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SINGLE-PORTED GLOBE CONTROL VALVES TYPE Z1A

Single-ported globe control valves type Z1A are used in automatic and remote control instalations as flow control elements to adjust flow of liquids, steam and gases.

Wide range of material and design versions makes the valves applicable in most demanding working conditions in power generation, petroleum chemistry, heating, chemical industry, metallurgy, etc. versions designated for Western Europe market can be marked BR12.

We can adjust construction (design) of control valve to your individual needs. In such cases, please contact our technical support specialists.

Nominal sizes /diameter/ DN15; 20; 25; 40; 50; 80; 100; 150; 200; 250; 300
Nominal pressure • PN10; 16; 25; 40; 63; 100; 160; 250; 320; 400 • possible up to: PN630 • PN-H-74306:1985; PN-H-74307:1985. • CL150; CL300; CL600; CL900; CL1500; CL2500
Flow ratio 0,1 ... 960 m3/h
Control characteristics linear, equal percentage, quick-opening, modified
Rangeability 50:1, 100:1
Leakage class IV class acc PN-EN 60534-4 V class acc PN-EN 60534-4 VI class acc PN-EN 60534-4 - non-catalogue class from B to G acc PN-EN 12266-1
Media temperature - 196 ... + 650°C
Body materials carbon steel GP 240 GH (1.0619), WCB alloy steel G17CrMo9-10 (1.7379), WC9 carbon steel for low temperatures G20Mn5 (1.6220) stainless steel GX5CrNiMo 19-11-2 (1.4408), CF8M Use of other materials is possible but must be agreed upon.
Non-catalogue products We can adjust these parameters to your individual needs. In such cases, please contact our technical support specialists. Examples of non-standard valves: "Non-standard valves" and "Innovations".
  • various materials of valve body and internal parts, adapted to specific working conditions
  • design provides noise reduction, enhanced resistance to cavitation and flashing, and elimination of choked flow
  • wide range of nominal pressures, PN10 to CL2500, and flow ratio and control characteristics
  • reduction in aggressive and toxic media emissions to environment through application of bellow seal bonnets or bonnet packings meeting requirements of  TA - LUFT
  • easy assembly and dismantling of valve internal parts for maintenance and service
  • high durability and reliability due to application of top-class materials and surface improvement processes (burnishing, stelliting, heat treatment, CrN coating)
  • possibility of mating with revers action P/R (column) and P1/R1 (cast yoke) multi-spring actuators, and changing the spring range with no extra parts (keeping the number of springs)
  • possibility of fitting actuators with side-mounted (P1/R1) or top-mounted (P/R) handwheel
  • possibility of performing diagnostics of “valve - actuator” due to application of smart electro-pneumatic positioners
  • wide range of electric actuators
  • special designs for oxygen, hydrogen, gas fuels, low temperature fluids (liquid oxygen, liquid nitrogen), acid gases containing H2S; with heat jacket; for potentially explosive atmospheres as per ATEX Directive 94/9/EC
  • design and production process meet the requirements of Quality Management System ISO 9001 and Directive 97/23/EC, and regulations of AD2000 Merkblatt, designated for installation on pipelines
     
We can adjust construction (design) of control valve to your individual needs. In such cases, please contact our technical support specialists.

Zakłady Automatyki POLNA S.A.

37-700 Przemyśl
ul. Obozowa 23
POLSKA

TEL: 16 678 66 01
FAX: 16 678 65 24
FAX: 16 678 37 10
E-MAIL: marketing@polna.com.pl

KRS: 0000090173 z dnia 12.02.2002 r. Sąd Rejonowy w Rzeszowie, XII Wydział Krajowego Rejestru Sądowego
REGON: 650009986     NIP: 795-020-07-05     BDO: 000030128
KAPITAŁ ZAKŁADOWY: 5.379.435,80 PLN
KAPITAŁ WPŁACONY: 5.379.435,80 PLN
NUMER KONTA BANKOWEGO: Santander Bank Polska S.A 88 1500 1634 1216 3005 5238 0000