment
Maintenance free

Regulating Piston/Lantern Bush; for coarse regulating/Throttling operation
Extended Spindle: For Cryogenic application/Hot media to prevent heat transfer to H/W and aid handling of valve
Heating Jacket: For Media that tends to solidify/crystallize at low temperature and needs constant heating by either steam/Thermic oils circulated through the Jacket.
Pneumatic, Hydraulic or Electrical Actuator: For remote operating of the Valves

USN 15-40 & KVSN50

UKL Piston valve with FCS construction as per ASTM A105,

Metric

Size (NB)

Max. Op. Pr / Temp (kg/cm2 / oC)

End connections

Optional /Additional information

15 to 40

55 / 427

Screwed-BSP/BSPT/NPT

Socket weld

Flanged #150/#300(weld-on)

MOC - CF8/CF8M

IBR/Non-IBR

Instruction Manual (Metric)

Datasheet (USN 15-40)

KVN 15-50

UKL Piston valve with CCS construction as per ASTM A216 Gr. WCB
Metric

Size (NB) Max. Op. Pr / Temp (kg/cm2 / oC End connections Optional /Additional information
15 to 40 55 / 427 Flanged #150/#300
MOC - CF8/CF8M
IBR/NON IBR

Instruction Manual (Metric)

Datasheet (KVN15-50)

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KVN 65-200

UKL Piston valve with CCS construction as per ASTM A216 Gr. WCB,
Metric

Size (NB) Max. Op. Pr / Temp (kg/cm2 / oC) End connections Optional /Additional information
65 to 200 55 / 427 Flanged #150/#300
MOC - CF8/CF8M
IBR/Non-IBR
End conn : BW

Instruction Manual (Metric)

Datasheet (KVN65-200)

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1. Piston valve can be used for which media?

Piston valve can be used for approximately 250 different media. The most prevalent are listed below:
1) Steam 2) Hot water 3) Thermic fluid-HTM
4) Ammonia 5) Fatty acid 6) Chilled Brine
7) Hydrogen 8) Dry chlorine 9) Veg Oil
10) R-22 gas 11) Molten Sulphur 12) LDO

2. In which pressure ratings are these piston valves available?

UKL Piston valves are available in below ratings:
USN 15-40 NB SW, Class 800, MWP – 64 bar(g)
KVN 50-200 NB, FLG, Class 150 & 300 MWP – As per Class 150 and Class 300

3. Which are the main internal parts of Piston valves? What are the material used for these parts?

The main internal parts of a piston valve are ;
Body/Bonnet :
1) Forged Carbon Steel, ASTM A105
2) Cast Carbon Steel, ASTM A216 Gr WCB
3) Cast Stainless Steel, ASTM A351 Gr CF8M
Piston : AISI 304 / AISI 316
Sealing rings : KX-GT, Exfoliated graphite and Stainless Steel 316

4. What is a Piston valve? What are its salient features?

Piston Valve is a Seat less and Glandless valve and by virtue of its design can replace both, the conventional type of Gate and Globe valves, with distinct advantages over them.
Salient features:
1) It is Seatless & Glandless
2) Resilient sealing, hence, leak-tight across the ports and to the atmosphere
3) Confirms to leakage class VI
4) No erosion of sealing surface
5) Long service life
6) Environment friendly, does not contaminate the environment
7) Saves energy
8) Economic, easy to service

Salient Features

List of Salient Features:

Economic, easy to service
Absolutely leak-tight across the ports and to the atmosphere
No erosion of sealing surface
Saves energy and does not contaminate the environment
Maintenance free

Additional Information

Regulating Piston/Lantern Bush; for coarse regulating/Throttling operation
Extended Spindle: For Cryogenic application/Hot media to prevent heat transfer to H/W and aid handling of valve
Heating Jacket: For Media that tends to solidify/crystallize at low temperature and needs constant heating by either steam/Thermic oils circulated through the Jacket.
Pneumatic, Hydraulic or Electrical Actuator: For remote operating of the Valves

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