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Control valves type Z1A-C1

This valve type is an efficient and durable solution for gas engineering deposit fluid systems, where erosion from solids reduces the life of valve internal components.

High pressure drops and two-phase mixture also cause the possibility of cavitation. These hazards are effectively limited by the design of the valve.

The valve seat and plug are made of ceramic or solid stellite materials, the mechanical performance of which assures high durability of the product.

We can adjust the control valve to match your individual needs.

Nominal sizesDN15; 20; 25; 40; 50; 80;
Nominal pressure• PN10; 16; 25; 40; 63; 100; 160; 250; 320; 400 • CL150; CL300; CL600; CL900; CL1500; CL2500; CL10000
Flow ratio0,1 ... 6,3 m3/h
Control characteristicslinear, equal percentage, quick-opening, modified
Rangeability50:1, 100:1
Leakage classIV class acc. to PN-EN 60534-4, V class acc. to PN-EN 60534-4, non-catalogue class from B to G acc. to PN-EN 12266-1
  • various materials of valve body cast and internal parts, adapted to specific working conditions
  • constructional designs limiting the level of generated noise, increasing resistance to cavitation and flashing, enabling elimination of throttled flow
  • wide range of nominal pressures from PN10 to CL2500, as well as flow ratios and control characteristics
  • reduction in aggressive and toxic media emissions to the environment through application of bellow seal bonnets or bonnet packings meeting the 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 coatings)
  • possibility of matching with reversible action P1/R1 (with cast yoke) and P/R (column) multi-spring actuators and changing the spring range with no extra parts (keeping the number of springs)
  • possibility of equipping the actuators with a side (up to P1/R1) or top (up to P/R) manual drive
  • possibility of performing diagnostics of “valve-actuator” system, due to application of smart electro-pneumatic positioners
  • wide range of electric drives
  • - possibility of special executions: for oxygen, hydrogen, low temperature mediums (liquid oxygen, liquid nitrogen), acid gases containing H2S; with heating jacket; for explosive atmospheres as per 94/9/EC – ATEX
  • the 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
  • 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 coatings)
We can adjust the control valve to match your individual needs. In such cases, please contact our technical support specialist.

POLNA S.A.

37-700 Przemyśl
ul. Obozowa 23
POLAND

TEL: +48 16 678 66 01
FAX: +48 16 678 65 24
FAX: +48 16 678 37 10
E-MAIL: marketing@polna.com.pl

KRS: NATIONAL COURT REGISTER: 0000090173 dated 12.02.2002 r. Provincial Court in Rzeszów, XII Division of National Court Register
COMPANY ID: 650009986     NIP: 795-020-07-05     BDO: 000030128
SHARE CAPITAL: 3.815.013,80 PLN
PAID CAPITAL: 3.815.013,80 PLN
BANK ACCOUNT NUMBER: 88 1030 1250 0000 0000 8901 4018 EUR SWIFT: CITIPLPX